74AHC74 データシートの表示（PDF） - Nexperia B.V. All rights reserved
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74AHC74
Nexperia B.V. All rights reserved
74AHC74 Datasheet PDF : 15 Pages
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Nexperia
5. Pinning information
74AHC74; 74AHCT74
Dual D-type flip-flop with set and reset; positive-edge trigger
5.1. Pinning
74AHC74
74AHCT74
1RD 1
1D 2
1CP 3
1SD 4
1Q 5
1Q 6
GND 7
14 VCC
13 2RD
12 2D
11 2CP
10 2SD
9 2Q
8 2Q
001aac449
Fig. 5. Pin configuration SOT108-1 (SO14) and
SOT402-1 (TSSOP14)
74AHC74
74AHCT74
terminal 1
index area
1D 2
1CP 3
1SD 4
1Q 5
1Q 6
GND(1)
13 2RD
12 2D
11 2CP
10 2SD
9 2Q
001aac450
Transparent top view
(1) This is not a ground pin. There is no electrical or
mechanical requirement to solder the pad. In case
soldered, the solder land should remain floating or
connected to GND.
Fig. 6. Pin configuration SOT762-1 (DHVQFN14)
5.2. Pin description
Table 2. Pin description
Symbol
Pin
1RD
1
1D
2
1CP
3
1SD
4
1Q
5
1Q
6
GND
7
2Q
8
2Q
9
2SD
10
2CP
11
2D
12
2RD
13
VCC
14
Description
asynchronous reset direct input (active LOW)
data input
clock input (LOW to HIGH, edge-triggered)
asynchronous set direct input (active LOW)
true flip-flop output
complement flip-flop output
ground (0 V)
complement flip-flop output
true flip-flop output
asynchronous set direct input (active LOW)
clock input (LOW to HIGH, edge-triggered)
data input
asynchronous reset direct input (active LOW)
supply voltage
74AHC_AHCT74
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 22 April 2020
© Nexperia B.V. 2020. All rights reserved
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