Datasheet> 器件分类 > 嵌入式处理器和控制器> 微控制器和处理器> 89C51CC01U-RLTUM

文档预览

89C51CC01U-RLTUM: 产品描述Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, PQFP44, VQFP-44; 产品类别嵌入式处理器和控制器微控制器和处理器; 文件大小1MB，共157页; 制造商Atmel (Microchip); 标准

下载文档详细参数选型对比全文预览文档解析

89C51CC01U-RLTUM概述

Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, PQFP44, VQFP-44

89C51CC01U-RLTUM规格参数

参数名称	属性值
是否无铅	不含铅
是否Rohs认证	符合
厂商名称	Atmel (Microchip)
零件包装代码	QFP
包装说明	LQFP,
针数	44
Reach Compliance Code	compliant
ECCN代码	3A991.A.2
具有ADC	YES
地址总线宽度	16
位大小	8
最大时钟频率	40 MHz
DAC 通道	NO
DMA 通道	NO
外部数据总线宽度	8
JESD-30 代码	S-PQFP-G44
JESD-609代码	e3
长度	10 mm
I/O 线路数量	34
端子数量	44
最高工作温度	85 °C
最低工作温度	-40 °C
PWM 通道	YES
封装主体材料	PLASTIC/EPOXY
封装代码	LQFP
封装形状	SQUARE
封装形式	FLATPACK, LOW PROFILE
峰值回流温度（摄氏度）	260
认证状态	Not Qualified
ROM可编程性	FLASH
座面最大高度	1.6 mm
速度	40 MHz
最大供电电压	5.5 V
最小供电电压	3 V
标称供电电压	5 V
表面贴装	YES
技术	CMOS
温度等级	INDUSTRIAL
端子面层	Matte Tin (Sn)
端子形式	GULL WING
端子节距	0.8 mm
端子位置	QUAD
处于峰值回流温度下的最长时间	40
宽度	10 mm
uPs/uCs/外围集成电路类型	MICROCONTROLLER

文档解析

在设计基于T89C51CC01的系统时，考虑电源管理以优化性能和功耗主要可以从以下几个方面入手：

选择合适的电源电压：T89C51CC01的电源电压范围是5V ± 10%（或3V ± 10%）。根据应用需求选择适当的电源电压，可以确保芯片在最佳状态下工作，同时满足功耗和性能的要求。
使用X2模式：T89C51CC01支持X2模式，该模式下CPU只需要6个时钟周期来完成一个机器周期，而标准模式需要12个。这可以减少时钟频率，从而降低功耗，同时保持CPU的处理能力。
利用空闲模式和掉电模式：
- 空闲模式（Idle Mode）：在这种模式下，CPU的时钟被冻结，但外设仍然可以被时钟驱动。这可以在不需要处理数据时减少CPU的功耗。
- 掉电模式（Power-Down Mode）：在这种模式下，振荡器停止工作，所有时钟都被冻结，以达到最低的功耗状态。在这种模式下，系统可以在外部中断或复位信号下唤醒。
合理配置中断和唤醒源：通过配置外部中断和定时器中断，可以在需要时唤醒系统，执行必要的任务，然后再次进入低功耗模式。
优化时钟和外设配置：根据系统需求，合理配置时钟源和外设的工作模式，如UART、PCA、CAN等，确保它们在不需要时不会消耗额外的功耗。
使用硬件安全字节：通过编程硬件安全字节（如X2B位），可以在系统复位后直接进入X2模式，减少启动时间并降低功耗。
考虑电源波动和电源监控：为了防止电源波动对系统稳定性造成影响，可以使用外部复位电路，并监控电源电压，确保在电源不稳定时系统能够正确复位。
软件优化：在软件层面，可以通过优化任务调度、减少不必要的CPU活动和使用低功耗的软件算法来进一步降低功耗。

通过上述措施，可以有效地管理T89C51CC01的电源，实现性能和功耗的优化平衡。

文档预览

下载PDF文档

全文
预览

Features

•

80C51 Core Architecture

256 Bytes of On-chip RAM

1K Bytes of On-chip ERAM

32K Bytes of On-chip Flash Memory

– Data Retention: 10 Years at 85°C

Read/Write Cycle: 10K

2K Bytes of On-chip Flash for Bootloader

2K Bytes of On-chip EEPROM

Read/Write Cycle: 100K

14-sources 4-level Interrupts

Three 16-bit Timers/Counters

Full Duplex UART Compatible 80C51

Maximum Crystal Frequency 40 MHz

– In X2 Mode, 20 MHz (CPU Core, 40 MHz)

