SN54LVT162245, SN74LVT162245 3.3-V ABT 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SCBS260E - JUNE 1993 - REVISED NOVEMBER 1995

features

A-Port Outputs Have Equivalent 22- Series Resistors, So No External Resistors Are Required
State-of-the-Art Advanced BiCMOS Technology (ABT) Design for 3.3-V Operation and Low-Static Power Dissipation
Members of the Texas Instruments Widebus^TM Family
Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V V_CC)
Support Unregulated Battery Operation Down to 2.7 V
Typical V_OLP (Output Ground Bounce) < 0.8 V at V_CC = 3.3 V, T_A = 25°C
Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
Bus-Hold Data Inputs Eliminate the Need for External Pullup Resistors
Support Live Insertion
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 is a trademark of Texas Instruments Incorporated.

description

The 'LVT162245 are 16-bit (dual-octal) noninverting 3-state transceivers designed for low-voltage (3.3-V) V_CC operation, but with the capability to provide a TTL interface to a 5-V system environment.

These devices can be used as two 8-bit transceivers or one 16-bit transceiver. The 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 level at the direction-control (DIR) input. The output-enable (OE\) input can be used to disable the device so that the buses are effectively isolated.

The A-port outputs, which are designed to source or sink up to 8 mA, include 22- series resistors to reduce overshoot and undershoot.

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

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

The SN74LVT162245 is available in TI's shrink small-outline (DL) and thin shrink small-outline (DGG) packages, which provide twice the input/output (I/O) pin count and functionality of standard small-outline packages in the same printed-circuit-board area.

The SN54LVT162245 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LVT162245 is characterized for operation from -40°C to 85°C.

Title: 3.3-V ABT 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
Product Family: STANDARD TRANSCEIVERS
Device Functionality: 16-BIT BUS TRANSCEIVER
Orderable Devices: SN74LVT162245DGGR, SN74LVT162245DL, SN74LVT162245DLR

View the complete PDF datasheet: scbs260e.pdf (119 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN74LVT162245

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