m74hc242b1r STMicroelectronics, m74hc242b1r Datasheet

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m74hc242b1r

Manufacturer Part Number
m74hc242b1r
Description
Quad Transceiver 3-state
Manufacturer
STMicroelectronics
Datasheet
DESCRIPTION
The M74HC242 is an high speed CMOS QUAD
BUS TRANSCEIVER (3-STATE) fabricated with
silicon gate C
The M74HC242 is a 3-state bidirectional inverting
buffer and is intended for two way asynchronous
communication between data buses. It has high
drive current outputs which enable high speed
PIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
HIGH SPEED:
t
LOW POWER DISSIPATION:
I
HIGH NOISE IMMUNITY:
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
WIDE OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 242
PD
CC
PLH
OH
NIH
CC
= 11ns (TYP.) at V
= 4 A(MAX.) at T
| = I
(OPR) = 2V to 6V
= V
t
PHL
OL
NIL
= 6mA (MIN)
2
MOS technology.
= 28 % V
A
CC
CC
=25°C
(MIN.)
= 6V
QUAD BUS TRANSCEIVER (3 - STATE)
ORDER CODES
operation when driving large bus capacitance.
The device has one active high enable (GBA), and
one active low enable (GAB).
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PACKAGE
TSSOP
SOP
DIP
DIP
M74HC242M1R
M74HC242B1R
TUBE
SOP
M74HC242
M74HC242RM13TR
M74HC242TTR
T & R
TSSOP
1/11

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m74hc242b1r Summary of contents

Page 1

... The device has one active high enable (GBA), and one active low enable (GAB). All inputs are equipped with protection circuits against static discharge and transient excess voltage. M74HC242 SOP TSSOP TUBE T & R M74HC242B1R M74HC242M1R M74HC242RM13TR M74HC242TTR 1/11 ...

Page 2

M74HC242 INPUT AND OUTPUT EQUIVALENT CIRCUIT LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays 2/11 PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION Output Enable Input 1 GAB (Active LOW Not Connected ...

Page 3

ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Current ...

Page 4

M74HC242 DC SPECIFICATIONS Symbol Parameter V V High Level Input IH Voltage V Low Level Input IL Voltage V High Level Output OH Voltage V Low Level Output OL Voltage I Input Leakage I Current I High Impedance OZ Output ...

Page 5

AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH PHL Time t t High Impedance PZL PZH Output Enable Time t t High Impedance PLZ PHZ Output Disable Time CAPACITIVE ...

Page 6

M74HC242 TEST CIRCUIT PLH PHL PZL PLZ PZH PHZ C = 50pF/150pF or equivalent (includes jig and probe capacitance equivalent pulse ...

Page 7

WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIME(f=1MHz; 50% duty cycle) M74HC242 7/11 ...

Page 8

M74HC242 DIM. MIN. a1 0. 1.27 8/11 Plastic DIP-14 MECHANICAL DATA mm. TYP MAX. 1.65 0.5 0.25 20 8.5 2.54 15.24 7.1 5.1 3.3 2.54 inch MIN. TYP. ...

Page 9

SO-14 MECHANICAL DATA mm. DIM. MIN 0 0. 8. 3.8 G 4 TYP MAX. MIN. 1.75 0.2 0.003 1.65 0.46 0.013 0.25 ...

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M74HC242 DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 4.9 E 6 0° PIN 1 IDENTIFICATION 1 10/11 TSSOP14 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 ...

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... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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