Atmel

AT90S2333 - 8 bit AVR Microcontroller with 2k Bytes In-System Programmable Flash

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Features Utilizes the AVR RISC Architecture AVR - High-performance and Low-power RISC Architecture - 118 Instructions - Most Single Clock Cycle Execution - 32 x 8 General-purpose Working Registers + Peripheral Control Registers - Up to 8 MIPS Throughput at 8MHz Data and Nonvolatile Program Memory - 2k Bytes of In-System Programmable Flash - 128 Bytes Internal SRAM - 256 Bytes of In-System Programmable EEPROM - Programmable Lock for Flash Program and EEPROM Data Security Peripheral Features - One 8-bit Timer/Counter with Separate Prescalar, Compare - Expanded 16-bit Timer/Counter System with Separate Prescalar, Compare and 8,9, or 10-bit PWM - Programmable UART - Master/Slave SPI Serial Interface - Programmable Watchdog Timer with Separate On-Chip Oscillator - On-chip Analog Comparator - 6-channel, 10-bit ADC Special Microcontroller Features - Brown-out Reset Circuit - Enhanced Power-on Reset Circuit - Low-power Idle, Power-save and Power-down Modes Specifications - Low-power, High-speed CMOS Process Technology - Full Static Operation Power Consumption at 4MHz, 3V 25o C - Active: 3.4mA - Idle Mode: 1.4mA - Power-down Mode: <1µA I/O and Packages - 20 Programmable I/O Lines - 28-pin DIP

Pin Description Pin Number Description 1 RESET - Reset (Active Low) 2 - 6 PD0 - PD4 - Port D 7 Vcc - Positive Power Supply 8 GND - Ground 9 XTAL1 - Crystal 10 XTAL2 - Crystal 11 - 13 PD5 - PD7 - Port D 14 - 19 PB0 - PB5 - Port B 20 AVCC - Analog Positive Power Supply 21 AREF - Analog Reference 22 AGND - Analog Ground 23 - 28 PC0 - PC5 - Port C

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Technical Data Data Sheet Application Notes Atmel - AVR Application Notes