74AHC273 View Datasheet(PDF) - Philips Electronics
Part Name
Description
View to exact match
74AHC273 Datasheet PDF : 20 Pages
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Philips Semiconductors
Octal D-type flip-flop with reset;
positive-edge trigger
Product specification
74AHC273; 74AHCT273
FUNCTION TABLE
See note 1.
OPERATING MODES
reset (clear)
load ‘1’
load ‘0’
INPUTS
MR
CP
Dn
L
X
X
H
↑
h
H
↑
l
Note
1. H = HIGH voltage level;
h = HIGH voltage level one set-up time prior to the HIGH-to-LOW LE transition;
L = LOW voltage level;
I = LOW voltage level one set-up time prior to the HIGH-to-LOW LE transition;
X = don’t care;
↑ = LOW-to-HIGH transition.
OUTPUTS
Qn
L
L
L
ORDERING INFORMATION
OUTSIDE NORTH
AMERICA
74AHC273D
74AHC273PW
74AHCT273D
74AHCT273PW
NORTH AMERICA
74AHC273D
74AHC273PW DH
74AHCT273D
7AHCT273PW DH
PINS
20
20
20
20
PACKAGES
PACKAGE MATERIAL
SO
TSSOP
SO
TSSOP
plastic
plastic
plastic
plastic
CODE
SOT163-1
SOT360-1
SOT163-1
SOT360-1
PINNING
PIN
SYMBOL
1
MR
2, 5, 6, 9, 12, 15, 16 and 19 Q0 to Q7
3, 4, 7, 8, 13, 14, 17 and 18 D0 to D7
10
GND
11
CP
20
VCC
DESCRIPTION
master reset input (active LOW)
flip-flop outputs
data inputs
ground (0 V)
clock input (LOW-to-HIGH; edge-triggered)
DC supply voltage
1999 Sep 01
3
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