IDT82V2088DR,IDT82V2088DR pdf中文资料,IDT82V2088DR引脚图,IDT82V2088DR电路-Datasheet-电子工程世界

Datasheet> 器件分类 > IDT82V2088DR

文档预览

IDT82V2088DR: 产品描述OCTAL CHANNEL T1/E1/J1 LONG HAUL/ SHORT HAUL LINE INTERFACE UNIT; 文件大小985KB，共78页; 制造商IDT(艾迪悌); 官网地址http://www.idt.com/

下载文档选型对比全文预览

IDT82V2088DR概述

OCTAL CHANNEL T1/E1/J1 LONG HAUL/ SHORT HAUL LINE INTERFACE UNIT

文档预览

下载PDF文档

全文
预览

OCTAL CHANNEL T1/E1/J1 LONG HAUL/

SHORT HAUL LINE INTERFACE UNIT

IDT82V2088

FEATURES:

•

Eight channel T1/E1/J1 long haul/short haul line interfaces

Supports HPS (Hitless Protection Switching) for 1+1 protection

without external relays

Receiver sensitivity exceeds -36 dB@772KHz and -43 dB@1024

KHz

Programmable T1/E1/J1 switchability allowing one bill of ma-

terial for any line condition

Single 3.3 V power supply with 5 V tolerance on digital interfaces

Meets or exceeds specifications in

ANSI T1.102, T1.403 and T1.408

- ITU I.431, G.703,G.736, G.775 and G.823

- ETSI 300-166, 300-233 and TBR 12/13

- AT&T Pub 62411

Per channel software selectable on:

- Wave-shaping templates for short haul and long haul LBO (Line Build

Out)

- Line terminating impedance (T1:100

Ω,

J1:110

Ω,

E1:75

Ω/120 Ω)

- Adjustment of arbitrary pulse shape

- JA (Jitter Attenuator) position (receive path or transmit path)

- Single rail/dual rail system interfaces

B8ZS/HDB3/AMI line encoding/decoding

- Active edge of transmit clock (TCLK) and receive clock (RCLK)

Active level of transmit data (TDATA) and receive data (RDATA)

Receiver or transmitter power down

High impedance setting for line drivers

PRBS (Pseudo Random Bit Sequence) generation and detection

with 2

-1 PRBS polynomials for E1

- QRSS (Quasi Random Sequence Signals) generation and detection

with 2

-1 QRSS polynomials for T1/J1

- 16-bit BPV (Bipolar Pulse Violation)/Excess Zero/PRBS or QRSS

error counter

- Analog loopback, Digital loopback, Remote loopback and Inband

loopback

Per channel cable attenuation indication

Adaptive receive sensitivity

Non-intrusive monitoring per ITU G.772 specification

Short circuit protection for line drivers

LOS (Loss Of Signal) & AIS (Alarm Indication Signal) detection

JTAG interface

Supports serial control interface, Motorola and Intel Non-Multi-

plexed interfaces

Package:

IDT82V2088: 208-pin PQFP and 208-pin PBGA

•

DESCRIPTION:

The IDT82V2088 can be configured as an octal T1, octal E1 or octal J1

Line Interface Unit. In receive path, an Adaptive Equalizer is integrated to

remove the distortion introduced by the cable attenuation. The IDT82V2088

also performs clock/data recovery, AMI/B8ZS/HDB3 line decoding and

detects and reports the LOS conditions. In transmit path, there is an AMI/

B8ZS/HDB3 encoder, Waveform Shaper and LBOs. There is one Jitter

Attenuator for each channel, which can be placed in either the receive path

or the transmit path. The Jitter Attenuator can also be disabled. The

IDT82V2088 supports both Single Rail and Dual Rail system interfaces and

both serial and parallel control interfaces. To facilitate the network mainte-

nance, a PRBS/QRSS generation/detection circuit is integrated in each

channel, and different types of loopbacks can be set on a per channel basis.

Four different kinds of line terminating impedance, 75Ω, 100

Ω,

110

Ω

and

120

Ω

are selectable on a per channel basis. The chip also provides driver

short-circuit protection and supports JTAG boundary scanning.

