Features

• 80C51 Core Architecture
• 256 Bytes of On-chip RAM
• 256 Bytes of On-chip XRAM
• 16K Bytes of On-chip Flash Memory
  • Data Retention: 10 Years at 85°C
  • Erase/Write Cycle: 100K
• Boot Code Section with Independent Lock Bits
• 2K Bytes of On-chip Flash for Bootloader
• In-System Programming by On-Chip Boot Program (CAN, UART) and IAP Capability
• 2K Bytes of On-chip EEPROM
  • Erase/Write Cycle: 100K
• 14-sources 4-level Interrupts
• Three 16-bit Timers/Counters
• Full Duplex UART Compatible 80C51
• Maximum Crystal Frequency 40 MHz. In X2 Mode, 20 MHz (CPU Core, 40 MHz)
• Three or Four Ports: 16 or 20 Digital I/O Lines
• Two-channel 16-bit PCA
  • 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
  • Full CAN Controller
    • Fully Compliant with CAN rev.# 2.0A and 2.0B
    • Optimized Structure for Communication Management (Via SFR)
    • 4 Independent Message Objects
      • Each Message Object Programmable on Transmission or Reception
      • Individual Tag and Mask Filters up to 29-bit Identifier/Channel
      • 8-byte Cyclic Data Register (FIFO)/Message Object
      • 16-bit Status and Control Register/Message Object
      • 16-bit Time-Stamping Register/Message Object
      • CAN Specification 2.0 Part A or 2.0 Part B Programmable for Each Message Object
      • Access to Message Object Control and Data Registers Via SFR
      • Programmable Reception Buffer Length up to 4 Message Objects
      • Priority Management of Reception of Hits on Several Message Objects Simultaneously (Basic CAN Feature)
      • Priority Management for Transmission
      • Message Object Overrun Interrupt
    • Supports
      • Time Triggered Communication
      • Autobaud and Listening Mode
      • Programmable Automatic Reply Mode
• 1-Mbit/s Maximum Transfer Rate at 8 MHz(1) Crystal Frequency In X2 Mode
• Readable Error Counters
• Programmable Link to On-chip Timer for Time Stamping and Network Synchronization
• Independent Baud Rate Prescaler
• Data, Remote, Error and Overload Frame Handling
• Power-saving Modes
  • Idle Mode
  • Power-down Mode
• Power Supply: 3 Volts to 5.5 Volts
• Temperature Range: Industrial (-40° to +85°C)
• Packages: SOIC28, SOIC24, PLCC28, VQFP32