Features
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80C52 Compatible
– 8051 Pin and Instruction Compatible
– Four 8-bit I/O Ports
– Three 16-bit Timer/Counters
– 256 Bytes Scratchpad RAM
High-speed Architecture
40 MHz at 5V, 30 MHz at 3V
X2 Speed Improvement Capability (6 Clocks/Machine Cycle)
– 30 MHz at 5V, 20 MHz at 3V (Equivalent to 60 MHz at 5V, 40 MHz at 3V)
Dual Data Pointer
On-chip ROM/EPROM (8Kbytes)
Programmable Clock Out and Up/Down Timer/Counter 2
Asynchronous Port Reset
Interrupt Structure with
– 6 Interrupt Sources
– 4 Level Priority Interrupt System
Full Duplex Enhanced UART
– Framing Error Detection
– Automatic Address Recognition
Low EMI (Inhibit ALE)
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 70
o
C) and Industrial (-40 to 85
o
C)
Packages: PDIL40, PLCC44, VQFP44 1.4, PQFP44 (13.9 footprint)
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8-bit
Microcontroller
8 Kbytes
ROM/OTP,
ROMless
TS80C32X2
TS87C52X2
TS80C52X2
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Description
TS80C52X2 is 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 oscilator 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 improve-
ment mechanism.
The fully static design of the TS80C52X2 allows to reduce system power consumption
by bringing the clock frequency down to any value, even DC, without loss of data.
The TS80C52X2 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.
Rev. 4184E–8051–09/02
TS8xCx2X2
SFR Mapping
The Special Function Registers (SFRs) of the TS80C52X2 fall into the following
categories:
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C51 core registers: ACC, B, DPH, DPL, PSW, SP, AUXR1
I/O port registers: P0, P1, P2, P3
Timer registers: T2CON, T2MOD, TCON, TH0, TH1, TH2, TMOD, TL0, TL1, TL2,
RCAP2L, RCAP2H
Serial I/O port registers: SADDR, SADEN, SBUF, SCON
Power and clock control registers: PCON
Interrupt system registers: IE, IP, IPH
Others: AUXR, CKCON
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4184E–8051–09/02
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