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Home > Semiconductors > Logic ICs > Flip Flops > Fairchild 74LS374 IC D-Type Latch / Flip Flop TTL Level 4 In 2 Out PDIP-20

Fairchild 74LS374 IC D-Type Latch / Flip Flop TTL Level 4 In 2 Out PDIP-20

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Quick Overview

Fairchild 74LS374 FSC IC Flip Flops Octal D-Ty Edge Trig F-F W/3-State Otpt

Fairchild 74LS374 IC D-Type Latch / Flip Flop TTL Level 4 In 2 Out PDIP-20

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Details

Fairchild Semiconductor 74LS374 D-Type Latch / Flip Flop TTL Level 4 In 2 Out PDIP-20 Through Hole

This 8-bit register features totem-pole 3-STATE outputs designed specifically for driving highly-capacitive or rela- tively low-impedance loads. The high-impedance state and increased high-logic-level drive provides this register with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for inter- face or pull-up components. It is particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

These 8-bit registers feature totem-pole 3-STATE outputs designed specifically for driving highly-capacitive or relatively low-impedance loads. The high-impedance state and increased high-logic level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pull-up components. They are particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight latches of the DM74LS373 are transparent Dtype latches meaning that while the enable (G) is HIGH the Q outputs will follow the data (D) inputs. When the enable is taken LOW the output will be latched at the level of the data that was set up.The eight flip-flops of the DM74LS374 are edge-triggered D-type flip flops. On the positive transition of the clock, the Q outputs will be set to the logic states that were set up at the D inputs. A buffered output control input can be used to place the eight outputs in either a normal logic state (HIGH or LOW logic levels) or a high-impedance state. In the high-impedance state the outputs neither load nor drive the bus lines significantly. The output control does not affect the internal operation of the latches or flip-flops. That is, the old data can be retained or new data can be entered even while the outputs are OFF.

Features

  • 3-STATE bus-driving outputs
  • Full parallel-access for loading
  • Buffered control inputs
  • P-N-P inputs reduce D-C loading on data lines

Additional Information

74LS374
Manufacturer: Fairchild Semiconductor
Product Category: Flip Flops
Brand: Fairchild Semiconductor
Number of Circuits: 8
Logic Family: LS
Logic Type: Transparent D-Type Latch
Polarity: Non-Inverting
Input / Output Type: TTL
Supply Voltage - Max: 5.25 V
Maximum Operating Temperature: + 70 C
Mounting Style: Through Hole
Package / Case: PDIP-20
Number of Input Lines: 4
Number of Output Lines: 2
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