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Atmel, now part of Microchip Technology, is a leading manufacturer of AVR and ARM-based microcontrollers, memory devices, and touch controllers powering Arduino boards and countless embedded applications.
Parts that are not part of a series
Company background and product focus
Atmel, acquired by Microchip Technology in 2016 for $3.56 billion, revolutionized the microcontroller industry with the AVR family of 8-bit RISC microcontrollers developed since 1996. AVR was one of the first MCU families to use on-chip flash memory for program storage, enabling easier development and in-system programming that made it a favorite among hobbyists and professionals alike.
The Atmel product portfolio encompasses 8-bit AVR microcontrollers, 32-bit AVR and ARM-based processors with Cortex-M and Cortex-A cores, automotive-grade MCUs, radio-frequency devices including Wi-Fi, EEPROM and flash memory, security chips, and touch sensors and controllers. AVR microcontrollers gained widespread popularity through their inclusion in Arduino development boards, making them essential components in the maker movement.
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Product families from Atmel
| Series | Category | Parts | Status | Description |
|---|---|---|---|---|
Parts from Atmel that are not part of a series
| Part Information | Pricing (lowest) | Memory Format | Technology | Package / Case | Memory Type | Operating Temperature (Min) | Operating Temperature (Max) | Memory Size | Memory Interface (Type) | Voltage - Supply (Maximum) | Voltage - Supply (Minimum) | Package Name | Mounting Type | Memory Depth | Memory Width | Write Cycle Time - Word | Write Cycle Time - Page | Access Time | Programmable Type | Package Width | Package Length | Voltage - Supply (Range 2 Minimum) | Voltage - Supply (Range 1 Minimum) | Voltage - Supply (Range 1 Maximum) | Voltage - Supply (Range 2 Maximum) | Clock Frequency |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Atmel IC EEPROM 256KBIT PAR 28FLATPK | Sign in to see pricing | EEPROM | EEPROM | 28-CFlatpack | Non-Volatile | -55 °C | 125 °C | 32 kB | Parallel | 5.5 V | 4.5 V | 28-FlatPack, Ceramic Bottom-Brazed | Surface Mount | 32 K | 8 bit | 10 ms | 10 ms | 250 ns | — | — | — | — | — | — | — | — |
 Atmel AT17F040 - CONFIGURATION MEMORY, | Sign in to see pricing | — | — | 8-TDFN | — | -40 °C | 85 °C | 4 Mbit | — | 3.63 V | 2.97 V | 8-LAP | Surface Mount | — | — | — | — | — | FLASH | 6 mm | 6 mm | — | — | — | — | — |
 Atmel AT17LV25 - CONFIGURATION MEMORY, | Sign in to see pricing | — | — | — | — | -40 °C | 85 °C | 32 kB | — | — | — | 20-SOIC | Surface Mount | — | — | — | — | — | Serial EEPROM | 7.5 mm | 0.295 in | 4.5 V | 3 V | 3.6 V | 5.5 V | — |
 Atmel IC EEPROM 2KBIT I2C 1MHZ 8TSSOP | Sign in to see pricing | EEPROM | EEPROM | — | Non-Volatile | -40 °C | 85 °C | 2 Kbit | I2C | 5.5 V | 1.7 V | 8-TSSOP | Surface Mount | 256 | 8 bit | 5 ms | 5 ms | 550 ns | — | 4.4 mm | 0.173 in | — | — | — | — | 1 MHz |
 Atmel AT25010 - EEPROM, 128X8, SERIAL | Sign in to see pricing | EEPROM | EEPROM | 8-UFDFN Exposed Pad | Non-Volatile | -40 °C | 85 °C | 1 Kbit | SPI | 5.5 V | 1.8 V | 8-UDFN | Surface Mount | 128 | 8 bit | 5 ms | 5 ms | — | — | 3 mm | 2 mm | — | — | — | — | 20 MHz |
Atmel IC EEPROM 8KBIT SPI 5MHZ 8SOIC | Sign in to see pricing | EEPROM | EEPROM | — | Non-Volatile | -40 °C | 125 °C | 1 KB | SPI | 5.5 V | 2.7 V | 8-SOIC | Surface Mount | 1 K | 8 bit | 5 ms | 5 ms | 40 ns | — | 3.9 mm | 0.154 in | — | — | — | — | 5 MHz |
Atmel IC EEPROM 128KBIT SPI 3MHZ 8SOIC | Sign in to see pricing | EEPROM | EEPROM | — | Non-Volatile | -40 °C | 125 °C | 16 KB | SPI | 5.5 V | 4.5 V | 8-SOIC | Surface Mount | 16 K | 8 bit | 5 ms | 5 ms | — | — | 3.9 mm | 0.154 in | — | — | — | — | 3 MHz |
Atmel IC EEPROM 128KBIT SPI 3MHZ 8SOIC | Sign in to see pricing | EEPROM | EEPROM | — | Non-Volatile | -40 °C | 125 °C | 16 KB | SPI | 5.5 V | 4.5 V | 8-SOIC | Surface Mount | 16 K | 8 bit | 5 ms | 5 ms | — | — | 3.9 mm | 0.154 in | — | — | — | — | 3 MHz |
Atmel IC EEPROM 16KBIT SPI 5MHZ 8SOIC | Sign in to see pricing | EEPROM | EEPROM | — | Non-Volatile | -40 °C | 125 °C | 2 KB | SPI | 5.5 V | 2.7 V | 8-SOIC | Surface Mount | 2 K | 8 bit | 5 ms | 5 ms | 40 ns | — | 3.9 mm | 0.154 in | — | — | — | — | 5 MHz |
Atmel MCS251 MICROCONTROLLER,16 BIT, S | Sign in to see pricing | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |