SN74ABT245BRGYR

text.skipToContent text.skipToNavigation

SN74ABT245BRGYR

Octal Bus Transceivers with 3-State Outputs

Packaging

Package | PIN: RGY | 20
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $0.73
10-24 $0.65
25-99 $0.59
100-249 $0.50
250-499 $0.45
500-749 $0.35
750-999 $0.27
1000+ $0.23

Features

  • Typical VOLP (Output Ground Bounce)
       <1 V at VCC = 5 V, TA = 25°C
  • Ioff and Power-Up 3-State Support Hot Insertion
  • High-Drive Outputs (–32-mA IOH, 64-mA IOL)
  • Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Texas Instruments  SN74ABT245BRGYR

These octal bus transceivers are designed for asynchronous communication between data buses. The devices transmit 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 hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.