Packaging information
| Package | Pins LCCC (FK) | 20 |
| Operating temperature range (°C) -55 to 125 |
| Package qty | Carrier 55 | TUBE |
Features for the SN54ABT245A
- 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)
Description for the SN54ABT245A
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.