74HCT4538PW,118 datasheet, PDF

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74HCT4538PW,118: Descriptionmonostable multivibrator dual retrig precsion monostab; Categorylogic logic; File Size143KB，24 Pages; ManufacturerNXP; Websitehttps://www.nxp.com; Environmental Compliance

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74HCT4538PW,118 Overview

monostable multivibrator dual retrig precsion monostab

74HCT4538PW,118 Parametric

Parameter Name	Attribute value
Brand Name	NXP Semiconductor
Is it Rohs certified?	conform to
Maker	NXP
Parts packaging code	TSSOP
package instruction	PLASTIC, TSSOP-16
Contacts	16
Manufacturer packaging code	SOT403-1
Reach Compliance Code	compliant
Other features	RETRIGGERABLE
series	HCT
JESD-30 code	R-PDSO-G16
JESD-609 code	e4
length	5 mm
Load capacitance (CL)	50 pF
Logic integrated circuit type	MONOSTABLE MULTIVIBRATOR
Humidity sensitivity level	1
Number of data/clock inputs	2
Number of functions	2
Number of terminals	16
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Output polarity	COMPLEMENTARY
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TSSOP16,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	5 V
propagation delay (tpd)	90 ns
Certification status	Not Qualified
Maximum seat height	1.1 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	AUTOMOTIVE
Terminal surface	NICKEL PALLADIUM GOLD
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	4.4 mm
Base Number Matches	1

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74HC4538; 74HCT4538

Dual retriggerable precision monostable multivibrator

Rev. 03 — 8 June 2009

Product data sheet

1. General description

The 74HC4538; 74HCT4538 are high-speed Si-gate CMOS devices and are pin

compatible with Low-power Schottky TTL (LSTTL). They are speciﬁed in compliance with

JEDEC standard no. 7A.

The 74HC4538; 74HCT4538 are dual retriggerable-resettable monostable multivibrators.

Each multivibrator has an active LOW trigger/retrigger input (nA), an active HIGH

trigger/retrigger input (nB), an overriding active LOW direct reset input (nCD), an output

(nQ) and its complement (nQ), and two pins (nREXT/CEXT and nCEXT) for connecting

the external timing components C

EXT

and R

EXT

. Typical pulse width variation over the

speciﬁed temperature range is

±0.2

The multivibrator 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

EXT

and R

EXT

. The output pulse width (t

) is equal to

0.7

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 on pins nA and nB makes the circuit highly tolerant of slower rise and fall times.

2. Features

Tolerant of slow trigger rise and fall times

Separate reset inputs

Triggering from falling or rising edge

Multiple package options

ESD protection:

HBM JESD22-A114E exceeds 2000 V

MM JESD22-A115-A exceeds 200 V

Speciﬁed from

−40 °C

to +85

°C

and from

−40 °C

to +125

°C

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