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74ACT11623DWR 데이터시트(PDF) 1 Page - Texas Instruments |
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74ACT11623DWR 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 11 page 74ACT11623 OCTAL BUS TRANSCEIVER WITH 3STATE OUTPUTS SCAS059A − D2957, JULY 1987 − REVISED APRIL 1993 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Copyright 1993, Texas Instruments Incorporated 2−1 • Local Bus-Latch Capability • Inputs Are TTL-Voltage Compatible • Flow-Through Architecture Optimizes PCB Layout • Center-Pin V CC and GND Configurations Minimize High-Speed Switching Noise • EPICt (Enhanced-Performance Implanted CMOS) 1- mm Process • 500-mA Typical Latch-Up Immunity at 125 °C • Package Options Include Plastic Small- Outline Packages and Standard Plastic 300-mil DIPs description The 74ACT11623 is designed for asynchronous two-way communication between data buses. The control function implementation allows for maximum flexibility in timing. The device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending upon the logic levels at the enable inputs (GBA and GAB). The enable inputs can be used to disable the device so that the buses are effectively isolated. The dual-enable configuration gives these devices the capability to store data by simultaneous enabling of GBA and GAB. Each output reinforces its input in this transceiver configuration. Thus, when both control inputs are enabled and all other data sources to the two sets of bus lines are at high impedance, both sets of bus lines (16 in all) will remain at their last states. The 8-bit codes appearing on the two sets of buses will be identical for the 74ACT11623. The 74ACT11623 is characterized for operation from − 40 °C to 85°C. GBA L H H GAB L H L B data to A bus A data to B bus Isolation B data to A bus, A data to B bus OPERATION ENABLE INPUTS LH FUNCTION TABLE 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 A1 A2 A3 A4 GND GND GND GND A5 A6 A7 A8 GAB B1 B2 B3 B4 VCC VCC B5 B6 B7 B8 GBA DW OR NT PACKAGE (TOP VIEW) EPIC is a trademark of Texas Instruments Incorporated. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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