A/D Converter. AT83C5112 Datasheet

AT83C5112 Datasheet PDF, Equivalent


Part Number

AT83C5112

Description

8-bit Microcontroller with A/D Converter

Manufacture

ATMEL Corporation

Total Page 30 Pages
PDF Download
Download AT83C5112 Datasheet PDF


AT83C5112 Datasheet
Features
80C51 Compatible
– Five I/O Ports
– Two 16-bit Timer/Counters
– 256 Bytes RAM
8K Bytes ROM/OTP Program Memory with 64 Bytes Encryption Array and 3 Security
Levels
High-Speed Architecture
33 MHz at 5V (66 MHz Equivalent)
X2 Speed Improvement Capability (6 Clocks/Machine Cycle)
10-bit, 8 Channels A/D Converter
Hardware Watchdog Timer with Reset-out
Programmable I/O Mode: Standard C51, Input Only, Push-pull, Open Drain
Asynchronous Port Reset
Full Duplex Enhanced UART with Baud Rate Generator
SPI, Master Mode
Dual System Clock
Crystal or Ceramic Oscillator (33/40 MHz)
Internal RC Oscillator (12 MHz)
Programmable Prescaler
Programmable Counter Array with High-speed Output, Compare/Capture, Pulse Width
Modulation and Watchdog Timer Capabilities
Interrupt Structure
8 Interrupt Sources
4 Interrupt Priority Levels
Power Control Modes
Idle Mode
Power-down Mode
Power-off Flag
Power Supply: 2.7 - 5.5V
Temperature Range: Industrial (-40 To 85°C)
Package: LQFP48 (Body 7*7*1.4 mm), PLCC52
8-bit
Microcontroller
with A/D
Converter
AT80C5112
AT83C5112
AT87C5112
Description
The AT8xC5112 is a high performance ROM/OTP version of the 80C51 8-bit
microcontroller.
The AT8xC5112 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 AT8xC5112 is dedicated for analog interfacing applications. For this, it has a 10-
bit, 8 channels A/D converter and a five channels Programmable Counter Array.
In addition, the AT8xC5112 has a Hardware Watchdog Timer, a versatile serial chan-
nel 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 AT8xC5112 allows to reduce system power consumption
by bringing the clock frequency down to any value, even DC, without loss of data.
Rev. 4191B–8051–04/03

AT83C5112 Datasheet
Block Diagram
The AT8xC5112 has 3 software-selectable modes of reduced activity for further reduc-
tion 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 is only 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 AT8xC5112 is proposed in 48-/52-pin count packages with Port 0 and Port 2
(address/
data buses).
(2)
XTAL1
(2)
XTAL2
Xtal
Osc
RST
EA
ALE
PSEN
RC
Osc
(2) (2)
CPU
EUART
BRG
RAM
256
x8
C51
CORE
IB-bus
ROM /OTP
8 K *8
(1) (1) (3)(3) (3) (3)
PCA
SPI
Watch
Dog
Timer 0
Timer 1
INT
Ctrl
(2) (2) (3) (2) (3)
A/D
Converter
Parallel I/O Ports
Port 1 Port 3 Port 4 Port 0 Port 2
(3)
Notes: 1. Alternate function of Port 1.
2. Alternate function of Port 3.
3. Alternate function of Port 4.
2 AT8xC5112
4191B805104/03


Features Datasheet pdf Features • 80C51 Compatible – Five I /O Ports – Two 16-bit Timer/Counters – 256 Bytes RAM 8K Bytes ROM/OTP Prog ram Memory with 64 Bytes Encryption Arr ay and 3 Security Levels High-Speed Arc hitecture – 33 MHz at 5V (66 MHz Equi valent) – X2 Speed Improvement Capabi lity (6 Clocks/Machine Cycle) 10-bit, 8 Channels A/D Converter Hardware Watchd og Timer with Reset-out Programmable I/ O Mode: Standard C51, Input Only, Push- pull, Open Drain Asynchronous Port Rese t Full Duplex Enhanced UART with Baud R ate Generator SPI, Master Mode Dual Sys tem Clock – Crystal or Ceramic Oscill ator (33/40 MHz) – Internal RC Oscill ator (12 MHz) – Programmable Prescale r Programmable Counter Array with High- speed Output, Compare/Capture, Pulse Wi dth Modulation and Watchdog Timer Capab ilities Interrupt Structure – 8 Inter rupt Sources – 4 Interrupt Priority L evels Power Control Modes – Idle Mode – Power-down Mode – Power-off Flag Power Supply: 2.7 - 5.5V Temperature Range: Industrial (-40 To 85°C) Package: LQFP48 (Body.
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