Atmel
24C02
Serial EEPROM stores 2048 bits organized as 256 words of 8 bits. The memory uses a two-wire serial interface with bidirectional SDA data and SCL clock pins. Compatible versions operate from 1.8 V to 5.5 V or 2.7 V to 5.5 V and support up to 100 kHz or 400 kHz clock rates. The device provides an 8-byte page write mode, a 5 ms maximum self-timed write cycle, hardware write protection, 1 million write-cycle endurance, and 100-year data retention.
24C64
64-Kbit serial EEPROM provides nonvolatile memory organized as 8,192 x 8 bits. The device uses an I2C-compatible two-wire serial interface and supports bidirectional data transfer. Page write operation supports up to 32 bytes with a self-timed write cycle. The memory is specified for high endurance and long data retention across low-voltage and standard-voltage operation variants.
ATMEGA328P-20PU
8-bit RISC microcontroller featuring 20MHz clock speed and FLASH ROM programmability. This CMOS component offers 16KB ROM and 2KB RAM, with 23 I/O lines and integrated PWM and ADC capabilities. Packaged in a 28-terminal, 7.62mm wide PDIP, it operates within an industrial temperature range of -40°C to 85°C and a supply voltage of 4.5V to 5.5V.
ATtiny85-20PU
8-bit RISC microcontroller featuring an AVR RISC CPU operating at a maximum clock frequency of 20MHz. This CMOS device offers 4096 words of FLASH program memory and 512 bytes of RAM. It includes 6 I/O lines, PWM channels, and an ADC, with a supply voltage range of 4.5V to 5.5V. Packaged in an 8-terminal PDIP with a width of 7.62mm and length of 9.271mm, it is rated for industrial temperature operation from -40°C to 85°C.