Datasheet > 74HC4538D

74HC4538D

更新时间： 2024-11-25 11:10:11

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安世 - NEXPERIA		/
页数	文件大小	规格书
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描述
Dual retriggerable precision monostable multivibratorProduction

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74HC4538D 数据手册

74HC4538

Dual retriggerable precision monostable multivibrator

Rev. 6 — 16 July 2021

Product data sheet

1. General description

The 74HC4538 is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has

two trigger/retrigger inputs (nA and nB), a direct reset input (nCD), two complementary outputs (nQ

and nQ), and two pins (nREXT/CEXT and nCEXT) for connecting the external timing components

C_EXTand R_EXT. Typical pulse width variation over temperature range is ± 0.2 %. The device

may be triggered by either the positive or the negative edges of the input pulse. The duration

and accuracy of the output pulse are determined by the external timing components C_EXTand

R_EXT. The output pulse width (T_W) is equal to 0.7 × R_EXT× C_EXT. The linear design techniques

guarantee precise control of the output pulse width. A LOW level at nCD terminates the output

pulse immediately. Schmitt-trigger action in the trigger inputs makes the circuit highly tolerant to

slower rise and fall times. Inputs include clamp diodes. This enables the use of current limiting

resistors to interface inputs to voltages in excess of V_CC

2. Features and benefits

•

Wide supply voltage range from 2.0 to 6.0 V

•

CMOS low power dissipation

CMOS input levels

High noise immunity

Tolerant of slow trigger rise and fall times

Separate reset inputs

Triggering from falling or rising edge

Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

Complies with JEDEC standards

•

JESD8C (2.7 V to 3.6 V)

JESD7A (2.0 V to 6.0 V)

•

ESD protection:

•

HBM JESD22-A114F exceeds 2000 V

MM JESD22-A115-A exceeds 200 V

Specified from -40 °C to +85 °C and from -40 °C to +125 °C

3. Ordering information

Table 1. Ordering information

Type number

Package

Temperature range Name

Description

Version

74HC4538D

-40 °C to +125 °C

SO16

plastic small outline package; 16 leads; body width 3.9 mm SOT109-1

74HC4538PW -40 °C to +125 °C

TSSOP16 plastic thin shrink small outline package; 16 leads;

body width 4.4 mm

SOT403-1

12 3 4 5 6 7...17

中文翻译

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74HC4538D 替代型号

型号	品牌	替代类型	描述	数据表
HEF4538BT,653	NXP	功能相似	HEF4538B - Dual precision monostable multivibrator SOP 16-Pin
74VHC123AM	FAIRCHILD	功能相似	Dual Retriggerable Monostable Multivibrator

与74HC4538D相关器件

型号	品牌	获取价格	描述	数据表
74HC4538D/T3	NXP	获取价格	IC HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16, PLASTIC, SOP-16, Prescaler/Multivi
74HC4538DB	NXP	获取价格	Dual retriggerable precision monostable multivibrator
74HC4538DB,112	NXP	获取价格	74HC(T)4538 - Dual retriggerable precision monostable multivibrator SSOP1 16-Pin
74HC4538DB,118	NXP	获取价格	74HC(T)4538 - Dual retriggerable precision monostable multivibrator SSOP1 16-Pin
74HC4538DB-T	NXP	获取价格	暂无描述
74HC4538D-Q100	NXP	获取价格	HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16, 3.90 MM, PLASTIC, MS-012, SOT109-1, S
74HC4538D-Q100	NEXPERIA	获取价格	Dual retriggerable precision monostable multivibrator
74HC4538D-T	ETC	获取价格	Monostable Multivibrator
74HC4538FT	TOSHIBA	获取价格	Dual Monostable Multivibrator, TSSOP16B
74HC4538N	NXP	获取价格	Dual retriggerable precision monostable multivibrator

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