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AT87C5111-3ZSIL Datasheet

  • AT87C5111-3ZSIL

  • Low Pin Count 8-bit Microcontroller with A/D Converter

  • 999.16KB

  • 86頁

  • ATMEL   ATMEL

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Features
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80C51 Compatible
鈥?Three I/O Ports
鈥?Two 16-bit Timer/Counters
鈥?256 Bytes RAM
4K Bytes ROM/OTP Program Memory with 64 Bytes Encryption Array and 3 Security
Levels
High-Speed Architecture
鈥?33 MHz at 5V (66 MHz Equivalent)
鈥?20 MHz at 3V (40 MHz Equivalent)
鈥?X2 Speed Improvement Capability (6 Clocks/Machine Cycle)
10-bit, 8 Channels A/D Converter
Hardware Watchdog Timer
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
鈥?Crystal or Ceramic Oscillator (33/40 MHz)
鈥?Internal RC Oscillator (12 MHz)
鈥?Programmable Prescaler
Programmable Counter Array with High-speed Output, Compare/Capture, Pulse Width
Modulation and Watchdog Timer Capabilities
Interrupt Structure
鈥?8 Interrupt Sources
鈥?4 Interrupt Priority Levels
Power Control Modes
鈥?Idle Mode
鈥?Power-down Mode
鈥?Power-off Flag
Power Supply: 2.7 - 5.5V
Temperature Range: Industrial (-40 to 85
o
C)
Package: SO24, DIL24, SSOP24
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Low Pin Count
8-bit
Microcontroller
with A/D
Converter
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AT83C5111
AT87C5111
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Description
The AT8xC5111 is a high-performance ROM/OTP version of the 80C51 8-bit micro-
controller in low pin count package.
The AT8xC5111 retains all the features of the standard 80C51 with 4K Bytes
ROM/OTP program memory, 256 bytes of internal RAM, an 8-source, 4-level interrupt
system, an on-chip oscillator and two timer/counters.
The AT8xC5111 is dedicated for analog interfacing applications. For this, it has a 10-
bit, 8 channels A/D converter and a five-channel Programmable Counter Array.
In addition, the AT8xC5111 has a Hardware Watchdog Timer, a versatile serial chan-
nel that facilitates multiprocessor communication (EUART) with an independent baud
rate generator, an SPI serial bus controller and a X2 speed improvement mechanism.
The X2 feature permits keeping the same CPU power at an oscillator frequency
divided by two. The prescaler allows to decrease CPU and peripherals clock
frequency.
The fully static design of the AT8xC5111 can reduce system power consumption by
bringing the clock frequency down to any value, even DC, without loss of data.
The AT8xC5111 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, only the A/D converter is operating.
Rev. 4190A鈥?051鈥?1/02

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