The IDT82V2088 can be used in SDH/SONET, LAN, WAN, Routers,

Wireless Base Stations, IADs, IMAs, IMAPs, Gateways, Frame Relay

Access Devices, CSU/DSU equipment, etc.

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

INDUSTRIAL TEMPERATURE RANGES

July 2004

DSC-6043/5



OCTAL CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT

INDUSTRIAL

TEMPERATURE RANGES

TABLE OF CONTENTS

IDT82V2088 PIN CONFIGURATIONS .......................................................................................... 8

PIN DESCRIPTION ..................................................................................................................... 10

FUNCTIONAL DESCRIPTION .................................................................................................... 16

3.1

T1/E1/J1 MODE SELECTION .......................................................................................... 16

3.2

TRANSMIT PATH ............................................................................................................. 16

3.2.1 TRANSMIT PATH SYSTEM INTERFACE.............................................................. 16

3.2.2 ENCODER .............................................................................................................. 16

3.2.3 PULSE SHAPER .................................................................................................... 16

3.2.3.1 Preset Pulse Templates .......................................................................... 16

3.2.3.2 LBO (Line Build Out) ............................................................................... 17

3.2.3.3 User-Programmable Arbitrary Waveform ................................................ 17

3.2.4 TRANSMIT PATH LINE INTERFACE..................................................................... 21

3.2.5 TRANSMIT PATH POWER DOWN ........................................................................ 21

3.3

RECEIVE PATH ............................................................................................................... 22

3.3.1 RECEIVE INTERNAL TERMINATION.................................................................... 22

3.3.2 LINE MONITOR ...................................................................................................... 23

3.3.3 ADAPTIVE EQUALIZER......................................................................................... 23

3.3.4 RECEIVE SENSITIVITY ......................................................................................... 23

3.3.5 DATA SLICER ........................................................................................................ 23

3.3.6 CDR (Clock & Data Recovery)................................................................................ 23

3.3.7 DECODER .............................................................................................................. 23

3.3.8 RECEIVE PATH SYSTEM INTERFACE ................................................................ 23

3.3.9 RECEIVE PATH POWER DOWN........................................................................... 23

3.3.10 G.772 NON-INTRUSIVE MONITORING ................................................................ 24

3.4

JITTER ATTENUATOR .................................................................................................... 25

3.4.1 JITTER ATTENUATION FUNCTION DESCRIPTION ............................................ 25

3.4.2 JITTER ATTENUATOR PERFORMANCE ............................................................. 25

3.5

LOS AND AIS DETECTION ............................................................................................. 26

3.5.1 LOS DETECTION ................................................................................................... 26

3.5.2 AIS DETECTION .................................................................................................... 27

3.6

TRANSMIT AND DETECT INTERNAL PATTERNS ........................................................ 28

3.6.1 TRANSMIT ALL ONES ........................................................................................... 28

3.6.2 TRANSMIT ALL ZEROS......................................................................................... 28

3.6.3 PRBS/QRSS GENERATION AND DETECTION.................................................... 28

3.7

LOOPBACK ...................................................................................................................... 28

3.7.1 ANALOG LOOPBACK ............................................................................................ 28

3.7.2 DIGITAL LOOPBACK ............................................................................................. 28

3.7.3 REMOTE LOOPBACK............................................................................................ 28

3.7.4 INBAND LOOPBACK.............................................................................................. 30

3.7.4.1 Transmit Activate/Deactivate Loopback Code......................................... 30

3.7.4.2 Receive Activate/Deactivate Loopback Code.......................................... 30

3.7.4.3 Automatic Remote Loopback .................................................................. 30

OCTAL CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT

INDUSTRIAL

TEMPERATURE RANGES

3.8

3.9

3.10

3.11

3.12

3.13

3.14

3.15

3.16

ERROR DETECTION/COUNTING AND INSERTION ...................................................... 31

3.8.1 DEFINITION OF LINE CODING ERROR ............................................................... 31

3.8.2 ERROR DETECTION AND COUNTING ................................................................ 31

3.8.3 BIPOLAR VIOLATION AND PRBS ERROR INSERTION ...................................... 32

LINE DRIVER FAILURE MONITORING ........................................................................... 32

MCLK AND TCLK ............................................................................................................. 33

