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74HC243

Schematic symbol

Quad bus transceiver: Four bidirectional buffers between the A and B pins. OEAB (active low) turns on the A-to-B direction and OEBA (active high) turns on B-to-A, so one signal on both pins switches the direction. Pins 2 and 12 are not connected. Same pinout as the 74LS243.

integrated circuit IC chip 7400 series logic buffer transceiver tri-state bus driver 74HCT243 74LS243 74243

Details

Reference Character
U
Default Value
74HC243
Library
Circuit Canvas Library