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 AT80C32X2 is an 8‑bit CMOS microcontroller compatible with the 80C51 family. It offers four 8‑bit I/O ports, three 16‑bit timer/counters, a full‑duplex UART, dual data pointer, and X2 speed‑up capability, delivering up to 40 MHz at 5 V. Power‑saving modes such as Idle, Power‑down and Once mode help reduce consumption.
The device is available in several packages (PDIL40, PLCC44, VQFP44 1.4, PQFP44) and supports 8 KB of on‑chip ROM/EPROM, 256 bytes of RAM, and a wide supply voltage range (2.7 V – 5.5 V). Detailed pin‑out tables, SFR mappings, and ordering information are included for designers.
| Maximum CPU frequency | 40 MHz at 5 V (30 MHz at 3 V) |
|---|---|
| Supply voltage | 2.7 V – 5.5 V |
| Temperature range | Commercial 0 °C – 70 °C, Industrial -40 °C – 85 °C |
| On‑chip ROM/EPROM | 8 KB |
| Internal RAM | 256 bytes |
| I/O ports | Four 8‑bit ports |
| Timer/Counters | Three 16‑bit |
| Available packages | PDIL40, PLCC44, VQFP44 1.4, PQFP44 |
The device can run up to 40 MHz when supplied with 5 V (or 30 MHz at 3 V).
It is offered in PDIL40, PLCC44, VQFP44 1.4 and PQFP44 packages.
The chip includes 8 KB of ROM/EPROM and 256 bytes of internal RAM.
Idle mode, Power‑down mode, Power‑off flag, and Once mode are supported.