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74ACT161SC

更新时间： 2024-11-14 05:05:47

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		计数器
页数	文件大小	规格书
13页	336K
描述
Synchronous Presettable Binary Counter

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中文翻译

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数据手册

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74ACT161SC 数据手册

74ACT161

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

■

HIGH SPEED:

_MAX= 290MHz (TYP.) at V_CC= 5V

LOW POWER DISSIPATION:

_CC= 8µA(MAX.) at T_A=25°C

COMPATIBLE WITH TTL OUTPUTS

V_IH= 2V (MIN.), V_IL= 0.8V (MAX.)

50Ω TRANSMISSION LINE DRIVING

CAPABILITY

SYMMETRICAL OUTPUT IMPEDANCE:

|I_OH| = I_OL= 24mA (MIN)

BALANCED PROPAGATION DELAYS:

t_PLHt_PHL

DIP

SOP

TSSOP

T & R

ORDER CODES

PACKAGE

TUBE

DIP

SOP

74ACT161B

74ACT161M

OPERATING VOLTAGE RANGE:

74ACT161MTR

74ACT161TTR

_CC(OPR) = 4.5V to 5.5V

TSSOP

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 161

IMPROVED LATCH-UP IMMUNITY

counting and allows information on Parallel Data

inputs to be loaded into the flip-flop on the next

rising edge of CLOCK. With LOAD and CLEAR

HIGH, PE and TE permit counting when both are

HIGH. Conversely, a LOW signal on either PE and

TE inhibits counting.

The CARRY OUTPUT is HIGH when TE is HIGH

and counter is in state 15.

The device is designed to interface directly High

Speed CMOS systems with TTL, NMOS and

CMOS output voltage levels.

DESCRIPTION

The 74ACT161 is an advanced high-speed CMOS

SYNCRONOUS PRESETTABLE COUNTER

fabricated with sub-micron silicon gate and

double-layer metal wiring C²MOS tecnology. It is a

4 bit binary counter with Asynchronous Clear.

The circuit have four fundamental modes of

operation, in order of preference: synchronous

reset, parallel load, count-up and hold. Four

control inputs, (CLEAR), (LOAD), (PE) and (TE),

determine the mode of operation as shown in the

Truth Table. A LOW signal on CLEAR overrides

counting and parallel loading and sets all outputs

on LOW state. A LOW signal on LOAD overrides

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

April 2001

1/13

12 3 4 5 6 7...13

中文翻译

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与74ACT161SC相关器件

型号	品牌	获取价格	描述	数据表
74ACT161SC_NL	STMICROELECTRONICS	获取价格	Binary Counter, ACT Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMO
74ACT161SCQR	ETC	获取价格	Synchronous Up Counter
74ACT161SCT	STMICROELECTRONICS	获取价格	Binary Counter, ACT Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMO
74ACT161SCTR	STMICROELECTRONICS	获取价格	Binary Counter, ACT Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMO
74ACT161SCX	FAIRCHILD	获取价格	Synchronous Up Counter
74ACT161SCX_NL	FAIRCHILD	获取价格	Binary Counter, ACT Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMO
74ACT161SCXR	STMICROELECTRONICS	获取价格	暂无描述
74ACT161SJ	FAIRCHILD	获取价格	Synchronous Presettable Binary Counter
74ACT161SJ	STMICROELECTRONICS	获取价格	Synchronous Presettable Binary Counter
74ACT161SJX	FAIRCHILD	获取价格	Synchronous Up Counter