Datasheet

1998 Feb 23 3
Philips Semiconductors Product specification
Dual D-type flip-flop with set and reset;
positive-edge trigger
74HC/HCT74
ORDERING INFORMATION
PIN DESCRIPTION
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
74HC(T)74N DIP14 plastic dual in-line package; 14 leads (300 mil) SOT27-1
74HC(T)74D SO14 plastic small outline package; 14 leads; body width 3.9 mm SOT108-1
74HCT74DB SSOP14 plastic shrink small outline package; 14 leads; body width 5.3 mm SOT337-1
74HCT74PW TSSOP14 plastic thin shrink small outline package; 14 leads; body width 4.4 mm SOT402-1
PIN NO. SYMBOL NAME AND FUNCTION
1, 13 1
R
D
, 2R
D
asynchronous reset-direct input (active LOW)
2, 12 1D, 2D data inputs
3, 11 1CP, 2CP clock input (LOW-to-HIGH, edge-triggered)
4, 10 1
S
D
, 2S
D
asynchronous set-direct input (active LOW)
5, 9 1Q, 2Q true flip-flop outputs
6, 8 1
Q, 2Q complement flip-flop outputs
7 GND ground (0 V)
14 V
CC
positive supply voltage
Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol.