描述 Description

The AT90S2333/4433 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the AT90S2333/4433 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

特性 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)