描述 Description

The 'ABT16863 are 18-bit noninverting transceivers designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements. The 'ABT16863 can be used as two 9-bit transceivers or one 18-bit transceiver. They 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 output-enable (OEAB\\ or OEBA\\) inputs. When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, OE\\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The SN54ABT16863 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT16863 is characterized for operation from -40°C to 85°C.

特性 Features

? Members of the Texas InstrumentsWidebusTM Family
? State-of-the-ArtEPIC-II BTM BiCMOS Design Significantly Reduces Power Dissipation
? Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
? Typical VOLP (Output Ground Bounce) CC = 5 V, TA = 25°C
? High-Impedance State During Power Up and Power Down
? Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise
? Flow-Through Architecture Optimizes PCB Layout
? High-Drive Outputs (-32-mA IOH, 64-mA IOL)
? Package Options Include Plastic 300-mil Shrink Small-Outline (DL) Package and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings Widebus and EPIC-IIB are trademarks of Texas Instruments Incorporated.