AT83C51RC2

1. Features 80C52 Compatible – 8051 pin and instruction compatible – Four 8-bit I/O ports – Three 16-bit timer/counters – 256 bytes scratchpad RAM High-Speed Architecture – 40 MHz @ 5V, 30MHz @ 3V – X2 Speed Improvement capability (6 clocks/machine cycle) – 30 MHz @ 5V, 20 MHz @ 3V (Equivalent to – 60 MHz @ 5V, 40 MHz @ 3V) Dual Data Pointer On-chip ROM/EPROM (16K-bytes, 32K-bytes, 64K-bytes) On-chip eXpanded RAM (XRAM) (256 or 768 bytes) Programmable Clock Out and Up/Down Timer/Counter 2 Programmable Counter Array with – High Speed Output, – Compare / Capture, – Pulse Width Modulator, – Watchdog Timer Capabilities Hardware Watchdog Timer (One-time enabled with Reset-Out) 2 extra 8-bit I/O ports available on RD2 with high pin count packages Asynchronous port reset Interrupt Structure with – 7 Interrupt sources, – 4 level priority interrupt system Full duplex Enhanced UART – Framing error detection – Automatic address recognition Low EMI (inhibit ALE) Power Control modes – Idle mode – Power-down mode – Power-off Flag Once mode (On-chip Emulation) Power supply: 4.5-5V, 2.7-5.5V Temperature ranges: Commercial (0 to 70oC) and Industrial (-40 to 85oC) Packages: PDIL40, PLCC44, VQFP44 1.4, PLCC68, VQFP64 1.4 2. Description Atmel TS8xC51Rx2 is a high performance CMOS ROM, OTP, EPROM and ROMless versions of the 80C51 CMOS single chip 8-bit microcontroller. The TS8xC51Rx2 retains all features of the 80C51 with extended ROM/EPROM capacity (16/32/64 K...