Key facts
- Brand
- Atmel
- Model
- TS80C31X2
- Industry
- Industrial
- Documents
- 4
- Languages
- EN
- Last added
- 2012-08-08
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ATMEL TS80C31X2 AT80C31X2 handbook
The TS80C31X2 is a high‑performance CMOS, ROM‑less 8‑bit microcontroller compatible with the 80C51 family. It offers four 8‑bit I/O ports, two 16‑bit timer/counters, 128 bytes of internal RAM, and an X2 speed‑improvement option that reduces the machine‑cycle to six clocks.
This manual describes the device’s features, pin‑out, special‑function register map, power‑mode operation (idle, power‑down, ONCE), and the X2 feature. Package options (PDIL40, PLCC44, VQFP44) and temperature ranges are also listed.
Atmel TS80C31X2 specifications
| Internal RAM size | 128 bytes |
|---|---|
| Maximum frequency at 5V | 40 MHz |
| Power supply voltage (Commercial) | 4.5-5.5V |
| Temperature range (Industrial) | -40 to 85°C |
Source: Atmel TS80C31X2 8-bit CMOS Microcontroller ROMless Datasheet
All Atmel TS80C31X2 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What are the available package types?
The TS80C31X2 is available in PDIL40, PLCC44, VQFP44 1.4, and PQFP F1(13.9 footprint) packages.
From: Atmel TS80C31X2 8-bit CMOS Microcontroller ROMless Datasheet
Does the device support power-down mode?
Yes, in power-down mode the RAM is saved and all other functions are inoperative to reduce power consumption.
From: Atmel TS80C31X2 8-bit CMOS Microcontroller ROMless Datasheet
What power‑down modes are available?
The device supports an idle mode where the CPU is frozen while peripherals run, and a power‑down mode where RAM is saved and most functions stop.
What is the maximum operating frequency?
In standard mode the TS80C31X2 runs up to 40 MHz at 5 V (30 MHz at 3 V); in X2 mode it can reach 60 MHz at 5 V (40 MHz at 3 V).
What does the X2 feature do?
The X2 option reduces the core cycle to 6 clock periods per machine cycle, allowing either double CPU speed or halving the crystal frequency.
How many I/O ports are available on the TS80C31X2?
The device provides four 8‑bit I/O ports.