SN74LVCH16952A 16-BIT REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS

SCAS320E - NOVEMBER 1993 - REVISED JANUARY 1998

features

Member of the Texas Instruments Widebus^TM Family
EPIC^TM (Enhanced-Performance Implanted CMOS) Submicron Process
Typical V_OLP (Output Ground Bounce) < 0.8 V at V_CC = 3.3 V, T_A = 25°C
Typical V_OHV (Output V_OH Undershoot) > 2 V at V_CC = 3.3 V, T_A = 25°C
Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V V_CC)
Power Off Disables Outputs, Permitting Live Insertion
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 250 mA Per JESD 17
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Package Options Include Plastic 300-mil Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages

EPIC and Widebus are trademarks of Texas Instruments Incorporated.

description

This 16-bit registered transceiver is designed for 2.7-V to 3.6-V V_CC operation.

The SN74LVCH16952A contains two sets of D-type flip-flops for temporary storage of data flowing in either direction. It can be used as two 8-bit transceivers or one 16-bit transceiver. Data on the A or B bus is stored in the registers on the low-to-high transition of the clock (CLKAB or CLKBA) input, provided that the clock-enable (CEAB\ or CEBA\) input is low. Taking the output-enable (OEAB\ or OEBA\) input low accesses the data on either port.

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.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.

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

The SN74LVCH16952A is characterized for operation from -40°C to 85°C.

Title: 16-BIT REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
Product Family: REGISTERED TRANSCEIVERS
Device Functionality: 16-BIT REGISTERED TRANSCEIVER
Orderable Devices: SN74LVCH16952ADGGR, SN74LVCH16952ADL, SN74LVCH16952ADLR

View the complete PDF datasheet: scas320e.pdf (123 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN74LVCH16952A

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