TS80C31X2 Datasheet, PDF (1/40 Pages) ATMEL Corporation – 8-bit CMOS Microcontroller ROMless

8-bit CMOS Microcontroller 0-60 MHz
TS80C31X2
1. Description
TEMIC TS80C31X2 is high performance CMOS and
ROMless versions of the 80C51 CMOS single chip 8-
bit microcontroller.
The TS80C31X2 retains all features of the TEMIC
TSC80C31 with 128 bytes of internal RAM, a 5-source,
4 priority level interrupt system, an on-chip oscilator
and two timer/counters.
In addition, the TS80C31X2 has a dual data pointer, a
more versatile serial channel that facilitates
multiprocessor communication (EUART) and a X2 speed
improvement mechanism.
The fully static design of the TS80C31X2 allows to
reduce system power consumption by bringing the clock
frequency down to any value, even DC, without loss of
data.
The TS80C31X2 has 2 software-selectable modes of
reduced activity for further reduction in power
consumption. In the idle mode the CPU is frozen while
the timers, the serial port and the interrupt system are still
operating. In the power-down mode the RAM is saved
and all other functions are inoperative.
2. Features
q 80C31 Compatible
• 8031 pin and instruction compatible
• Four 8-bit I/O ports
• Two 16-bit timer/counters
• 128 bytes scratchpad RAM
q 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)
q Dual Data Pointer
q Asynchronous port reset
q Interrupt Structure with
• 5 Interrupt sources,
• 4 priority level interrupt system
q Full duplex Enhanced UART
• Framing error detection
• Automatic address recognition
q Power Control modes
• Idle mode
• Power-down mode
• Power-off Flag
q Once mode (On-chip Emulation)
q Power supply: 4.5-5.5V, 2.7-5.5V
q Temperature ranges: Commercial (0 to 70^oC) and
Industrial (-40 to 85^oC)
q Packages: PDIL40, PLCC44, VQFP44 1.4, PQFP F1
(13.9 footprint)
Rev. A - Mar. 19, 1999
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Preliminary