M74HC251M1R STMicroelectronics, M74HC251M1R Datasheet

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M74HC251M1R

Manufacturer Part Number
M74HC251M1R
Description
Manufacturer
STMicroelectronics
Datasheet

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DESCRIPTION
The M74HC251 is an high speed CMOS
8-CHANNEL
fabricated with silicon gate C
This Multiplexer features both true (Y) and
complement (W) outputs as well as STROBE
input. When the STROBE is high, both outputs are
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 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 251
PD
CC
PLH
OH
NIH
CC
= 17 ns (TYP.) at V
=4 A(MAX.) at T
| = I
(OPR) = 2V to 6V
= V
t
PHL
OL
NIL
= 4mA (MIN)
= 28 % V
MULTIPLEXER
A
CC
=25°C
CC
(MIN.)
= 6V
2
MOS technology.
8-CHANNEL MULTIPLEXER (3-STATE)
(3-STATE)
ORDER CODES
in the high impedance state. When enabled,
address information on the data select inputs
determines which data input is routed to Y and W.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PACKAGE
TSSOP
SOP
DIP
DIP
M74HC251M1R
M74HC251B1R
TUBE
SOP
M74HC251
M74HC251RM13TR
M74HC251TTR
T & R
TSSOP
1/11

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M74HC251M1R Summary of contents

Page 1

... When enabled, (3-STATE) address information on the data select inputs MOS technology. determines which data input is routed to Y and W. All inputs are equipped with protection circuits against static discharge and transient excess voltage. M74HC251 DIP SOP TUBE T & R M74HC251B1R M74HC251M1R M74HC251RM13TR M74HC251TTR TSSOP 1/11 ...

Page 2

M74HC251 INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE Don’t Care Z : High Impedance 2/11 PIN DESCRIPTION PIN ...

Page 3

LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output ...

Page 4

M74HC251 RECOMMENDED OPERATING CONDITIONS Symbol V Supply Voltage CC V Input Voltage I V Output Voltage O T Operating Temperature op Input Rise and Fall Time SPECIFICATIONS Symbol Parameter V V High Level Input ...

Page 5

AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH PHL Time ( Propagation Delay PHL Time ( - High Impedance PZL ...

Page 6

M74HC251 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) M74HC251 7/11 ...

Page 8

M74HC251 DIM. MIN. a1 0. 8/11 Plastic DIP-16 (0.25) MECHANICAL DATA mm. TYP MAX. 1.65 0.5 0.25 20 8.5 2.54 17.78 7.1 5.1 3.3 1.27 inch MIN. TYP. ...

Page 9

SO-16 MECHANICAL DATA mm. DIM. MIN 0 0. 9 3.8 G 4 TYP MAX. MIN. 1.75 0.2 0.003 1.65 0.46 0.013 0.25 ...

Page 10

M74HC251 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 TSSOP16 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 ...

Page 11

... 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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