SNJ54HC245J

The Texas Instruments SNJ54HC245J is an octal bus transceiver designed for asynchronous two-way communication between data buses. This device offers 8 channels with CMOS input and output types, operating within a wide voltage range of 2V to 6V. It features balanced outputs, high speed with typical propagation delay of 12 ns, and positive input clamp diodes. The transceiver includes high-current 3-state outputs capable of driving bus lines directly or up to 15 LSTTL loads. Its low power consumption is rated at a maximum of 80 µA Icc, with a low input current of 1 µA maximum. The SNJ54HC245J has a military rating and an operating temperature range of -55°C to 125°C. It is available in CDIP (J), CFP (W), and LCCC (FK) package types.

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. The devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.