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SN54ABT646A

Texas Instruments
Part Number SN54ABT646A
Manufacturer Texas Instruments
Description Octal Bus Transceivers/Registers
Published May 20, 2023
Detailed Description SN54ABT646A, SN74ABT646A OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3ĆSTATE OUTPUTS SCBS069H − JULY 1991 − REVISED MAY 20...
Datasheet PDF File SN54ABT646A PDF File

SN54ABT646A
SN54ABT646A


Overview
SN54ABT646A, SN74ABT646A OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3ĆSTATE OUTPUTS SCBS069H − JULY 1991 − REVISED MAY 2004 D Typical VOLP (Output Ground Bounce) <1 V at VCC = 5 V, TA = 25°C D High-Drive Outputs (−32-mA IOH, 64-mA IOL) D Ioff Supports Partial-Power-Down Mode Operation SN54ABT646A .
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JT OR W PACKAGE SN74ABT646A .
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DB, DGV, DW, NS, NT, OR PW PACKAGE (TOP VIEW) D Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17 D ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) SN54ABT646A .
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FK PACKAGE (TOP VIEW) DIR SAB CLKAB NC VCC CLKBA SBA CLKAB 1 SAB 2 DIR 3 A1 4 A2 5 A3 6 A4 7 A5 8 A6 9 A7 10 A8 11 GND 12 24 VCC 23 CLKBA 22 SBA 21 OE 20 B1 19 B2 18 B3 17 B4 16 B5 15 B6 14 B7 13 B8 4 3 2 1 28 27 26 A1 5 25 OE A2 6 24 B1 A3 7 23 B2 NC 8 22 NC A4 9 21 B3 A5 10 20 B4 A6 1112 13 14 15 16 17 1819 B5 A7 A8 GND NC B8 B7 B6 description/ordering information NC − No internal connection These devices consist of bus-transceiver circuits, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers.
Data on the A or B bus is clocked into the registers on the low-to-high transition of the appropriate clock (CLKAB or CLKBA) input.
Figure 1 illustrates the four fundamental bus-management functions that can be performed with the ’ABT646A devices.
ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − NT Tube SN74ABT646ANT SN74ABT646ANT SOIC − DW Tube Tape and reel SN74ABT646ADW SN74ABT646ADWR ABT646A −40°C to 85°C SOP − NS SSOP − DB Tape and reel Tape and reel SN74ABT646ANSR SN74ABT646ADBR ABT646A AB646A TSSOP − PW Tube Tape and reel SN74ABT646APW SN74ABT646APWR AB646A TVSOP − DGV Tape and reel SN74ABT646ADGVR AB646A CDIP − JT Tube SNJ54ABT646AJT SNJ54ABT646AJT −55°C to 125°C CFP − W Tube SNJ54ABT646AW SNJ54ABT646AW LCCC − FK Tube SNJ54ABT646AFK ...


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