SN54LVTH16245A, SN74LVTH16245A 3.3-V ABT 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SCBS143F - MAY 1992 - REVISED AUGUST 1996

features

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
High-Impedance State During Power Up and Power Down
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
ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
Bus-Hold Data Inputs Eliminate the Need for External Pullup/Pulldown Resistors
Power Off Disables Inputs/Outputs, Permitting Live Insertion
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) Packages Using 25-mil Center-to-Center Spacings
Widebus is a trademark of Texas Instruments Incorporated.

description

The 'LVTH16245A 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. They 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 devices so that the buses are effectively isolated.

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

When V_CC is between 0 and 1.5-V, the devices are in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5-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.

The SN74LVTH16245A is available in TI's shrink small-outline (DL) and thin shrink small-outline (DGG) packages, which provide twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area.

The SN54LVTH16245A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LVTH16245A 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: UNIVERSAL BUS TRANSCEIVERS (UBTS)
Device Functionality: 16-BIT BUS TRANSCEIVER
Orderable Devices: SNJ54LVT16245AWD, SN74LVT16245ADGGR, SN74LVT16245ADL, SN74LVT16245ADLR

View the complete PDF datasheet: scbs143f.pdf (126 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN54LVT16245A, SN74LVT16245A

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