Description
The AT90S2313 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the AT90S2313 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.

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 Non-volatile Program Memory
   – 2K Bytes of In-System Programmable Flash Endurance 1,000 Write/Erase Cycles
   – 128 Bytes of SRAM
   – 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
   – One 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 On-chip Oscillator
   – SPI Serial Interface for In-System Programming
   – Full Duplex UART
• • Special Microcontroller Features
   – 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: 2.8 mA
   – Idle Mode: 0.8 mA
   – Power-down Mode: <1 µA
• I/O and Packages
   – 15 Programmable I/O Lines
   – 20-pin PDIP and SOIC
• Operating Voltages
   – 2.7 - 6.0V (AT90S2313-4)
   – 4.0 - 6.0V (AT90S2313-10)
• Speed Grades
   – 0 - 4 MHz (AT90S2313-4)
   – 0 - 10 MHz (AT90S2313-10)