54ACT16640, 74ACT16640
16-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS

SCAS173A - JULY 1990 - REVISED APRIL 1996

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

features

• Members of the Texas Instruments Widebus^TM Family
• Inputs Are TTL-Voltage Compatible
• Flow-Through Architecture Optimizes PCB Layout
• Distributed V_CC and GND Pin Configuration Minimizes High-Speed Switching Noise
• EPIC^TM (Enhanced-Performance Implanted CMOS) 1-m Process
• 500-mA Typical Latch-Up Immunity at 125°C
• Packaged in Plastic 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Spacings

EPIC and Widebus are trademarks of Texas Instruments Incorporated.

description

The 'ACT16640 are inverting 16-bit transceivers designed for asynchronous communication between data buses.

These devices can be used as two 8-bit transceivers or one 16-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 direction-control (1DIR and 2DIR) inputs. The output-enable (1 and 2) inputs can be used to disable the device so that the buses are effectively isolated.

The 74ACT16640 is packaged in TI's shrink small-outline package, which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area.

The 54ACT16640 is characterized for operation over the full military temperature range of -55°C to 125°C. The 74ACT16640 is characterized for operation from -40°C to 85°C.