SN54ABTH245, SN74ABTH245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SCBS663C - APRIL 1996 - REVISED MAY 1997

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features

State-of-the-Art EPIC-IIB^TM BiCMOS Design Significantly Reduces Power Dissipation
Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
Typical V_OLP (Output Ground Bounce) < 1 V at V_CC = 5 V, T_A = 25°C
High-Impedance State During Power Up and Power Down
High-Drive Outputs (-32-mA I_OH, 64-mA I_OL)
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), Thin Shrink Small-Outline (PW), and Thin Very Small-Outline (DGV) Packages, Ceramic Chip Carriers (FK), Plastic (N) and Ceramic (J) DIPs, and Ceramic Flat (W) Package

EPIC-IIB is a trademark of Texas Instruments Incorporated.

description

These octal bus transceivers are designed for asynchronous communication between data buses. The devices transmit data 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 (DIR) input. The output-enable (OE\) input can be used to disable the device so the buses are effectively isolated.

When V_CC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The SN54ABTH245 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABTH245 is characterized for operation from -40°C to 85°C.

Title: SN54ABTH245, SN74ABTH245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
Product Family: STANDARD TRANSCEIVERS
Device Functionality: OCTAL BUS TRANSCEIVER
Orderable Devices: SN74ABTH245DBLE, SN74ABTH245DW, SN74ABTH245DWR, SN74ABTH245N, SN74ABTH245PWLE

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View more information about generic part numbers:SN74ABTH245

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