SN54LVT16952, SN74LVT16952 3.3-V ABT 16-BIT REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS

SCBS151D - MAY 1992 - REVISED AUGUST 1996

Please be aware that an important notice concerningavailability, standard warranty, and use in critical applications ofTexas Instruments semiconductor products and disclaimers theretoappears at the end of this data sheet.

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
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 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 'LVT16952 are 16-bit registered transceivers designed forlow-voltage (3.3-V) V_CC operation, but with the capabilityto provide a TTL interface to a 5-V system environment. These devicescan be used as two 8-bit transceivers or one 16-bit transceiver. Dataon the A or B bus is stored in the registers on the low-to-hightransition of the clock (CLKAB or CLKBA) input provided that theclock-enable (or ) input is low. Taking theoutput-enable ( or ) input low accesses the data oneither port.

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

To ensure the high-impedance state during power up or power down,should be tiedto V_CC through a pullup resistor; the minimum value of theresistor is determined by the current-sinking capability of thedriver.

The SN74LVT16952 is available in TI's shrink small-outline (DL)and thin shrink small-outline (DGG) packages, which provide twice theI/O pin count and functionality of standard small-outline packages inthe same printed-circuit-board area.

The SN54LVT16952 is characterized for operation over the fullmilitary temperature range of -55°C to 125°C. TheSN74LVT16952 is characterized for operation from -40°C to85°C.

Title: 3.3-V ABT 16-BIT REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS
Product Family: UNIVERSAL BUS TRANSCEIVERS (UBTS)
Device Functionality: 16-BIT REGISTERED TRANSCEIVER
Orderable Devices: SNJ54LVT16952WD, SN74LVT16952DGGR, SN74LVT16952DL, SN74LVT16952DLR

View the complete PDF datasheet: scbs151d.pdf (118 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN54LVT16952, SN74LVT16952

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