Datasheet

9397 750 13816 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 03 — 12 November 2004 5 of 20
Philips Semiconductors
74HC75
Quad bistable transparant latch
6.2 Pin description
7. Functional description
7.1 Function table
[1] H = HIGH voltage level;
L = LOW voltage level;
q = lower case letters indicate the state of the referenced output one set-up time prior to the HIGH-to-LOW
LEnn transition;
X = don’t care.
Table 3: Pin description
Symbol Pin Description
1
Q 1 complementary latch output 1
1D 2 data input 1
2D 3 data input 2
LE34 4 latch enable input for latches 3 and 4 (active HIGH)
V
CC
5 positive supply voltage
3D 6 data input 3
4D 7 data input 4
4
Q 8 complementary latch output 4
4Q 9 latch output 4
3Q 10 latch output 3
3
Q 11 complementary latch output 3
GND 12 ground (0 V)
LE12 13 latch enable input for latches 1 and 2 (active HIGH)
2
Q 14 complementary latch output 2
2Q 15 latch output 2
1Q 16 latch output 1
Table 4: Function table
[1]
Operating mode Input Output
LEnn nD nQ nQ
Data enabled H L L H
HHHL
Data latched L X q
q