Datasheet > M54HCT137

M54HCT137

更新时间： 2024-09-26 22:57:55

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		锁存器
页数	文件大小	规格书
12页	262K
描述
3 TO 8 LINE DECODER/LATCH INVERTING

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中文翻译

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M54HCT137 数据手册

M54HCT137

M74HCT137

3 TO 8 LINE DECODER/LATCH (INVERTING)

HIGH SPEED

_PD= 17 ns (TYP.) AT V_CC= 5 V

LOW POWER DISSIPATION

I_CC= 4 µA (MAX.) AT T_A= 25 °C

COMPATIBLE WITH TTL OUTPUTS

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

OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

SYMMETRICAL OUTPUT IMPEDANCE

IOH = I_OL= 4 mA (MIN.)

BALANCED PROPAGATION DELAYS

t_PLH= t_PHL

B1R

(Plastic Package)

F1R

(Ceramic Package)

PIN AND FUNCTION COMPATIBLE

WITH 54/74LS137

M1R

(Micro Package)

C1R

(Chip Carrier)

DESCRIPTION

ORDER CODES :

The M54/74HCT137 is a high speed CMOS3TO8LINE

DECODER/LATCH (INVERTING) fabricated in silicon

gateC²MOStechnology. Ithas the samehigh speed per-

formance ofLSTTL combined with trueCMOSlow power

consumption. This device is a 3 to 8 line decoder with lat-

ches on the three address inputs. When GL goes from low

to high, the address present at the select inputs (A, B and

C) is stored in the latches. As long as GL remains high no

address changes will be recognized. Output enable pins

G1 and G2, control the state of the outputs independently

ofthe select orlatch-enable inputs. All theoutputs are high

unless G1 is high and G2 is low. The HC137 is ideally

suited for the implementation of glitch-free decoders in

stored-address applications in bus oriented systems. All

inputs are equipped with protection circuits against static

discharge and transient excess voltage.This integrated

circuit has input and output characteristics that are fully

compatible with 54/74 LSTTL logic families. M54/74HCT

devices aredesigned todirectly interfaceHSC²MOS sys-

temswithTTL and NMOScomponents. They arealso

plug in replacements for LSTTL devices giving a re-

duction of power consumption.

M54HCT137F1R

M74HCT137B1R

M74HCT137M1R

M74HCT137C1R

PIN CONNECTIONS (top view)

INPUT AND OUTPUT EQUIVALENT CIRCUIT

NC =

No Internal

Connection

February 1993

1/12

12 3 4 5 6 7...12

中文翻译

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与M54HCT137相关器件

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