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nexperia

74HC74D Datasheet Preview

74HC74D Datasheet

Dual D-type flip-flop

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74HC74; 74HCT74
Dual D-type flip-flop with set and reset; positive edge-trigger
Rev. 6 — 21 April 2020
Product data sheet
1. General description
The 74HC74 and 74HCT74 are dual positive edge triggered D-type flip-flop. They have individual
data (nD), clock (nCP), set (nSD) and reset (nRD) inputs, and complementary nQ and nQ outputs.
Data at the nD-input, that meets the set-up and hold time requirements on the LOW-to-HIGH clock
transition, is stored in the flip-flop and appears at the nQ output. Schmitt-trigger action in the clock
input, makes the circuit highly tolerant to slower clock rise and fall times. Inputs include clamp
diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of
VCC.
2. Features and benefits
Input levels:
For 74HC74: CMOS level
For 74HCT74: TTL level
Symmetrical output impedance
Low power dissipation
High noise immunity
Balanced propagation delays
Specified in compliance with JEDEC standard no. 7A
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
74HC74D
-40 °C to +125 °C SO14
74HCT74D
74HC74DB
-40 °C to +125 °C SSOP14
74HCT74DB
74HC74PW
-40 °C to +125 °C TSSOP14
74HCT74PW
74HC74BQ
-40 °C to +125 °C DHVQFN14
74HCT74BQ
Description
plastic small outline package; 14 leads;
body width 3.9 mm
plastic shrink small outline package; 14 leads;
body width 5.3 mm
plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads; 14 terminals;
body 2.5 × 3 × 0.85 mm
Version
SOT108-1
SOT337-1
SOT402-1
SOT762-1




nexperia

74HC74D Datasheet Preview

74HC74D Datasheet

Dual D-type flip-flop

No Preview Available !

Nexperia
74HC74; 74HCT74
Dual D-type flip-flop with set and reset; positive edge-trigger
4. Functional diagram
4 10
1SD 2SD
SD
2
12
1D
2D
D
1Q 5
Q 2Q 9
3
11
1CP
2CP
CP
FF
Q
1Q
RD
2Q
6
8
1RD 2RD
1 13 mna418
Fig. 1. Logic symbol
4
S
5
3
C1
2
1D
6
1
R
10
S
9
11
C1
12
1D
8
13
R
mna419
Fig. 2. IEC logic symbol
4 1SD
SD
2 1D D
1Q
Q
5
3 1CP CP
FF Q 1Q 6
RD
1 1RD
10 2SD
SD
12 2D D
2Q
Q
9
11 2CP CP
FF 2Q
Q
8
RD
13 2RD
mna420
Fig. 3. Functional diagram
Q
C
C
C
C
D
C
RD
SD
CP
C
C
Fig. 4. Logic diagram for one flip-flop
C
C
Q
C
mna421
74HC_HCT74
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 21 April 2020
© Nexperia B.V. 2020. All rights reserved
2 / 18


Part Number 74HC74D
Description Dual D-type flip-flop
Maker nexperia
PDF Download

74HC74D Datasheet PDF






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