Retrieve AVR Microcontroller ATmel AT90S4433 8-bit Microcontroller with 2K/4K bytes In-System Programmable Flash

We can retrieve AVR Microcontroller ATMEL AT90S4433 8-bit Microcontroller with 2K/4K bytes In-System Programmable Flash, please find the IC chip features for your reference:



· 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


– 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


with 2K/4K bytes










– 0 – 4 MHz (AT90LS2333 and AT90LS4433)

– 0 – 8 MHz (AT90S2333 and AT90S4433)

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