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74HC74D View Datasheet(PDF) - NXP Semiconductors.

Part NameDescriptionManufacturer
74HC74D Dual D-type flip-flop with set and reset; positive edge-trigger NXP
NXP Semiconductors. NXP
74HC74D Datasheet PDF : 21 Pages
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74HC74; 74HCT74
Dual D-type flip-flop with set and reset; positive edge-trigger
Rev. 4 — 27 August 2012
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
40 C to +125 C
40 C to +125 C
74HC74DB 40 C to +125 C
plastic dual in-line package; 14 leads (300 mil)
plastic small outline package; 14 leads; body width SOT108-1
3.9 mm
plastic shrink small outline package; 14 leads; body SOT337-1
width 5.3 mm
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