AT90S2343

Features:

• Utilizes the AVR ^® Enhanced RISC Architecture
• AVR - High Performance and Low Power RISC Architecture
• 118 Powerful Instructions - Most Single Clock Cycle Execution
• 2K bytes of In-System Programmable ISP Flash
SPI Serial Interface for In-System Programming
Endurance: 1,000 Write/Erase Cycles
• 128 bytes EEPROM
Endurance: 100,000 Write/Erase Cycles
• 128 bytes Internal RAM
• 32 x 8 General Purpose Working Registers
3 AT90S/LS2323 Programmable I/O Lines
5 AT90S/LS2343 Programmable I/O Lines
• VCC: 4.0 - 6.0V AT90S2323/AT90S2343
• VCC: 2.7 - 6.0V AT90LS2323/AT90LS2343
• Power-On Reset Circuit
• Speed Grades: 0 - 10 MHz AT90S2323/AT90S2343
• Speed Grades: 0 - 4 MHz AT90LS2323/AT90LS2343
• Up to 10 MIPS Throughput at 10 MHz
• One 8-Bit Timer/Counter with Separate Prescaler
• External and Internal Interrupt Sources
• Programmable Watchdog Timer with On-Chip Oscillator
• Low Power Idle and Power Down Modes
• Programming Lock for Flash Program and EEPROM Data Security
• Selectable On-Chip RC Oscillator
• 8-Pin Device



Pinout




Description

The AT90S/LS2323 and AT90S/AT90S2343 is a low-power CMOS 8-bit microcontrollers based on the AVR ^® enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the AT90S/LS2323 and AT90S/LS2343 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption
versus processing speed.

The AT90S2343 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.