SN54ABT162827, SN74ABT162827 20-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

SCBS248B - JULY 1993 - REVISED DECEMBER 1994

features

Output Ports Have Equivalent 25- Series Resistors, So No External Resistors Are Required
Members of the Texas Instruments Widebus^TM Family
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
Distributed V_CC and GND Pin Configuration Minimizes High-Speed Switching Noise
Flow-Through Architecture Optimizes PCB Layout
Package Options Include Plastic 300-mil Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings

Widebus and EPIC-IIB are trademarks of Texas Instruments Incorporated.

description

The ´ABT162827 are noninverting 20-bit buffers composed of two 10-bit buffers with separate output-enable signals. For either 10-bit buffer, the two output-enable (1OE1\ and 1OE2\ or 2OE1\ and 2OE2\) inputs must both be low for the corresponding Y outputs to be active. If either output-enable input is high, the outputs of that 10-bit buffer are in the high-impedance state.

The outputs, which are designed to source or sink up to 12 mA, include 25- series resistors to reduce overshoot and undershoot.

To ensure the high-impedance state during power up or power down, OE\ inputs 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.

The SN74ABT162827 is available in TI's shrink small-outline package (DL), which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area.

The SN54ABT162827 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT162827 is characterized for operation from -40°C to 85°C.

Title: 20-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
Product Family: NON INVERTERS
Device Functionality: 20-BIT BUFFER/DRIVER
Orderable Devices: SN74ABT162827DGGR, SN74ABT162827DL

View the complete PDF datasheet: scbs248b.pdf (111 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN74ABT162827

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