3.10.1 MASTER CLOCK (MCLK) ...................................................................................... 33

3.10.2 TRANSMIT CLOCK (TCLK).................................................................................... 33

MICROCONTROLLER INTERFACES ............................................................................. 34

3.11.1 PARALLEL MICROCONTROLLER INTERFACE................................................... 34

3.11.2 SERIAL MICROCONTROLLER INTERFACE ........................................................ 34

INTERRUPT HANDLING .................................................................................................. 35

GENERAL PURPOSE I/O ................................................................................................ 36

5V TOLERANT I/O PINS .................................................................................................. 36

RESET OPERATION ........................................................................................................ 36

POWER SUPPLY ............................................................................................................. 36

PROGRAMMING INFORMATION .............................................................................................. 37

4.1

4.2

4.2.1 GLOBAL REGISTERS............................................................................................ 39

4.2.2 JITTER ATTENUATION CONTROL REGISTER ................................................... 41

4.2.3 TRANSMIT PATH CONTROL REGISTERS........................................................... 41

4.2.4 RECEIVE PATH CONTROL REGISTERS ............................................................. 43

4.2.5 NETWORK DIAGNOSTICS CONTROL REGISTERS ........................................... 45

4.2.6 INTERRUPT CONTROL REGISTERS ................................................................... 48

4.2.7 LINE STATUS REGISTERS ................................................................................... 51

4.2.8 INTERRUPT STATUS REGISTERS ...................................................................... 54

4.2.9 COUNTER REGISTERS ........................................................................................ 55

4.2.10 TRANSMIT AND RECEIVE TERMINATION REGISTER ....................................... 56

IEEE STD 1149.1 JTAG TEST ACCESS PORT ........................................................................ 57

5.1

JTAG INSTRUCTIONS AND INSTRUCTION REGISTER ............................................... 58

5.2

JTAG DATA REGISTER ................................................................................................... 58

5.2.1 DEVICE IDENTIFICATION REGISTER (IDR) ........................................................ 58

5.2.2 BYPASS REGISTER (BR)...................................................................................... 58

5.2.3 BOUNDARY SCAN REGISTER (BSR) .................................................................. 58

5.2.4 TEST ACCESS PORT CONTROLLER .................................................................. 59

TEST SPECIFICATIONS ............................................................................................................ 61

MICROCONTROLLER INTERFACE TIMING CHARACTERISTICS ......................................... 73

7.1

SERIAL INTERFACE TIMING .......................................................................................... 73

7.2

PARALLEL INTERFACE TIMING ..................................................................................... 74

OCTAL CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT

INDUSTRIAL

TEMPERATURE RANGES

LIST OF TABLES

Table-1

Table-2

Table-3

Table-4

Table-5

Table-6

Table-7

Table-8

Table-9

Table-10

Table-11

Table-12

Table-13

Table-14

Table-15

Table-16

Table-17

Table-18

Table-19

Table-20

Table-21

Table-22

Table-23

Table-24

Table-25

Table-26

Table-27

Table-28

Table-29

Table-30

Table-31

Table-32

Table-33

Table-34

Table-35

Table-36

Table-37

Table-38

Table-39

Table-40

Pin Description ..............................................................................................................

Transmit Waveform Value For E1 75

Ω

........................................................................

Transmit Waveform Value For E1 120

Ω

......................................................................

Transmit Waveform Value For T1 0~133 ft...................................................................

Transmit Waveform Value For T1 133~266 ft...............................................................

Transmit Waveform Value For T1 266~399 ft...............................................................

Transmit Waveform Value For T1 399~533 ft...............................................................

Transmit Waveform Value For T1 533~655 ft...............................................................

Transmit Waveform Value For J1 0~655 ft ...................................................................

Transmit Waveform Value For DS1 0 dB LBO..............................................................

Transmit Waveform Value For DS1 -7.5 dB LBO .........................................................

Transmit Waveform Value For DS1 -15.0 dB LBO .......................................................

Transmit Waveform Value For DS1 -22.5 dB LBO .......................................................

Impedance Matching for Transmitter ............................................................................

Impedance Matching for Receiver ................................................................................

