SN74HC74 Dual D-Type Positive-Edge-Triggered Flip-Flops With Clear and Preset | TI.com

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)
IOL (Max) (mA)
IOH (Max) (mA)
3-State Output
Rating
Operating Temperature Range (C)
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