7474 Dual D Flip-Flop

EGP20.00

Out of stock

SKU: 7474 Categories: ,

Features

  • Two D-Type Flip-Flops
  • Outputs Directly Interface to CMOS, NMOS and TTL
  • Large Operating Voltage Range
  • Wide Operating Conditions

Pin Layout

TTL 7474 Pin Layout

Pin Description

Pin Number Description
1 Clear 1 Input
2 D1 Input
3 Clock 1 Input
4 Preset 1 Input
5 Q1 Output
6 Complement Q1 Output
7 Ground
8 Complement Q2 Output
9 Q2 Output
10 Preset 2 Input
11 Clock 2 Input
12 D2 Input
13 Clear 2 Input
14 Positive Supply

Dimensional Drawing

DIP14 IC Dimensional Drawing

Technical Data

Absolute Maximum Ratings

Supply Voltage

7V

Input Voltage

5.5V

Operating Free Air Temperature

0°C to +70°C

Storage Temperature Range

-65°C to +150°C

Recommended Operating Conditions

Symbol Parameter Min Typ Max Units
Vcc Supply Voltage 4.75 5 5.25 V
Vih HIGH Level Input Voltage 2     V
Vil LOW Level Input Voltage     0.8 V
Ioh HIGH Level Output Current     -0.4 mA
Iol LOW Level Output Current     16 mA
Ta Free Air Operating Temperature 0   70 °C

Electrical Characteristics

Symbol Parameter Conditions Min Typ Max Units
Vi Input Clamp Voltage Vcc=Min Ii=-12mA     -1.5 V
Voh HIGH Level Output Voltage Vcc=Min Ioh=MAX Vil=MAX 2.4 3.4   V
Vol LOW Level Output Voltage Vcc=Min Iol=MAX Vih=MAX   0.2 0.4 V
Ii Input Current@MAX Input Voltage Vcc=Max Vi=5.5V     1 mA
Iih HIGH Level Input Current Vcc=Max Vi=2.4V     40 µA
Iil LOW Level Input Current Vcc=Max Vi=0.4V     -1.6 mA
Ios Short Circuit Output Current Vcc=Max -18   -55 mA
Icch Supply Current with Outputs HIGH Vcc=Max   4 8 mA
Iccl Supply Current with Outputs LOW Vcc=Max   12 22 mA

Switching Characteristics at Vcc=5V,Ta=25°C

Symbol Parameter Conditions Min Typ Max Units
tplh Propagation Delay Time LOW-to-HIGH Level Output Cl=15pF Rl=400R     22 nS
tphl Propagation Delay Time HIGH-to-LOW Level Output Cl=15pF Rl=400R     15 nS
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