Integrated Circuits (ICs)

AT21CS01-STUM11-T

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Microchip Technology

IC EEPROM 1KBIT I2C SOT23-3

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Integrated Circuits (ICs)

AT21CS01-STUM11-T

Active

Microchip Technology

IC EEPROM 1KBIT I2C SOT23-3

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	AT21CS01-STUM11-T

Clock Frequency	125 kbps
Memory Format	EEPROM
Memory Organization	128 x 8
Memory Size	128 B
Memory Type	Non-Volatile
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	SOT-23-3, TO-236-3, SC-59
Supplier Device Package	SOT-23-3
Technology	EEPROM
Voltage - Supply [Max]	3.6 V
Voltage - Supply [Min]	1.7 V
Write Cycle Time - Word, Page	5 ms

AT21CS01 Series

Single-Wire 1-Kbit (128 x 8) Serial EEPROM with Factory-Programmed 64-Bit Serial Number

Part	Memory Size	Memory Type	Clock Frequency	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Memory Organization	Memory Format	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Technology	Write Cycle Time - Word, Page	Memory Interface	Write Cycle Time - Word, Page [custom]	Write Cycle Time - Word, Page [custom]	Package / Case [y]	Package / Case [x]
Microchip Technology AT21CS01-STUM11-T	128 B	Non-Volatile	125 kbps	SC-59 SOT-23-3 TO-236-3	-40 °C	85 °C	SOT-23-3	128 x 8	EEPROM	Surface Mount	3.6 V	1.7 V	EEPROM	5 ms
Microchip Technology AT21CS01-MCHM10-B	128 B	Non-Volatile		2-VDFN	-40 °C	85 °C	2-VSFN (2x2.35)	128 x 8	EEPROM	Surface Mount	3.6 V	1.7 V	EEPROM		1-Wire®	150 µs	150 µs
Microchip Technology AT21CS01-STUM13-T	128 B	Non-Volatile	125 kbps	SC-59 SOT-23-3 TO-236-3	-40 °C	85 °C	SOT-23-3	128 x 8	EEPROM	Surface Mount	3.6 V	1.7 V	EEPROM	5 ms
Microchip Technology AT21CS01-SSHM10-B	128 B	Non-Volatile	125 kbps	8-SOIC	-40 °C	85 °C	8-SOIC	128 x 8	EEPROM	Surface Mount	3.6 V	1.7 V	EEPROM	5 ms				3.9 mm	0.154 in
Microchip Technology AT21CS01-STUM12-T	128 B	Non-Volatile	125 kbps	SC-59 SOT-23-3 TO-236-3	-40 °C	85 °C	SOT-23-3	128 x 8	EEPROM	Surface Mount	3.6 V	1.7 V	EEPROM	5 ms
Microchip Technology AT21CS01-MCHM10-T	128 B	Non-Volatile		2-VDFN	-40 °C	85 °C	2-VSFN (2x2.35)	128 x 8	EEPROM	Surface Mount	3.6 V	1.7 V	EEPROM		1-Wire®
Microchip Technology AT21CS01-STUM16-T	128 B	Non-Volatile	125 kbps	SC-59 SOT-23-3 TO-236-3	-40 °C	85 °C	SOT-23-3	128 x 8	EEPROM	Surface Mount	3.6 V	1.7 V	EEPROM	5 ms
Microchip Technology AT21CS01-SSHM16-T	128 B	Non-Volatile	125 kbps	8-SOIC	-40 °C	85 °C	8-SOIC	128 x 8	EEPROM	Surface Mount	3.6 V	1.7 V	EEPROM	5 ms				3.9 mm	0.154 in
Microchip Technology AT21CS01-UUM0B-T	128 B	Non-Volatile	125 kbps	4-XFBGA WLCSP	-40 °C	85 °C	4-WLCSP	128 x 8	EEPROM	Surface Mount	3.6 V	1.7 V	EEPROM	5 ms
Microchip Technology AT21CS01-TOHM10-B	128 B	Non-Volatile	125 kbps	TO-226-3 TO-92-3	-40 °C	85 °C	TO-92-3	128 x 8	EEPROM	Through Hole	3.6 V	1.7 V	EEPROM	5 ms

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

AT21CS01 Series

The Microchip AT21CS01 is a 1 Kb Serial EEPROM utilizing the

Single-Wire bus. Only two pins are needed to access the device: SI/O and GND.

The SI/O signal is a combination data and power line, providing power to the

Documents

Technical documentation and resources