DESCRIPTION

The OM5202 8-Bit ROMless Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The OM5202 has the same instruction set as the 80C51.

FEATURES

• 80C51 central processing unit

• no internal ROM, externally up to 64k bytes

• 256 × 8 RAM, expandable externally to 64k bytes

• Two standard 16-bit timer/counters

• Four 8-bit I/O ports

• Two open drain I/O’s (P1.6, P1.7)

• Full-duplex UART facilities

• Power control modes

– Idle mode

– Power-down mode

• Operating frequency range: 1.2 to 16 MHz

• Operating ambient temperature range: 0 to +70°C