Philips Semiconductors

Product specification

74F564

Octal D flip-flop (3-State)

1996 Jan 05

3

LOGIC DIAGRAM

D0

D1

D2

D3

D4

D5

D6

D7

Q0Q1Q2Q3Q4Q5Q6Q7

CP

OE

23

4

5

6

789

12

13

14

15

16

17

18

19

1

11

CP

D

Q

CP

D

Q

CP

Q

D

CP

D

Q

CP

D

Q

CP

D

Q

CP

D

Q

CP

D

Q

GND=Pin 10

SF01055

FUNCTION TABLE

INPUTS

INTERNAL

OUTPUTS

OPERATING MODES

OE

CP

Dn

REGISTER

Q0 – Q7

OPERATING MODES

L

L

↑

↑

l

h

L

H

H

L

Load and read register

L

↑

X

NC

NC

Hold

H

H

↑

↑

X

Dn

NC

Dn

Z

Z

Disable outputs

H = High voltage level

h = High voltage level one setup time prior to the Low-to-High clock transition

L = Low voltage level

l

= Low voltage level one setup time prior to the Low-to-High clock transition

NC= No change

X = Don’t care

Z = High impedance “off” state

↑ = Low-to-High clock transition

↑ = Not a Low-to-High clock transition

ABSOLUTE MAXIMUM RATINGS

(Operation beyond the limits set forth in this table may impair the useful life of the device.

Unless otherwise noted these limits are over the operating free-air temperature range.)

SYMBOL

PARAMETER

RATING

UNIT

Supply voltage

–0.5 to +7.0

V

Input voltage

–0.5 to +7.0

V

Input current

–30 to +5.0

mA

Voltage applied to output in High output state

V

Current applied to output in Low output state

48

mA

Operating free-air temperature range

0 to +70

°C

Storage temperature

–65 to +150

°C