SN74AUC245ZQNR

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SN74AUC245ZQNR

Octal Bus Transceiver with 3-State Outputs

Packaging

Package | PIN: ZQN | 20
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $2.30
10-24 $2.06
25-99 $1.91
100-249 $1.67
250-499 $1.54
500-749 $1.29
750-999 $1.06
1000+ $0.97

Features

  • Optimized for 1.8-V Operation and Is 3.6-V I/O Tolerant to Support Mixed-Mode Signal Operation
  • Ioff Supports Partial-Power-Down Mode Operation
  • Sub 1-V Operable
  • Max tpd of 1.7 ns at 1.8 V
  • Low Power Consumption, 20-µA Max ICC
  • ±8-mA Output Drive at 1.8 V
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    - 2000-V Human-Body Model (A114-A)
    - 200-V Machine Model (A115-A)
    - 1000-V Charged-Device Model (C101)

Texas Instruments  SN74AUC245ZQNR

This octal bus transceiver is operational at 0.8-V to 2.7-V VCC, but is designed specifically for 1.65-V to 1.95-V VCC operation.

The SN74AUC245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so the buses are effectively isolated.

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.

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.