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74LVC161BQ

产品描述Binary Counter, LVC/LCX/Z Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PQCC16
产品类别逻辑    逻辑   
文件大小156KB,共22页
制造商Nexperia
官网地址https://www.nexperia.com
标准
下载文档 详细参数 选型对比 全文预览

74LVC161BQ概述

Binary Counter, LVC/LCX/Z Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PQCC16

74LVC161BQ规格参数

参数名称属性值
是否Rohs认证符合
厂商名称Nexperia
包装说明HVQCCN,
Reach Compliance Codecompliant
计数方向UP
系列LVC/LCX/Z
JESD-30 代码R-PQCC-N16
JESD-609代码e4
长度3.5 mm
负载/预设输入YES
逻辑集成电路类型BINARY COUNTER
工作模式SYNCHRONOUS
湿度敏感等级1
位数4
功能数量1
端子数量16
最高工作温度125 °C
最低工作温度-40 °C
封装主体材料PLASTIC/EPOXY
封装代码HVQCCN
封装形状RECTANGULAR
封装形式CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度)260
传播延迟(tpd)9.5 ns
认证状态Not Qualified
座面最大高度1 mm
最大供电电压 (Vsup)3.6 V
最小供电电压 (Vsup)1.2 V
标称供电电压 (Vsup)2.7 V
表面贴装YES
技术CMOS
温度等级AUTOMOTIVE
端子面层Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式NO LEAD
端子节距0.5 mm
端子位置QUAD
处于峰值回流温度下的最长时间30
触发器类型POSITIVE EDGE
宽度2.5 mm
最小 fmax150 MHz
Base Number Matches1

文档预览

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74LVC161
Presettable synchronous 4-bit binary counter; asynchronous
reset
Rev. 6 — 30 September 2013
Product data sheet
1. General description
The 74LVC161 is a synchronous presettable binary counter which features an internal
look-ahead carry and can be used for high-speed counting. Synchronous operation is
provided by having all flip-flops clocked simultaneously on the positive-going edge of the
clock (pin CP). The outputs (pins Q0 to Q3) of the counters may be preset to a HIGH-level
or LOW-level. A LOW-level at the parallel enable input (pin PE) disables the counting
action and causes the data at the data inputs (pins D0 to D3) to be loaded into the counter
on the positive-going edge of the clock (provided that the set-up and hold time
requirements for PE are met). Preset takes place regardless of the levels at count enable
inputs (pins CEP and CET). A LOW-level at the master reset input (pin MR) sets all four
outputs of the flip-flops (pins Q0 to Q3) to LOW-level regardless of the levels at input pins
CP, PE, CET and CEP (thus providing an asynchronous clear function).
The look-ahead carry simplifies serial cascading of the counters. Both count enable inputs
(pin CEP and CET) must be HIGH to count. The CET input is fed forward to enable the
terminal count output (pin TC). The TC output thus enabled will produce a HIGH output
pulse of a duration approximately equal to a HIGH-level output of Q0. This pulse can be
used to enable the next cascaded stage.
The maximum clock frequency for the cascaded counters is determined by t
PHL
(propagation delay CP to TC) and t
su
(set-up time CEP to CP) according to the formula:
1
f
max
=
-----------------------------------
t
PHL
max
+
t
su
It is a high-performance, low-power, low-voltage, Si-gate CMOS device and superior to
most advanced CMOS compatible TTL families.
2. Features and benefits
5 V tolerant inputs for interfacing with 5 V logic
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low power consumption
Direct interface with TTL levels
Asynchronous reset
Synchronous counting and loading
Two count enable inputs for n-bit cascading
Positive edge-triggered clock
Complies with JEDEC standard:
JESD8-7A (1.65 V to 1.95 V)
JESD8-5A (2.3 V to 2.7 V)

74LVC161BQ相似产品对比

74LVC161BQ 935275612115 74LVC161DB 74LVC161PW 74LVC161D
描述 Binary Counter, LVC/LCX/Z Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PQCC16 Binary Counter, LVC/LCX/Z Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PQCC16 Binary Counter, LVC/LCX/Z Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16 Binary Counter, LVC/LCX/Z Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16 Binary Counter, LVC/LCX/Z Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16
是否Rohs认证 符合 符合 符合 符合 符合
厂商名称 Nexperia Nexperia Nexperia Nexperia Nexperia
包装说明 HVQCCN, HVQCCN, SSOP, TSSOP, SOP,
Reach Compliance Code compliant compliant compliant compliant compliant
计数方向 UP UP UP UP UP
系列 LVC/LCX/Z LVC/LCX/Z LVC/LCX/Z LVC/LCX/Z LVC/LCX/Z
JESD-30 代码 R-PQCC-N16 R-PQCC-N16 R-PDSO-G16 R-PDSO-G16 R-PDSO-G16
JESD-609代码 e4 e4 e4 e4 e4
长度 3.5 mm 3.5 mm 6.2 mm 5 mm 9.9 mm
负载/预设输入 YES YES YES YES YES
逻辑集成电路类型 BINARY COUNTER BINARY COUNTER BINARY COUNTER BINARY COUNTER BINARY COUNTER
工作模式 SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS
湿度敏感等级 1 1 1 1 1
位数 4 4 4 4 4
功能数量 1 1 1 1 1
端子数量 16 16 16 16 16
最高工作温度 125 °C 125 °C 125 °C 125 °C 125 °C
最低工作温度 -40 °C -40 °C -40 °C -40 °C -40 °C
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 HVQCCN HVQCCN SSOP TSSOP SOP
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE
传播延迟(tpd) 9.5 ns 9.5 ns 9.5 ns 9.5 ns 9.5 ns
座面最大高度 1 mm 1 mm 2 mm 1.1 mm 1.75 mm
最大供电电压 (Vsup) 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V
最小供电电压 (Vsup) 1.2 V 1.2 V 1.2 V 1.2 V 1.2 V
标称供电电压 (Vsup) 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V
表面贴装 YES YES YES YES YES
技术 CMOS CMOS CMOS CMOS CMOS
温度等级 AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
端子面层 Nickel/Palladium/Gold (Ni/Pd/Au) Nickel/Palladium/Gold (Ni/Pd/Au) Nickel/Palladium/Gold (Ni/Pd/Au) Nickel/Palladium/Gold (Ni/Pd/Au) Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式 NO LEAD NO LEAD GULL WING GULL WING GULL WING
端子节距 0.5 mm 0.5 mm 0.65 mm 0.65 mm 1.27 mm
端子位置 QUAD QUAD DUAL DUAL DUAL
触发器类型 POSITIVE EDGE POSITIVE EDGE POSITIVE EDGE POSITIVE EDGE POSITIVE EDGE
宽度 2.5 mm 2.5 mm 5.3 mm 4.4 mm 3.9 mm
最小 fmax 150 MHz 150 MHz 150 MHz 150 MHz 150 MHz
Base Number Matches 1 1 1 1 1
峰值回流温度(摄氏度) 260 - 260 260 260
认证状态 Not Qualified - Not Qualified Not Qualified Not Qualified
处于峰值回流温度下的最长时间 30 - 30 30 30
其他特性 - - TCO OUTPUT TCO OUTPUT TCO OUTPUT
负载电容(CL) - - 50 pF 50 pF 50 pF
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