Five Ports: 32 + 2 Digital I/O Lines

Five-channel 16-bit PCA with:

– PWM (8-bit)

– High-speed Output

– Timer and Edge Capture

Double Data Pointer

21-bit WatchDog Timer (7 Programmable Bits)

A 10-bit Resolution Analog to Digital Converter (ADC) with 8 Multiplexed Inputs

Full CAN Controller:

– Fully Compliant with CAN Rev2.0A and 2.0B

– Optimized Structure for Communication Management (Via SFR)

– 15 Independent Message Objects:

– Each Message Object Programmable on Transmission or Reception

– Individual Tag and Mask Filters up to 29-bit Identifier/Channel

– 8-byte Cyclic Data Register (FIFO)/Message Object

– 16-bit Status and Control Register/Message Object

– 16-bit Time-Stamping Register/Message Object

– CAN Specification 2.0 Part A or 2.0 Part B Programmable for Each Message

Object

– Access to Message Object Control and Data Registers Via SFR

– Programmable Reception Buffer Length Up To 15 Message Objects

– Priority Management of Reception of Hits on Several Message Objects at the

Same Time (Basic CAN Feature)

– Priority Management for Transmission

– Message Object Overrun Interrupt

– Supports:

– Time Triggered Communication

– Autobaud and Listening Mode

– Programmable Automatic Reply Mode

– 1-Mbit/s Maximum Transfer Rate at 8 MHz

(1)

Crystal Frequency in X2 Mode

– Readable Error Counters

– Programmable Link to On-chip Timer for Time Stamping and Network

Synchronization

– Independent Baud Rate Prescaler

– Data, Remote, Error and Overload Frame Handling

On-chip Emulation Logic (Enhanced Hook System)

Power Saving Modes:

– Idle Mode

– Power-down Mode

Enhanced 8-bit

MCU with CAN

Controller and

Flash Memory

•

T89C51CC01

•

At BRP = 1 sampling point will be fixed.

Rev. 4129E–8051–03/02

T89C51CC01

Table 1.

Pin Description

Pin Name

VSS

VCC

VAREF

VAGND

P0.0:7

I/O

Type

GND

Description

Circuit ground

Supply Voltage

Reference Voltage for ADC

Reference Ground for ADC

Port 0:

Is an 8-bit open drain bi-directional I/O port. Port 0 pins that have 1’s written to them float, and in this state can be used as

high-impedance inputs. Port 0 is also the multiplexed low-order address and data bus during accesses to external Program

and Data Memory. In this application it uses strong internal pull-ups when emitting 1’s.

Port 0 also outputs the code Bytes during program validation. External pull-ups are required during program verification.

Port 1:

Is an 8-bit bi-directional I/O port with internal pull-ups. Port 1 pins can be used for digital input/output or as analog inputs for

the Analog Digital Converter (ADC). Port 1 pins that have 1’s written to them are pulled high by the internal pull-up transistors

and can be used as inputs in this state. As inputs, Port 1 pins that are being pulled low externally will be the source of current

, see section "Electrical Characteristic") because of the internal pull-ups. Port 1 pins are assigned to be used as analog

inputs via the ADCCF register (in this case the internal pull-ups are disconnected).

As a secondary digital function, port 1 contains the Timer 2 external trigger and clock input; the PCA external clock input and

the PCA module I/O.

P1.0/AN0/T2

Analog input channel 0,

External clock input for Timer/counter2.

P1.1/AN1/T2EX

Analog input channel 1,

Trigger input for Timer/counter2.

P1.2/AN2/ECI

Analog input channel 2,

PCA external clock input.

P1.3/AN3/CEX0

Analog input channel 3,

PCA module 0 Entry of input/PWM output.

P1.4/AN4/CEX1

Analog input channel 4,

PCA module 1 Entry of input/PWM output.

P1.5/AN5/CEX2

Analog input channel 5,

PCA module 2 Entry of input/PWM output.

P1.6/AN6/CEX3

Analog input channel 6,

PCA module 3 Entry of input/PWM output.

P1.7/AN7/CEX4

Analog input channel 7,

PCA module 4 Entry ot input/PWM output.

Port 1 receives the low-order address byte during EPROM programming and program verification.

It can drive CMOS inputs without external pull-ups.

