74AHC574PWDH Просмотр технического описания (PDF) - NXP Semiconductors.
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74AHC574PWDH Datasheet PDF : 20 Pages
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Philips Semiconductors
Octal D-type flip-flop; positive edge-trigger; 3-state
Product specification
74AHC574;
74AHCT574
FUNCTION TABLE
See note 1.
OPERATING MODES
Load and read register
Load register and disable outputs
INPUTS
OE
CP
Dn
L
↑
I
L
↑
h
H
↑
l
H
↑
h
INTERNAL
FLIP-FLOPS
L
H
L
H
Note
1. H = HIGH voltage level;
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition;
L = LOW voltage level;
I = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition;
Z = high-impedance OFF-state;
↑ = LOW-to-HIGH CP transition.
OUTPUTS
Q0 to Q7
L
H
Z
Z
ORDERING INFORMATION
OUTSIDE NORTH
AMERICA
NORTH AMERICA
74AHC574D
74AHC574PW
74AHCT574D
74AHCT574PW
74AHC574D
74AHC574PW DH
74AHCT574D
74AHCT574PW 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
1
2, 3, 4, 5, 6, 7, 8 and 9
10
11
19, 18, 17, 16, 15, 14, 13 and 12
20
SYMBOL
OE
D0 to D7
GND
CP
Q0 to Q7
VCC
DESCRIPTION
3-state output enable input (active LOW)
data inputs
ground (0 V)
clock input (LOW-to-HIGH, edge triggered)
3-state flip-flop outputs
DC supply voltage
1999 Jun 16
3
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