Description
74374
IC
D type Flip Flop Chip DIP-20
The 74374 is an integrated circuit that embodies eight independent edge-triggered D-type flip-flops within a single DIP-20 package. Each flip-flop acts as a fundamental one-bit memory cell, capturing and retaining the logical state (high or low) present at its individual data input. This design allows for the synchronous handling of an 8-bit data word, making it a compact and efficient solution for data storage and transfer in digital systems.
The fundamental operation of the chip is governed by a shared clock signal. The data presented at the inputs is not transferred to the outputs immediately. Instead, the capture occurs precisely at the moment the clock signal transitions from a low to a high voltage level, a mechanism known as positive-edge triggering. This synchronous operation ensures that all eight bits are latched simultaneously, preventing data instability and ensuring coherent system timing.
A key feature of the
74374
is its output control capability via a dedicated Output Enable pin. When this pin is activated, the outputs behave normally, driving the stored data onto the connected bus or lines. When it is deactivated, all eight outputs enter a high-impedance state. This effectively disconnects the chip from the circuit, allowing multiple devices to share the same bus lines without electrical conflict, which is essential for building bidirectional data paths and complex bus architectures.
Features:
Eight Edge-Triggered D-Type Flip-Flops.
Positive-Edge Clocking.
3-State Bus Driving Outputs.
Buffered Control Inputs.
Full Parallel Access.
Standard Plastic DIP-20 Package.
Inputs are TTL-Voltage Compatible.
Specifications:
Physical
Case/Package
PDIP
Mount
Through Hole
Number of Pins
20
Weight
1.1991 g
Technical
Clock Edge Trigger Type
Positive Edge
Frequency
70 MHz
High Level Output Current
-3 mA
Logic Function
D-Type, Flip-Flop
Low Level Output Current
24 mA
Max Frequency
70 MHz
Max Operating Temperature
70 °C
Max Supply Voltage
5.5 V
Min Operating Temperature
0 °C
Min Supply Voltage
4.5 V
Number of Bits
8
Number of Bits per Element
8
Number of Channels
8
Number of Circuits
8
Number of Elements
1
Number of Input Lines
8
Number of Output Lines
3
Number of Outputs
8
Operating Supply Voltage
5 V
Output Current
24 mA
Output Type
TTL
Polarity
Non-Inverting
Propagation Delay
6.1 ns
Termination
DIP
Turn-On Delay Time
3.2 ns
Applications:
Buffer Registers.
I/O Ports.
Bidirectional Bus Drivers.
Working Registers.
Package Contents:
1x
74374 IC D type Flip Flop Chip DIP-20
Datasheet
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