Atmel AT83C51RB2
The TS8xC51Rx2 retains all features of the 80C51 with extended ROM/EPROM capacity (16/32/64 Kbytes), 256 bytes of internal RAM, a 7-source , 4-level interrupt system, an on-chip oscilator and three timer/counters. The fully static design of the TS80C51Rx2 allows to reduce system power consumption by bringing the clock frequency down to any value, even DC, without loss of data.| Part No. | AT83C51RB2 |
|---|---|
| Datasheet | AT83C51RB2 Download |
| Manufacturer |  Atmel |
| Description | High Performance 8-bit Microcontroller |
| Buy | Stock & Price |
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 Cont...
