RS245
FEATURES
- Power-Supply Range:1.65V to 5.5V
- VCC Isolation: If VCC is at GND, Both Ports are in the High-Impedance State
- IOFF: Supports Partial-Power-Down Mode
Operation
- Extended Temperature: -40°C to +125°C
APPLICATIONS
- Handset
- Smartphone
- Tablet
- Desktop PC
DESCRIPTION
The RS245 is designed for asynchronous munication between two data buses. The logic levels of the directioncontrol (DIR) input and the output-enable ( O̅̅̅E̅ ) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ. This device is fully specified for partial-power-down applications using IOFF. The IOFF circuitry disables the outputs, preventing...