P2.0:7

I/O

Port 2:

Is an 8-bit bi-directional I/O port with internal pull-ups. Port 2 pins that have 1’s written to them are pulled high by the internal

pull-ups and can be used as inputs in this state. As inputs, Port 2 pins that are being pulled low externally will be a source of

current (I

, see section "Electrical Characteristic") because of the internal pull-ups. Port 2 emits the high-order address byte

during accesses to the external Program Memory and during accesses to external Data Memory that uses 16-bit addresses

(MOVX @DPTR). In this application, it uses strong internal pull-ups when emitting 1’s. During accesses to external Data

Memory that use 8 bit addresses (MOVX @Ri), Port 2 transmits the contents of the P2 special function register.

It also receives high-order addresses and control signals during program validation.

It can drive CMOS inputs without external pull-ups.

P1.0:7

I/O

4129E–8051–03/02

89C51CC01U-RLTUM相似产品对比

	89C51CC01U-RLTUM	89C51CC01C-SLSUM	89C51CC01U-SLSUM	89C51CC01U-7CTUM
描述	Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, PQFP44, VQFP-44	Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, PQCC44, PLASTIC, LCC-44	Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, PQCC44, PLASTIC, LCC-44	Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, PBGA64, CA-BGA-64
是否无铅	不含铅	不含铅	不含铅	不含铅
是否Rohs认证	符合	符合	符合	符合
厂商名称	Atmel (Microchip)	Atmel (Microchip)	Atmel (Microchip)	Atmel (Microchip)
零件包装代码	QFP	LCC	LCC	BGA
包装说明	LQFP,	QCCJ,	QCCJ,	LFBGA,
针数	44	44	44	64
Reach Compliance Code	compliant	compliant	compliant	compliant
ECCN代码	3A991.A.2	3A991.A.2	3A991.A.2	3A991.A.2
具有ADC	YES	YES	YES	YES
地址总线宽度	16	16	16	16
位大小	8	8	8	8
最大时钟频率	40 MHz	40 MHz	40 MHz	40 MHz
DAC 通道	NO	NO	NO	NO
DMA 通道	NO	NO	NO	NO
外部数据总线宽度	8	8	8	8
JESD-30 代码	S-PQFP-G44	S-PQCC-J44	S-PQCC-J44	S-PBGA-B64
JESD-609代码	e3	e3	e3	e1
长度	10 mm	16.5481 mm	16.5481 mm	8 mm
I/O 线路数量	34	34	34	34
端子数量	44	44	44	64
最高工作温度	85 °C	85 °C	85 °C	85 °C
最低工作温度	-40 °C	-40 °C	-40 °C	-40 °C
PWM 通道	YES	YES	YES	YES
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	LQFP	QCCJ	QCCJ	LFBGA
封装形状	SQUARE	SQUARE	SQUARE	SQUARE
封装形式	FLATPACK, LOW PROFILE	CHIP CARRIER	CHIP CARRIER	GRID ARRAY, LOW PROFILE, FINE PITCH
峰值回流温度（摄氏度）	260	245	245	260
认证状态	Not Qualified	Not Qualified	Not Qualified	Not Qualified
ROM可编程性	FLASH	FLASH	FLASH	FLASH
座面最大高度	1.6 mm	4.57 mm	4.57 mm	1.5 mm
速度	40 MHz	40 MHz	40 MHz	40 MHz
最大供电电压	5.5 V	5.5 V	5.5 V	5.5 V
最小供电电压	3 V	3 V	3 V	3 V
标称供电电压	5 V	5 V	5 V	5 V
表面贴装	YES	YES	YES	YES
技术	CMOS	CMOS	CMOS	CMOS
温度等级	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
端子面层	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Tin/Silver/Copper (Sn/Ag/Cu)
端子形式	GULL WING	J BEND	J BEND	BALL
端子节距	0.8 mm	1.27 mm	1.27 mm	0.8 mm
端子位置	QUAD	QUAD	QUAD	BOTTOM
处于峰值回流温度下的最长时间	40	40	40	40
宽度	10 mm	16.5481 mm	16.5481 mm	8 mm
uPs/uCs/外围集成电路类型	MICROCONTROLLER	MICROCONTROLLER	MICROCONTROLLER	MICROCONTROLLER
Base Number Matches	-	1	1	1

89C51CC01U-RLTUM

89C51CC01U-RLTUM概述

89C51CC01U-RLTUM规格参数

文档解析

文档预览

89C51CC01U-RLTUM相似产品对比

推荐资源