Dual D-Type Positive-Edge-Triggered Flip-Flops With Clear and Preset - SN74HC74

SN74HC74 (ACTIVE)

Dual D-Type Positive-Edge-Triggered Flip-Flops With Clear and Preset

 

Description

The SNx4HC74 devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the hold-time interval, data at the D input can be changed without affecting the levels at the outputs.

Features

  • Wide Operating Voltage Range: 2 V to 6 V
  • Outputs Can Drive Up To 10 LSTTL Loads
  • Low Power Consumption, 40-µA Maximum ICC
  • Typical tpd = 15 ns
  • ±4-mA Output Drive at 5 V
  • Very Low Input Current of 1 µA

View more

Parametrics Compare all products in D-Type Flip-Flop

 
Technology Family
VCC (Min) (V)
VCC (Max) (V)
Bits (#)
Voltage (Nom) (V)
F @ Nom Voltage (Max) (Mhz)
ICC @ Nom Voltage (Max) (mA)
tpd @ Nom Voltage (Max) (ns)
Output Drive (IOL/IOH) (Max) (mA)
3-State Output
Rating
Operating Temperature Range (C)
Pin/Package
SN74HC74 SN54HC74 SN74HC74-EP SN74HC74-Q1
HC    HC    HC    HC   
2    2    2    2   
6    6    6    6   
2    2    2    2   
3.3
5   
3.3
5   
3.3
5   
3.3
5   
28    28    28    28   
0.04    0.04    0.04    0.04   
37    37    37    37   
5.2/-5.2    5.2/-5.2    5.2/-5.2    5.2/-5.2   
No    No    No    No   
Catalog    Military    HiRel Enhanced Product    Automotive   
-40 to 85    -55 to 125    -55 to 125    -40 to 125   
14PDIP
14SO
14SOIC
14SSOP
14TSSOP   
14CDIP
14CFP
20LCCC   
14TSSOP    14SOIC
14TSSOP   

Other qualified versions of SN74HC74

Version Part Number Definition
Military SN54HC74 QML certified for Military and Defense Applications
Automotive SN74HC74-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects
Enhanced Product SN74HC74-EP Supports Defense, Aerospace and Medical Applications