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T84C5112-S3UEL Datasheet(PDF) 1 Page - ATMEL Corporation

Part # T84C5112-S3UEL
Description  8-bit Microcontroller with A/D converter
Download  97 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T84C5112-S3UEL Datasheet(HTML) 1 Page - ATMEL Corporation

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Rev. B - November 10, 2000
1
Preliminary
T80C5112
8-bit Microcontroller with A/D converter
1. Description
The T80C5112 is a high performance ROM/OTP version
of the 80C51 8-bit microcontroller.
The T80C5112 retains all the features of the standard
80C51 with 8 Kbytes ROM/OTP program memory, 256
bytes of internal RAM, a 8-source , 4-level interrupt
system, an on-chip oscillator and two timer/counters.
The T80C5112 is dedicated for analog interfacing
applications. For this, it has an 10-bit, 8 channels A/D
converter and a five channels Programmable Counter
Array.
In addition, the T80C5112 has a Hardware Watchdog
Timer with its own low power oscillator, a versatile
serial
channel
that
facilitates
multiprocessor
communication (EUART) with an independent baud rate
generator, a SPI serial bus controller and a X2 speed
improvement mechanism. The X2 feature allows to keep
the same CPU power at a divided by two oscillator
frequency.
The fully static design of the T80C5112 allows to reduce
system power consumption by bringing the clock
frequency down to any value, even DC, without loss of
data.
The T80C5112 has 3 software-selectable modes of
reduced
activity
for
further
reduction
in
power
consumption. In the idle mode the CPU is frozen while
the peripherals are still operating. In the quiet mode, the
A/D converter only is operating. In the power-down
mode the RAM is saved and all other functions are
inoperative. Two oscillators source, crystal and RC,
provide a versatile power management.
The T80C5112 is proposed in 48/52 pin count packages
with Port 0 and Port 2 (address / data busses).
2. Features
· 80C51 Compatible
·
Five I/O ports
·
Two 16-bit timer/counters
·
256 bytes RAM
· 8Kbytes ROM/OTP program memory with 64 bytes
encryption array and 3 security levels.
· High-Speed Architecture
·
33MHz @ 5V (66 MHz equivalent)
·
20MHz @ 3V (40 MHz equivalent)
·
X2 Speed Improvement capability (6 clocks/
machine cycle)
· 10-bit, 8 channels A/D converter
· Hardware Watchdog Timer with integrated low
power oscillator (20
m A) and Reset-Out
· Programmable I/O mode: standard C51, input only,
push-pull, open drain.
· Asynchronous port reset, Power On Reset
· Full duplex Enhanced UART with baud rate generator
· SPI, master/slave mode
· Dual system clock
·
Crystal or ceramic oscillator with hardware set
up (32 KHz or 33/40 MHz)
·
Internal RC oscillator (12 MHz)
·
Programmable prescaler
·
Active oscillator during reset defined by hardware
set up
·
Timer 0 subclock mode for Real Time Clock.
· Programmable counter array with High speed output,
Compare / Capture, Pulse Width Modulation and
Watchdog timer capabilities
· Interrupt Structure with:
·
8 Interrupt sources,
·
4 interrupt priority levels
· Power Control modes:
·
Idle mode
·
Power-down mode
·
Power-off Flag, Power fail detect, Power on Reset
· Power supply: 2.7 to 5.5V
· Temperature ranges: Commercial (0 to 70C) and
Industrial (-40 to 85 C), optionnal extented
· Package:LQFP48 (body 7*7*1.4mm), PLCC52


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