SN54LVT2952, SN74LVT2952 3.3-V ABT OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

SCBS152E - MAY 1992 - REVISED JULY 1995

features

State-of-the-Art Advanced BiCMOS Technology (ABT) Design for 3.3-V Operation and Low-Static Power Dissipation
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-883C, 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
Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), and Ceramic (JT) DIPs

description

These octal bus transceivers and registers are designedspecifically for low-voltage (3.3-V) V_CC operation, butwith the capability to provide a TTL interface to a 5-V systemenvironment.

The 'LVT2952 consist of two 8-bit back-to-back registers thatstore data flowing in both directions between two bidirectionalbuses. Data on the A or B bus is stored in the registers on thelow-to-high transition of the clock (CLKAB or CLKBA) input providedthat the clock-enable (or ) input islow. Taking the output-enable ( or ) input lowaccesses the data on either 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 SN74LVT2952 is available in TI's shrink small-outline package(DB), which provides the same I/O pin count and functionality ofstandard small-outline packages in less than half theprinted-circuit-board area.

The SN54LVT2952 is characterized for operation over the fullmilitary temperature range of -55°C to 125°C. TheSN74LVT2952 is characterized for operation from -40°C to85°C.

Title: 3.3-V ABT OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
Product Family: REGISTERED TRANSCEIVERS
Device Functionality: OCTAL BUS TRANSCEIVER AND REGISTER
Orderable Devices: SN74LVT2952DBLE, SN74LVT2952DW, SN74LVT2952DWR, SN74LVT2952PWLE

View the complete PDF datasheet: scbs152e.pdf (142 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN74LVT2952

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