AT24CS01-SSHM-B More Semiconductors - ICs by Microchip Technology

1Kb I2C compatible 2-wire Serial EEPROM with Pre-programmed Serial Number

Status: Active
Series: AT24CS01
RoHS: Compliant
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The Microchip AT24CS01 is a 1 Kb Serial EEPROM utilizing an I2C (2-wire) serial interface. The device is organized as one block of 128 x 8 and is optimized for use in consumer and industrial applications where reliable and dependable nonvolatile memory storage is essential. The EEPROM is available in a variety of space-saving packaging options.

The AT24CS01 features a 128 bit serial number that is programmed and permanently write protected during the Microchip manufacturing process. This unique identifier is separate from the main 1Kb memory array and eliminates the time consuming step of performing and ensuring serialization of a product on a manufacturing line. The 128-bit serial number is guaranteed unique across the entire CS series of Serial EEPROM products.

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128 x 8 (1 Kbit)
400 kHz (1.7V) and 1 MHz (>2.5V) clock compatibility
Supports up to 8 devices on the bus
Self-Timed Erase and Write Cycles (5 ms max.)
Read current 0.4 mA (Typ), 1.0 mA (Max)
Write current 2 mA (Typ), 3 mA (Max)
Standby current 6 uA (Max)
Hardware Write-Protect Pin
More than 1 million erase/write cycles
Data retention > 100 years
Factory Programming Available
Available in 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, and 5-lead SOT23


Density (Organization) 1K bits
Operating Voltage Min. (V) 1.7
Oper Voltage Max (V) 5.5
Max. Clock Freq. 1 MHz
Page Size (bytes) 8
Write Protected False
Write Protect Scheme Whole Array
Endurance 1,000,000
Data Retention (Years) 0
Battery Backup False
Pins | Packaging 8 | SOIC
Temp Range -40C to +85C
Packing Media Tube (100)

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.078
Shipping Weight (kg) 0.25
Lead Count 8
Package Type SOIC
Package Width or Size .150In(3.90mm)
Soldering Composition Matte Tin

Alternative Descriptions

1MHz, Ind Temp, 8-SOIC-N | Microchip Technology
Eeprom, 1Kbit, -40 To 85Deg C | Newark Electronics
EEPROM, 1KBIT, -40 TO 85DEG C | element14
I▓C-Compatible (Two-Wire) Serial EEPROM 128-Bit Serial Number 1-Kbit (128 x 8) | Future Electronics
EEPROM Serial-I2C 1K-bit 128x8 2.5V/3.3V/5V 8-Pin SOIC Bulk | Avnet America

Frequently Asked Questions

Where can I find additional details, specifications and documents for a AT24CS01-SSHM-B?

Additional datasheets, footprints and schematics for AT24CS01-SSHM-B are listed on our Part Details page. You can also find images and similar parts to AT24CS01-SSHM-B on this page.

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What category does AT24CS01-SSHM-B fall under?

The AT24CS01-SSHM-B is listed under Semiconductors - ICs > More Semiconductors - ICs.

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Is the AT24CS01-SSHM-B RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for AT24CS01-SSHM-B have stock available?

Authorised distributors including Microchip Technology, Newark Electronics, element14, Farnell and Chip One Stop have stock available or on a lead time for AT24CS01-SSHM-B.

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