SN54ABT162540, SN74ABT162540
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS

SCBS244 - JULY 1993

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
• Packaged in Plastic 300-mil Shrink Small-Outline Packages and 380-mil Fine-Pitch Ceramic Flat Packages Using 25-mil Center-to-Center Spacings

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

description

These 16-bit buffers and bus drivers provide a high-performance bus interface for wide data paths.

The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable ( or ) input is high, all corresponding outputs 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, 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 SN74ABT162540 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 SN54ABT162540 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT162540 is characterized for operation from -40°C to 85°C.