AT89C51AC3 带有64K系统内可编程FLash存储器

8-bit microcontroller with A/D converter and 64-Kbyte Flash. 2-Kbyte RAM, 2-Kbyte EEPROM, SPI. Power Fail Detect (no need for external brown- out). Pinout compatible with T89C51AC2.

The AT89C51AC3 is a high performance Flash version of the 80C51 single chip 8-bit microcontrollers.
In X2 mode a maximum external clock rate of 20 MHz reaches a 300 ns cycle time. Besides the AT89C51AC3 provides 64K Bytes of Flash memory including In-System Programming (ISP) and IAP, 2K Bytes Boot Flash Memory, 2K Bytes EEPROM and 2048 byte ERAM.Primary attention is paid to the reduction of the electro-magnetic emission of AT89C51AC3.

AT89C51AC3 特性

• 80C51 Core Architecture
• 256 Bytes of On-chip RAM
• 2048 Bytes of On-chip ERAM
• 64K Bytes of On-chip Flash Memory
  – Data Retention: 10 Years at 85°C
  – Read/Write Cycle: 100K
• Boot Code Section with Independent Lock Bits
• 2K Bytes of On-chip Flash for Bootloader
• In-System Programming by On-Chip UART Boot Program and IAP Capability
• 2K Bytes of On-chip EEPROM
  Read/Write Cycle: 100K
• Integrated Power Monitor (POR: PFD) To Supervise Internal Power Supply
• 14-sources 4-level Interrupts
• Three 16-bit Timers/Counters
• Full Duplex UART Compatible 80C51
• High-speed Architecture
  – In Standard Mode:
  40 MHz (Vcc 3V to 5.5V, both Internal and external code execution)
  60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)
  – In X2 mode (6 Clocks/machine cycle)
  20 MHz (Vcc 3V to 5.5V, both Internal and external code execution)
  30 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)
• Five Ports: 32 + 4 Digital I/O Lines
• Five-channel 16-bit PCA with
  – PWM (8-bit)
  – High-speed Output
  – Timer and Edge Capture
• Double Data Pointer
• 21-bit WatchDog Timer (7 Programmable Bits)
• A 10-bit Resolution Analog to Digital Converter (ADC) with 8 Multiplexed Inputs
• SPI Interface (PLCC52 and VPFP64 packages only)
• On-chip Emulation Logic (Enhanced Hook System)
• Power Saving Modes
  – Idle Mode
  – Power-down Mode
• Power Supply: 3 volts to 5.5 volts
• Temperature Range: Industrial (-40° to +85°C)
• Packages: VQFP44, PLCC44, VQFP64, PLCC52

AT89C51AC3 订购型号

AT89C51AC3 技术支持

1. AT89C51AC3 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