74LS243 DIP-14 Quad Bus Transceiver IC (3-State Outputs, TTL, 5V)

Description -

The 74LS243 DIP is a TTL logic integrated circuit that functions as a 4-bit bidirectional bus transceiver in a 14-pin Dual Inline Package (DIP). It belongs to the 74LS Low Power Schottky logic family and is designed for high-speed bidirectional data transfer between digital buses.

The device features four non-inverting transceivers with 3-state outputs, allowing data to be transferred between Bus A and Bus B while supporting bus isolation through dedicated enable inputs. The 74LS243 is widely used in microprocessor systems, memory interfacing, bus buffering, and embedded digital applications.

Key Features -

• Quad bidirectional bus transceiver

• Non-inverting data transfer

• 3-state outputs for bus isolation

• Independent output enable inputs

• High-current output drive capability

• Low Power Schottky technology

• TTL compatible logic levels

• Standard DIP-14 package

Specifications -

• Product type - TTL Logic IC

• IC Model - 74LS243

• Logic Function - Quad Bus Transceiver with 3-State Outputs

• Package type - DIP-14

• Logic family - 74LS TTL

• Operating voltage - 4.75V to 5.25V DC

• Number of transceivers - 4

• Output type - Non-Inverting 3-State Outputs

• Typical propagation delay - 12ns

• High-level output current - -15mA

• Low-level output current - 24mA

• Input high voltage - 2.0V Minimum

• Operating temperature - 0C to 70C

Applications -

• Bus interfacing

• Microprocessor systems

• Memory interfacing

• Data bus buffering

• Embedded systems

• Industrial automation

• Digital communication systems

• Computer and peripheral interfaces