See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

DGG | 56

Temp:

I (-40 to 85)

ECO Plan:

Green (RoHS & no Sb/Br)

SN74LVCH16952ADGGR


16-Bit Registered Transceiver With 3-State Outputs

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Texas Instruments SN74LVCH16952ADGGR

This 16-bit registered transceiver is designed for 1.65-V to 3.6-V VCC operation.

The SN74LVCH16952A contains two sets of D-type flip-flops for temporary storage of data flowing in either direction. The device 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 VCC 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.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

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