TS80C52X2 is a high performance CMOS ROM, OTP, EPROM and ROMless versions of the 80C51 CMOS single chip 8-bit microcontroller. The TS80C52X2 retains all features of the 80C51 with extended ROM/EPROM capacity (8 Kbytes), 256 bytes of internal RAM, a 6-source, 4-level interrupt system, an on-chip oscillator and three timer/counters. In addition, the TS80C52X2 has a dual data pointer, a more versatile serial channel that facilitates multiprocessor communication (EUART) and an X2 speed improvement mechanism.
The handbook describes the TS80C52X2 family of 8‑bit microcontrollers, including variants TS80C32X2, TS87C52X2, AT80C32X2, AT80C52X2 and AT87C52X2. It lists the core features such as four 8‑bit I/O ports, three 16‑bit timers/counters, 256 bytes scratchpad RAM and an on‑chip ROM/EPROM of up to 8 Kbytes.
Detailed sections cover memory size tables, block diagrams, special‑function‑register (SFR) mapping, pin configuration, enhanced X2 speed mode, power‑down options and ordering information. Contact details for Atmel worldwide offices are also provided.
| On‑chip ROM/EPROM | 8 Kbytes |
|---|---|
| Scratchpad RAM | 256 bytes |
| I/O Ports | Four 8‑bit ports |
| Timer/Counters | Three 16‑bit |
| Power Supply Voltage | 4.5 – 5.5 V, 2.7 – 5.5 V |
| Operating Temperature | Commercial 0 – 70 °C, Industrial -40 – 85 °C |
| Maximum Frequency | 40 MHz at 5 V, 30 MHz at 3 V |
| Package Types | PDIL40, PLCC44, VQFP44 1.4, PQFP44 |
| Interrupt Sources | 6 sources with 4‑level priority |
It operates from 4.5 V to 5.5 V, and also from 2.7 V to 5.5 V in low‑voltage mode.
The device provides six interrupt sources with a four‑level priority interrupt system.
In X2 mode the core can run at up to 40 MHz (30 MHz at 3 V).
Available packages include PDIL40, PLCC44, VQFP44 1.4 and PQFP44.