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Microchip Technology AT25 Series

43 variants · Microchip Technology

About the Microchip Technology Microchip Technology AT25 Series series

The Microchip Technology Microchip Technology AT25 Series series groups 43 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common frequency of 20 MHz, memory format of EEPROM and memory interface of SPI. Variants differ by case, memory organization and memory size, so you can match the exact case your application requires using the selection guide below. The range mixes active and legacy part numbers, so you can source both current Microchip Technology AT25 Series variants and discontinued ones from a single page.

Select a variant by

Case
8-SOIC (0.154\", 3.90mm Width) · 8-TSSOP (0.173\", 4.40mm Width) · 8-UFDFN Exposed Pad
Memory organization
128 x 8 · 256 x 8 · 512 x 8
Memory size
1Kbit · 2Kbit · 4Kbit
Package
Tape & Reel (TR); Cut Tape (CT) · Tube

Variant comparison

ParameterAT25010B-MAHL-EAT25010B-MAHL-TAT25010B-SSHL-TAT25010B-XHL-BAT25010B-XHL-TAT25020B-MAHL-E
Case8-UFDFN Exposed Pad8-UFDFN Exposed Pad8-SOIC (0.154\", 3.90mm Width)8-TSSOP (0.173\", 4.40mm Width)8-TSSOP (0.173\", 4.40mm Width)8-UFDFN Exposed Pad
Memory organization128 x 8128 x 8128 x 8128 x 8128 x 8256 x 8
Memory size1Kbit1Kbit1Kbit1Kbit1Kbit2Kbit
PackageTape & Reel (TR); Cut Tape (CT)Tape & Reel (TR); Cut Tape (CT)Tape & Reel (TR); Cut Tape (CT)TubeTape & Reel (TR); Cut Tape (CT)Tape & Reel (TR); Cut Tape (CT)

Shared specifications

Frequency
20 MHz
Memory format
EEPROM
Memory interface
SPI
Memory type
Non-Volatile
Mounting type
Surface Mount
Operating temperature
-40°C~85°C(TA)
Technology
EEPROM
Voltage
1.8V ~ 5.5V
Write cycle time - word, page
5ms

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

Frequently asked questions

How do the Microchip Technology Microchip Technology AT25 Series variants differ?
Microchip Technology AT25 Series part numbers differ by case, memory organization, memory size and package. Use the selection guide above to pick by case.
How many Microchip Technology Microchip Technology AT25 Series part numbers are listed?
43 Microchip Technology Microchip Technology AT25 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Microchip Technology Microchip Technology AT25 Series?
Request a quote (RFQ) for any Microchip Technology AT25 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants