SN74LVCR162245 - 16-Bit Bus Transceiver With 3-State Outputs

This 16-bit (dual-octal) noninverting bus transceiver is designed for 2.7-V to 3.6-V V_CC operation.

The SN74LVCR162245 is designed forasynchronous communication between data buses. The control-function implementation minimizes external timing requirements.

This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so that the buses are effectively isolated.

All outputs, which are designed to sink up to 12 mA, include 26- resistors to reduce overshoot and undershoot.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. The bus-hold circuitry is part of the input circuit and is not disabled by OE\ or DIR.

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.

Products containing the "SN74LVCR162245" keyword are: SN74LVCR162245DGGR , SN74LVCR162245DGGR , SN74LVCR162245DGGR(HBM2K , SN74LVCR162245DGGRG4 , SN74LVCR162245DL , SN74LVCR162245DL , SN74LVCR162245DLR , SN74LVCR162245DLR , SN74LVCR162245KR , SN74LVCR162245KR

• Member of the Texas Instruments Widebus™ Family
• Operates From 2.7 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max t_pd of 8.5 ns at 3.3 V
• 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
• Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
• All Outputs Have Equivalent 26- Series Resistors, So No External Resistors Are Required
• Latch-Up Performance Exceeds 250 mA Per JEDEC Standard JESD-17
• ESD Protection Exceeds JESD 22
  • 2000-V Human-Body Model (A114-A)
  • 200-V Machine Model (A115-A)

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