C513AO-L

8Bit CMOS Microcontroller

• Full upward compatibility with standard 8051 microcontroller

• Up to 16 MHz external operating frequency

– 750 ns instruction cycle at 16 MHz operation

• On-chip program memory

– C513AO-2R: 16 Kbytes ROM with optional ROM protection

– C513AO-2E: 16 Kbytes OTP

– : version without on-chip program memory ROMless

• Up to 64K byte external data memory

•256 ×8 RAM

•256 ×8 XRAM

• Four 8-bit digital I/O ports

• Three 16-bit timers/counters Timer 2 with Up/Down and 16-bit auto-reload features

• Full duplex serial interface USART

• Synchronous Serial Channel SSC

• Seven interrupt sources with two priority levels

• On-chip emulation support logic Enhanced Hooks Emulation Technology™