Rev. B - Aug. 24, 1999
1
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
8-bit CMOS Microcontroller 0-60 MHz
1. Description
TEMIC TS80C51Rx2 is high performance CMOS ROM,
OTP, EPROM and ROMless versions of the 80C51
CMOS single chip 8-bit microcontroller.
The TS80C51Rx2 retains all features of the TEMIC
80C51 with extended ROM/EPROM capacity (16/32/64
Kbytes), 256 bytes of internal RAM, a 7-source , 4-level
interrupt system, an on-chip oscilator and three timer/
counters.
In addition, the TS80C51Rx2 has a Programmable
Counter Array, an XRAM of 256 or 768 bytes, a
Hardware Watchdog Timer, a more versatile serial
channel that facilitates multiprocessor communication
(EUART) and a X2 speed improvement mechanism.
The fully static design of the TS80C51Rx2 allows to
reduce system power consumption by bringing the clock
frequency down to any value, even DC, without loss of
data.
The TS80C51Rx2 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
80C52 Compatible
8051 pin and instruction compatible
Four 8-bit I/O ports
Three 16-bit timer/counters
256 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
On-chip ROM/EPROM (16K-bytes, 32K-bytes, 64K-
bytes)
q
On-chip eXpanded RAM (XRAM) (256 or 768 bytes)
q
Programmable Clock Out and Up/Down Timer/
Counter 2
q
Programmable Counter Array with
High Speed Output,
Compare / Capture,
Pulse Width Modulator,
Watchdog Timer Capabilities
q
Hardware Watchdog Timer (One-time enabled with
Reset-Out)
q
2 extra 8-bit I/O ports available on RD2 with high
pin count packages
q
Asynchronous port reset
q
Interrupt Structure with
7 Interrupt sources,
4 level priority interrupt system
q
Full duplex Enhanced UART
Framing error detection
Automatic address recognition
q
Low EMI (inhibit ALE)
q
Power Control modes
Idle mode
Power-down mode
Power-off Flag
q
Once mode (On-chip Emulation)
q
Power supply: 4.5-5V, 2.7-5.5V
q
Temperature ranges: Commercial (0 to 70oC) and
Industrial (-40 to 85oC)
q
Packages: PDIL40, PLCC44, VQFP44 1.4, CQPJ44
(window), CDIL40 (window), PLCC68, VQFP64
1.4, JLCC68 (window)