Product Summary

The 74HC4538D is a dual retriggerable precision monostable multivibrator. The 74HC4538D is a high-speed Si-gate CMOS device. It is specified in compliance with JEDEC standard no. 7A. The 74HC4538D is dual retriggerable-resettable monostable multivibrator. Each multivibrator has an active LOW trigger/retrigger input (nA0), an active HIGH trigger/retrigger input (nA1) , an overriding active LOW direct reset input (nRD), an output (nQ) and its complement (nQ), and two pins (nCTC and nRCTC) for connecting the external timing components Ct and Rt. Typical pulse width variation over temperature range is ± 0.2%.

Parametrics

74HC4538D absolute maximum ratings: (1)tPHL/ tPLH propagation delay: 30 ns; (2)CI input capacitance: 3.5pF; (3)CPD power dissipation capacitance per multivibrator: 138pF; (4)trt retrigger time: 455+Xns, 2.0V; (5)REXT external timing resistor: 10 to 1000kΩ, 2.0V; (6)CEXT external timing capacitor: no limits, 5.0V.

Features

74HC4538D features: (1) Separate reset inputs; (2) Triggering from leading or trailing edge; (3) Output capability: standard; (4) ICC category: MSI; (5) Power-on reset on-chip.

Diagrams

74HC4538D Pin Configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
74HC4538D
74HC4538D

NXP Semiconductors

Monostable Multivibrator DUAL MONO RETRIG PRECISION

Data Sheet

Negotiable 
74HC4538D,652
74HC4538D,652

NXP Semiconductors

Monostable Multivibrator DUAL MONO RETRIG

Data Sheet

0-1: $0.13
1-25: $0.12
25-100: $0.12
100-250: $0.11
74HC4538DB,118
74HC4538DB,118

NXP Semiconductors

Monostable Multivibrator DUAL RETRIG PRECSION

Data Sheet

0-1: $0.37
1-25: $0.34
25-100: $0.28
100-250: $0.26
74HC4538DB,112
74HC4538DB,112

NXP Semiconductors

Monostable Multivibrator DUAL RETRIG PRECSION

Data Sheet

0-1: $0.64
1-25: $0.51
25-100: $0.45
100-250: $0.39
74HC4538D,653
74HC4538D,653

NXP Semiconductors

Monostable Multivibrator DUAL RETRIG PRECISION MONOSTAT

Data Sheet

0-1: $0.14
1-25: $0.13
25-100: $0.12
100-250: $0.11
74HC4538DB
74HC4538DB

NXP Semiconductors

Monostable Multivibrator DUAL RETRIG PRECSION MONOSTAB

Data Sheet

Negotiable 
74HC4538DB-T
74HC4538DB-T

NXP Semiconductors

Monostable Multivibrator DUAL RETRIG PRECSION MONOSTAB

Data Sheet

Negotiable