This datasheet introduces TS80C51RA2/RD2, TS83C51RB2/RC2/RD2, TS87C51RB2/RC2/RD2 three types of Atmel high performance CMOS ROM, OTP, EPROM and ROMless versions of the 80C51 CMOS single chip 8-bit microcontrollers.
This document is a technical datasheet for the Atmel TS80C51Rx2 series of high-performance 8-bit microcontrollers. The devices are CMOS single-chip microcontrollers compatible with the 80C51 architecture, offering extended ROM/EPROM capacities of 16, 32, or 64 Kbytes and 256 bytes of internal RAM. Key features include a 7-source, 4-level interrupt system, an on-chip oscillator, three timer/counters, a Programmable Counter Array (PCA), and an enhanced serial channel (EUART). The series also supports X2 speed improvement, a Hardware Watchdog Timer, and various power control modes such as Idle and Power-down to reduce system power consumption.
| Architecture Compatibility | 80C52 Compatible |
|---|---|
| Internal RAM | 256 bytes |
| Interrupt System | 7 sources, 4-level |
| Timer/Counters | Three 16-bit |
| Max Clock Frequency (5V) | 40 MHz |
| Max Clock Frequency (3V) | 30 MHz |
| ROM Capacity | 16/32/64 Kbytes |
| Power Supply (Commercial) | 4.5-5V |
| Temperature Range (Commercial) | 0 to 70°C |
| Temperature Range (Industrial) | -40 to 85°C |
The maximum clock frequency is 40 MHz at 5V.
The microcontroller has 256 bytes of internal RAM.
Yes, the TS80C51Rx2 is 80C52 compatible.