FEATURES

• Synchronous operation

• One or two synchronous characters

• Internal/external synchronization

• Automatic SYNC character insertion

• Asynchronous operation

• Clock rate (baud rate): ×1, ×16, or ×64

− Send stop bits: 1, 1.5, or 2 bits

− Break transmission

− Automatic break detection

− Valid start bit detection

• Baud rate: DC ~ 660 Kb/s at ×1 clock

• Full-duplex, double-buffered transmitter/receiver

• Error detection: parity, overrun, and framing

• Five- to eight-bit characters

• Low-power standby mode

• Compatible with standard microcontrollers

• Functionally equivalent to (except in standby mode) and can replace the μ PD8251AF

• CMOS process technology

• Single +5V ±10 power supply

• Industrial temperature range (Ambient): –40 to 85°C

• 44-pin QFP package

• RoHS-compliant