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Atmel Electronic Components Datasheet

TS80C31X2 Datasheet

8-bit CMOS Microcontroller

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Features
80Cw3w1wC.DoamtaSphaetiebt4leU.com
8031 pin and instruction compatible
Four 8-bit I/O ports
Two 16-bit timer/counters
128 bytes scratchpad RAM
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)
Dual Data Pointer
Asynchronous port reset
Interrupt Structure with
5 Interrupt sources,
4 priority level interrupt system
Full duplex Enhanced UART
Framing error detection
Automatic address recognition
Power Control modes
Idle mode
Power-down mode
Power-off Flag
Once mode (On-chip Emulation)
Power supply: 4.5-5.5V, 2.7-5.5V
Temperature ranges: Commercial (0 to 70oC) and Industrial (-40 to 85oC)
Packages: PDIL40, PLCC44, VQFP44 1.4, PQFP F1 (13.9 footprint)
8-bit CMOS
Microcontroller
ROMless
TS80C31X2
AT80C31X2
1. Description
TS80C31X2 is high performance CMOS and ROMless versions of the 80C51 CMOS
single chip 8-bit microcontroller.
The TS80C31X2 retains all features of the 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.
4428E–8051–02/08


Atmel Electronic Components Datasheet

TS80C31X2 Datasheet

8-bit CMOS Microcontroller

No Preview Available !

2. Block Diagram
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XTAL1
XTAL2
ALE/ PROG
PSEN
EA
RD (1)
WR (1)
(1) (1)
EUART
RAM
128x8
CPU
C51
CORE
IB-bus
Timer 0
Timer 1
INT
Ctrl
(1) (1) (1) (1)
Parallel I/O Ports & Ext. Bus
Port 0Port 1 Port 2 Port 3
(1): Alternate function of Port 3
2 AT/TS80C31X2
4428E–8051–02/08


Part Number TS80C31X2
Description 8-bit CMOS Microcontroller
Maker ATMEL
Total Page 30 Pages
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