AT90S2333
AT90LS2333
AT90S4433
AT90LS4433

8-bit Microcontroller with 2K/4K bytesIn-System
Programmable Flash

Features
• High-performance and Low-power AVR® 8-bit RISC Architecture
  – 118 Powerful Instructions - Most Single Cycle Execution
  – 32 x 8 General Purpose Working Registers
  – Up to 8 MIPS Throughput at 8 MHz
• Data and Nonvolatile Program Memory
  – 2K/4K Bytes of In-System Programmable Flash
    Endurance 1,000 Write/Erase Cycles
  – 128 Bytes of SRAM
  – 128/256 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
  – Expanded 16-bit Timer/Counter with Separate Prescaler,
    Compare, Capture Modes and 8-, 9- or 10-bit PWM
  – On-chip Analog Comparator
  – Programmable Watchdog Timer with Separate On-chip Oscillator
  – Programmable UART
  – 6-channel, 10-bit ADC
  – Master/Slave SPI Serial Interface
• Special Microcontroller Features
  – Brown-Out Reset Circuit
  – Enhanced Power-on Reset Circuit
  – Low-Power Idle and Power Down Modes
  – External and Internal Interrupt Sources
• Specifications
  – Low-power, High-speed CMOS Process Technology
  – Fully Static Operation
• Power Consumption at 4 MHz, 3V, 25°C
  – Active: 3.4 mA
  – Idle Mode: 1.4 mA
  – Power Down Mode: <1 µA
• I/O and Packages
  – 20 Programmable I/O Lines
  – 28-pin PDIP and 32-pin TQFP
• Operating Voltage
  – 2.7V - 6.0V (AT90LS2333 and AT90LS4433)
  – 4.0V - 6.0V (AT90S2333 and AT90S4433)
• Speed Grades
  – 0 - 4 MHz (AT90LS2333 and AT90LS4433)
  – 0 - 8 MHz (AT90S2333 and AT90S4433)
