NXP Semiconductors
74HC74; 74HCT74
Dual D-type flip-flop with set and reset; positive edge-trigger
Table 1.
Ordering information
…continued
Package
Temperature range
Name
TSSOP14
DHVQFN14
Description
plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
Version
SOT402-1
40 C
to +125
C
40 C
to +125
C
Type number
74HC74PW
74HCT74PW
74HC74BQ
74HCT74BQ
plastic dual in-line compatible thermal enhanced very SOT762-1
thin quad flat package; no leads; 14 terminals;
body 2.5
3
0.85 mm
4. Functional diagram
1SD
SD
D
CP
FF
Q
4 10
1SD 2SD
2
12
3
11
1D
D
2D
1CP
CP
2CP
SD
Q
1Q
2Q
5
9
4
3
2
1
S
C1
1D
R
12
S
C1
1D
R
mna419
4
2
3
1D
1CP
Q
1Q
5
1Q
6
RD
5
1
6
10
1RD
2SD
SD
D
CP
FF
8
RD
13
2RD
mna420
2D
2CP
FF
Q
10
1Q
2Q
6
8
11
12
13
mna418
Q
2Q
9
9
11
RD
1RD 2RD
1 13
Q
2Q
8
Fig 1.
Logic symbol
Fig 2.
IEC logic symbol
Fig 3.
Functional diagram
Q
C
C
C
C
D
C
RD
C
C
Q
C
SD
mna421
CP
C
C
Fig 4.
Logic diagram for one flip-flop
74HC_HCT74
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 4 — 27 August 2012
2 of 21
PHILIPS [ NXP SEMICONDUCTORS ]