Criteria of Starting Speed Adjustment...........................................................................

LOS Declare and Clear Criteria for Short Haul Mode ...................................................

LOS Declare and Clear Criteria for Long Haul Mode....................................................

AIS Condition ................................................................................................................

Criteria for Setting/Clearing the PRBS_S Bit ................................................................

EXZ Definition ...............................................................................................................

Interrupt Event...............................................................................................................

Global Register List and Map........................................................................................

Per Channel Register List and Map ..............................................................................

ID: Chip Revision Register ............................................................................................

RST: Reset Register .....................................................................................................

GCF0: Global Configuration Register 0 ........................................................................

GCF1: Global Configuration Register 1 ........................................................................

INTCH: Interrupt Channel Indication Register...............................................................

GPIO: General Purpose IO Pin Definition Register.......................................................

JACF: Jitter Attenuator Configuration Register .............................................................

TCF0: Transmitter Configuration Register 0 .................................................................

TCF1: Transmitter Configuration Register 1 .................................................................

TCF2: Transmitter Configuration Register 2 .................................................................

TCF3: Transmitter Configuration Register 3 .................................................................

TCF4: Transmitter Configuration Register 4 .................................................................

RCF0: Receiver Configuration Register 0.....................................................................

RCF1: Receiver Configuration Register 1.....................................................................

RCF2: Receiver Configuration Register 2.....................................................................

MAINT0: Maintenance Function Control Register 0......................................................

IDT82V2088DR相似产品对比

	IDT82V2088DR	IDT82V2088	IDT82V2088BB
描述	OCTAL CHANNEL T1/E1/J1 LONG HAUL/ SHORT HAUL LINE INTERFACE UNIT	OCTAL CHANNEL T1/E1/J1 LONG HAUL/ SHORT HAUL LINE INTERFACE UNIT	OCTAL CHANNEL T1/E1/J1 LONG HAUL/ SHORT HAUL LINE INTERFACE UNIT

推荐资源

GPRS连接问题: 我用OPEN AT 已经建立完成了GPRS激活部分，但是为什么数据流中什么都收不到，在超级终端里使用ATD*99***1#,可以收到PPP包，如何使用OPEN AT ADL也能收到这些PPP包？请指教一二！我在软件里已经 ......; lockwe 嵌入式系统

MCS-51单片机定时器问题: MCS-51单片机中,采用12Mhz时钟,定时器T0采用模式1(16位计数器),请问在下面程序中,p1.0的输出频率？ MOV TMOD,#01H SETB TR0 LOOP:MOV TH0,#0B1H MOV TL0,#0E0H LOOP1:JNB TF0,LOO ......; yichi7758 嵌入式系统

【晒经典】五路继电器模块电路: 本帖最后由 dontium 于 2015-1-23 12:46 编辑继电器是一种电控制器件。它具有控制系统（又称输入回路）和被控制系统（又称输出回路）之间的互动关系。通常应用于自动化的控制电路中，它实际 ......; 37°男人模拟与混合信号

磁钉导航AGV小车的LIS2MDL阵列磁体位移数据采集: 本帖最后由 littleshrimp 于 2020-10-19 19:44 编辑 506409 9月30号买的磁铁，卖家地址填错发到了别的城市，补发后我17号才收到本来特地买了几个径向充磁的，收到后结果全者是轴 ......; littleshrimp ST传感器与低功耗无线技术论坛

国产蓝牙BLE芯片: 有没有做蓝牙ble芯片比较好的，价格便宜，做小电子产品用，欢迎推荐 ...; jiang4300 国产芯片交流

MSP430单片机GPIO编程技巧方法: 开发板上使用的MSP430x2xx器件，如MSP430G2553、MSP430G2231等。MSP430单片机上的大多数引脚被分组为最多8个端口， P1到P8。每个端口都是8位宽，并有8个相关的I / O引脚。这些引脚直接映射到相 ......; fish001 微控制器 MCU

