AT90S2323
AT90LS2323
AT90S2343
AT90LS2343

8-bit Microcontroller with 2K Bytes of In-System 
Programmable Flash

Features

• Utilizes the AVR®
  RISC Architecture
• AVR – High-performance and Low-power RISC Architecture
  –118 Powerful Instructions – Most Single Clock Cycle Execution
  –32 x 8 General-purpose Working Registers
  –Up to 10 MIPS Throughput at 10 MHz
• Data and Nonvolatile Program Memory
  –2K Bytes of In-System Programmable Flash
   Endurance: 1,000 Write/Erase Cycles
  –128 Bytes Internal RAM
  –128 Bytes of In-System Programmable EEPROM
   Endurance: 100,000 Write/Erase Cycles
  –Programming Lock for Flash Program and EEPROM Data Security
• Peripheral Features
  –One 8-bit Timer/Counter with Separate Prescaler
  –Programmable Watchdog Timer with On-chip Oscillator
  –SPI Serial Interface for In-System Programming
• Special Microcontroller Features
  –Low-power Idle and Power-down Modes
  –External and Internal Interrupt Sources
  –Power-on Reset Circuit
  –Selectable On-chip RC Oscillator
• Specifications
  –Low-power, High-speed CMOS Process Technology
  –Fully Static Operation
• Power Consumption at 4 MHz, 3V, 25°C–Active: 2.4 mA
  –Idle Mode: 0.5 mA
  –Power-down Mode: <1 µA
• I/O and Packages
  –Three Programmable I/O Lines for AT90S/LS2323
  –Five Programmable I/O Lines for AT90S/LS2343
  –8-pin PDIP and SOIC
• Operating Voltages
  –4.0 - 6.0V for AT90S2323/AT90S2343
  –2.7 - 6.0V for AT90LS2323/AT90LS2343
• Speed Grades
  –0 - 10 MHz for AT90S2323/AT90S2343-10
  –0 - 4 MHz for AT90LS2323/AT90LS2343-4
  –0 - 1 MHz for AT90LS2343-1
