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SN54ABT620FK Datasheet(PDF) 1 Page - Texas Instruments |
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SN54ABT620FK Datasheet(HTML) 1 Page - Texas Instruments |
1 / 7 page SN54ABT620, SN74ABT620 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCBS113D – FEBRUARY 1991 – REVISED APRIL 1998 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D State-of-the-Art EPIC-ΙΙB™ BiCMOS Design Significantly Reduces Power Dissipation D ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) D Latch-Up Performance Exceeds 500 mA Per JESD 17 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 Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), and Plastic (N) and Ceramic (J) DIPs description These octal bus transceivers provide for asynchronous communication between data buses. The control-function implementation allows for maximum flexibility in timing. The ’ABT620 devices provide inverted data at the outputs. These devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic levels at the output-enable (OEAB and OEBA) inputs. The output-enable inputs can be used to disable the device so that the buses are effectively isolated. The dual-enable configuration gives the transceivers the capability of storing data by simultaneously enabling OEAB and OEBA. When both OEAB and OEBA are enabled and all other data sources to the two sets of bus lines are at high impedance, both sets of bus lines (16 total) remain at their last states. In this way, each output reinforces its input in this configuration. To ensure the high-impedance state during power up or power down, OEBA 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. OEAB should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. The SN54ABT620 is characterized for operation over the full military temperature range of –55 °C to 125°C. The SN74ABT620 is characterized for operation from –40 °C to 85°C. Copyright © 1998, Texas Instruments Incorporated UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. EPIC- ΙΙB is a trademark of Texas Instruments Incorporated. 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 OEAB A1 A2 A3 A4 A5 A6 A7 A8 GND VCC OEBA B1 B2 B3 B4 B5 B6 B7 B8 SN54ABT620 ...J PACKAGE SN74ABT620 . . . DB, DW, N, OR PW PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 B1 B2 B3 B4 B5 A3 A4 A5 A6 A7 SN54ABT620 . . . FK PACKAGE (TOP VIEW) |
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