通过串口利用printf函数输出数据

　　一。printf函数格式　　printf函数具有强大的输出功能　　%表示格式化字符串输出　　目前printf支持以下格式的输出，例如：　　printf( %c ,a);输出单个字符。　　printf( %d ,a);输出十进制整数。　　printf( %f ,a);输出十进制浮点数. 　　printf( %o ,a);输出八进制数。　　printf( %s ,a);输出字符串。...[详细]
小鹏汽车与芯联集成联合开发国内首个混合碳化硅产品实现量产

近日，小鹏汽车与芯联集成联合宣布，国内首个混合碳化硅产品已实现量产。该产品由小鹏汽车设计开发、芯联集成联合开发并量产落地。这一成果为提升新能源汽车的性能和降低成本开辟了新路径。碳化硅（SiC）材料因其卓越的物理特性，如更高的导热系数、击穿电压和开关速度，在功率半导体领域展现出巨大优势，成为推动新能源汽车技术进步和未来发展的关键方向。然而，较高的成本一直制约着碳化硅技术的广泛应用。...[详细]
嵌入式大佬给你分析stm32串口

　　stm32作为现在嵌入式物联网单片机行业中经常要用多的技术，相信大家都有所接触，今天这篇就给大家详细的分析下有关于stm32的出口，还不是很清楚的朋友要注意看看了哦，在最后还会为大家分享有些关于stm32的视频资料便于学习参考。　　什么是串口　　UART : Universal Asynchronous Receiver/Transmitter 通用异步收发器　　USART : Uni...[详细]
STM32单片机的学习方法（方法大体适用所有开发版入门）

1，一款实用的开发板。这个是实验的基础，有时候软件仿真通过了，在板上并不一定能跑起来，而且有个开发板在手，什么东西都可以直观的看到，效果不是仿真能比的。但开发板不宜多，多了的话连自己都不知道该学哪个了，觉得这个也还可以，那个也不错，那就这个学半天，那个学半天，结果学个四不像。倒不如从一而终，学完一个在学另外一个。 2，两本参考资料，即《STM32 参考手册》和《Cortex-M3 权威指南》。...[详细]
电动汽车以什么样的充电方式才是最合适的

电动汽车续航里程越来越长，普及率越来越高。电动汽车充电有两种方式慢充和快充,哪一种方式最合适呢？慢充，就是采用交流220V或三相380V（普通家用照明电源或动力电源）使用输出功率为5kW左右的充电器给电动汽车充电。快充就是利用充电桩进行直流充电，插头接电动汽车的直流充电口进行充电，根据充电桩的功率可达30KW~60KW。电动汽车是以电动机动力行驶的汽车，而车载蓄电池是为电动机提供电能的核心...[详细]
品英Pickering 助力用户在未来汽车测试中处于领先地位

2025中国国际汽车测试展将于2025年8月27-29日在上海世博展览馆举行 2025年8月 22 日，英国克莱克顿海滨 —— 易开发、易部署、高性能的电子测试/验证系统的领先制造商与服务商，模块化信号开关和信号仿真解决方案的全球供应商，英国Pickering集团将在2025年8月27-29日举办的2025中国国际汽车测试展(Automotive Testing Expo China)期间，...[详细]
单片机脚本语言-移植lua到stm32-MDK

Lua简单介绍 Lua 是一个小巧的脚本语言。作者是巴西人。该语言的设计目的是为了嵌入应用程序中，从而为应用程序提供灵活的扩展和定制功能。 Lua脚本能够非常easy的被C/C++ 代码调用，也能够反过来调用C/C++的函数，这使得Lua在应用程序中能够被广泛应用。不只作为扩展脚本，也能够作为普通的配置文件，取代XML,Ini等文件格式，而且更easy理解和维护。 Lua的目标是成为一个非常...[详细]
高频纯正弦波通信逆变器Rs232和Rs485通迅接口的差异

深圳宝威特电源高频纯正弦波电力，通信逆变电源有两个通迅接口，Rs232和R485接口，它们的功能和特点都有所不同。一、接口： 1.Rs232采取不平衡传输方式，即所谓单端通讯。而RS485则采用平衡传输，即差分传输方式。 2.Rs232 只允许一对一通信，而RS-485 接口在总线上是允许连接多达128个收发器。 3.Rs232被定义为一种在低速率串行通讯中增加通讯距离的单端标准。 4.R...[详细]
在车辆自燃方面，电动汽车和燃油汽车有什么不一样

