AT83EB5114 带AD转换功能8位单片机

AT83EB5114 概述

The AT8xEB5114 is a high performance version of the 80C51 8-bit microcontroller in a Low Pin Count package.

The AT8xEB5114 retains all the features of the standard 80C51 with 4 Kbytes program memory, 256 bytes of internal RAM, a 7-source, 4-level interrupt system, an onchip oscillator and two timers/counters. AT8xEB5114 may include a serial two wire interface EEPROM housed together with the microcontroller die in the same package.

The AT8xEB5114 is dedicated for analog interfacing applications. For this, it has a 10- bit, 6 channels A/D converter and two PWM units; these PWM blocks provide PWM generation with variable frequency and pulse width.

In addition, the AT8xEB5114 has a Hardware Watchdog Timer and an X2 speed improvement mechanism. The X2 feature allows to keep the same CPU power at a divided by two oscillator frequency. The prescaler allows to decrease CPU and peripherals clock frequency. The fully static design of the AT8xEB5114 allows to reduce system power consumption by bringing the clock frequency down to any value, even DC, without loss of data.

The AT8xEB5114 has 3 software-selectable modes of reduced activity for further reduction in power consumption. In idle mode the CPU is frozen while the peripherals are still operating. In quiet mode, only the A/D converter is operating. In power-down mode the RAM is saved and all other functions are inoperative. Three oscillator sources, crystal, precision RC and low power RC, provide versatile power management.

AT83EB5114 特性

• 80C51 Compatible
  – Two I/O Ports
  – Two 16-bit Timer/Counters
  – 256 bytes RAM
• 4 Kbytes ROM or 4 Kbytes Flash Program Memory
• 256 bytes EEPROM (Stack Die Packaging Technology on SO20 Package)
• X2 Speed Improvement Capability (6 Clocks/Machine Cycle)
• 10-bit, 6 Channels A/D Converter
  – One-channel with Progammable Gain and Rectifying Amplifier (Accuracy +/- 5%)
  – Voltage Reference for A/D External Analog
• Hardware Watchdog Timer
• Programmable I/O Mode: Standard C51, Input Only, Push-pull, Open Drain
• Asynchronous Port Reset
• Triple System Clock
  – Crystal or Ceramic Oscillator (24 MHz)
  – RC Oscillator (12 MHz), with Calibration Factor Using External R and C
  (Accuracy +/- 3.5% with Ideal R and C)
  – RC Oscillator, Low Power Consumption (12 MHz Low Accuracy)
  – Programmable Prescaler
• One PWM Unit Block With:
  – 16-bits Programmable Counter
  – 3 Independent Modules
• One PWM Unit Block with:
  – 16 bits Programmable Counter
  – 1 Module
• Interrupt Structure With:
  – 7 Interrupt Sources,
  – 4 interrupt Priority Levels
• Power Control Modes:
  – Idle Mode
  – Power-down Mode
  – Power Fail Detect, Power On Reset
  – Quiet mode for A to D Conversion
• Power Supply: 3 to 3.6V
• Temperature Range: -40 to 85o C
• Package: SO20, SO24 (upon request)

AT83EB5114 技术支持

1. AT83EB5114 数据手册DataSheet 下载. PDF
2. 80C51微控制器的复位输入. PDF (编号: Tech 8051 00049)
3. 80C51在系统Flash编程. PDF (编号:8051 00050)
4. Device Programmers for 8051 Devices (Other, updated 09/07)
   This Excel spreadsheet provide summary information on device programmers supporting Atmel 8051 microcontrollers
5. Emulators for 80C51 Devices (Other, updated 11/03)
   This Excel spreadsheet provide summary information on emulation support for Atmel 80C51 microcontrollers
6. Package Adapters of 80C51 Devices (Other, updated 10/04)
   This Excel spreadsheet list available package adapters for Atmel 80C51 microcontrollers