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Atmel AT25 Series

23 variants · Atmel

About the Atmel AT25 Series

The Atmel AT25 Series series groups 23 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common memory format of EEPROM, memory interface of SPI and memory type of Non-Volatile. Variants differ by case, frequency and memory organization, so you can match the exact case your application requires using the selection guide below.

Select a variant by

Case
8-SOIC (0.154\", 3.90mm Width) · 8-TSSOP (0.173\", 4.40mm Width) · 8-UFDFN Exposed Pad · Die
Frequency
3 MHz · 5 MHz · 20 MHz
Memory organization
2K x 8 · 4K x 8 · 32K x 8 · 64K x 8 · 128 x 8 · 256 x 8 · 512 x 8
Memory size
1Kbit · 2Kbit · 4Kbit · 16Kbit · 32Kbit · 256Kbit · 512Kbit
Operating temperature
-55°C~125°C(TA) · -40°C ~ 125°C (TA) · -40°C~85°C(TA) · -40°C~125°C(TA)
Voltage
1.8V ~ 5.5V · 2.7V ~ 5.5V · 4.5V ~ 5.5V

Shared specifications

Memory format
EEPROM
Memory interface
SPI
Memory type
Non-Volatile
Mounting
Surface Mount
Package
Bulk
Technology
EEPROM
Write cycle time - word, page
5ms

Variant comparison

ParameterAT25010AN-10SQ-2.7AT25020N-10SA-5.0CAT25160AN-SQ27T6AT25256AN-SQ27ALAT25320A-10TQ-2.7AT25320AN-SQ27T7
Case8-SOIC (0.154\", 3.90mm Width)8-SOIC (0.154\", 3.90mm Width)8-SOIC (0.154\", 3.90mm Width)8-SOIC (0.154\", 3.90mm Width)8-TSSOP (0.173\", 4.40mm Width)8-SOIC (0.154\", 3.90mm Width)
Frequency20 MHz3 MHz5 MHz5 MHz5 MHz5 MHz
Memory organization128 x 8256 x 82K x 832K x 84K x 84K x 8
Memory size1Kbit2Kbit16Kbit256Kbit32Kbit32Kbit
Operating temperature-40°C~125°C(TA)-55°C~125°C(TA)-40°C~125°C(TA)-40°C~125°C(TA)-40°C~125°C(TA)-40°C~125°C(TA)
Voltage2.7V ~ 5.5V4.5V ~ 5.5V2.7V ~ 5.5V4.5V ~ 5.5V2.7V ~ 5.5V2.7V ~ 5.5V

Request a quote on any Atmel AT25 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

All variants