说起车辆的自燃问题，无论是纯电动汽车还是燃油车，都会有自燃的事件出现，对于同样是自燃，电动汽车和燃油车汽车有哪些不一样？从车辆的特性上面来说，电动汽车自燃以动力电池等部件所引起，而燃油车的自燃以电路和油路故障等问题所引起，纯电动汽车来说，采用的是三元锂电池，随着动力电池的能量密度变高，电池内部电极变得活跃，一旦电池出现问题，便会留下安全隐患，加之电动汽车电池组数量多，采用叠加电池来实现，...[详细]
Intel首款机架级AI芯片！Jaguar Shores首秀曝光：用上HBM4+18A

8月21日消息，据报道，Intel正在开发的新一代AI芯片Jaguar Shores近日首次得到曝光。据Andreas Schilling分享的照片显示，Jaguar Shores测试平台目前被Intel的热工程团队使用，可能是为了研究合适的冷却方案。该芯片安装在一块开发板上，封装尺寸相当大，据称达到了92.5mm×92.5mm，这表明它是一个面向高性能计算（HPC）的平台。 Jagu...[详细]
探索当今TWS耳机的混合设计配置及OEM面临的工程挑战

消费者对高端聆听体验的需求推动无线耳机市场近年来快速迭代。混合设计在每只耳机中采用两种驱动单元，以提升音质、功能和佩戴舒适度。随着原始设备制造商（OEM）力求超越消费者预期并在市场中保持竞争力，这类设计正日益普及。真无线立体声（TWS）耳机领域正加速采用混合设计。混合方案的兴起促使 TWS 耳机经历重大技术重构，不仅影响制造商的产品架构，更为消费者带来显著优化的声音体验。本文将概述当今 T...[详细]
QNX推出QNX OS for Safety (QOS) 8.0，加速功能安全与网络信息安全关键型嵌入式系统的开发

全新版本助力开发者构建安全且可信赖的嵌入式系统中国上海 — 2025年8月21日 — BlackBerry有限公司旗下部门 QNX今日正式发布QNX® Operating System for Safety 8.0（以下简称 “QOS 8.0”）。这一经安全认证的基础性解决方案基于QNX® SDP 8.0的高性能、下一代微内核架构打造，可简化汽车、工业生产、机器人、医疗设备和国防等领域的...[详细]
stm32单片机时钟

1 引言：# 单片机（Microcontrollers），采用超大规模集成电路技术把具有数据处理能力的中央处理器CPU、随机存储器RAM、只读存储器ROM、多种I/O口和中断系统、定时器/计数器等功能（可能还包括显示驱动电路、脉宽调制电路、模拟多路转换器、A/D转换器等电路）集成到一块硅片上构成的一个小而完善的微型计算机系统，在工业控制领域广泛应用。单片机时钟可以说如同人的心脏那样重要，我们在...[详细]
可再生能源传输：先进铅碳储能系统有效改善电网的传输

导读: 传统上铅酸电池的作用基本上是提供后备电力，并且根据位置提供电力调节。在典型的应用中，电池的实际用途(放电)是非经常性的，它在大部份服务时间是处於浮充状态。关键字储能先进铅碳储能系统阀控式铅酸电池电网传输　　 1．引言传统上铅酸电池的作用基本上是提供后备电力，并且根据位置提供电力调节。在典型的应用中，电池的实际用途(放电)是非经常性的，它在大部份服务时间是处於浮充状态。然...[详细]
同负载同电压，接交流直流哪个电流大？

使用电子负载就像将其理解为用于消耗电源输出的消耗电阻。最直接的就是CR恒电阻模式。此时设置一个电阻值，电源输出电压和电流将按照一定比例(r=V/I)输出。然后是电子负载的 CC 和 CV 模式，在电源搭配方面通常是相反的。电源采用CV输出，负载采用CC模式消耗，电源采用CC，则电子负载采用CV; CV模式(恒压操作)从电源的角度来看，输出电压是恒定的。在最大功率范围内，电流由负载决定，...[详细]

器件捷径: 00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

热门器件

开源项目推荐更多

热门活动更多

热门文章更多

技术资料推荐更多