54ACT16620

54ACT16620, 74ACT16620 16ĆBIT BUS TRANSCEIVERS WITH 3ĆSTATE OUTPUTS SCAS184A − JUNE 1990 − REVISED APRIL 1996 D Members of the Texas Instruments Widebus  Family D Inputs Are TTL-Voltage Compatible D Inverting Logic D Flow-Through Architecture Optimizes PCB Layout D Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise D EPIC  (Enhanced-Performance Implanted CMOS) 1-µm Process D 500-mA Typical Latch-Up Immunity at 125°C D Package Options Include 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 Pin Spacings description The ’ACT16620 are inverting 16-bit transceivers designed for asynchronous communication between data buses. The control-function implementation allows for maximum flexibility in timing. 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 output-enable (OEAB or OEBA) inputs. The output-enable inputs can be used to disable the device so that the buses are effectively isolated. 54ACT16620 . . . WD PACKAGE 74ACT16620 . . . DL PACKAGE (TOP VIEW) 1OEAB 1B1 1B2 GND 1B3 1B4 VCC 1B5 1B6 GND 1B7 1B8 2B1 2B2 GND 2B3 2B4 VCC 2B5 2B6 GND 2B7 2B8 2OEAB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 1OEBA 47 1A1 46 1A2 45 GND 44 1A3 43 1A4 42 VCC 41 1A5 40...