Integrated Circuits (ICs)

24LCS21AT/SN

Active

IC,SERIAL EEPROM,128X8,CMOS,SOP,8PIN,PLASTIC ROHS COMPLIANT: YES

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Integrated Circuits (ICs)

Active

IC,SERIAL EEPROM,128X8,CMOS,SOP,8PIN,PLASTIC ROHS COMPLIANT: YES

Technical Specifications

Parameters and characteristics for this part

1Kb I2C Serial EEPROM for DDC1™/DDC2™ Monitor Identification

Part	Mounting Type	Supplier Device Package	Technology	Memory Organization	Memory Format	Write Cycle Time - Word, Page	Memory Size	Package / Case	Package / Case [y]	Package / Case [x]	Operating Temperature [Max]	Operating Temperature [Min]	Access Time	Memory Interface	Memory Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Clock Frequency	Package / Case	Package / Case
Microchip Technology 24LCS21AT/SN	Surface Mount	8-SOIC	EEPROM	128 x 8	EEPROM	10 ms	128 B	8-SOIC	3.9 mm	0.154 in	70 °C	0 °C	900 ns	I2C	Non-Volatile	2.5 V	5.5 V	400 kHz
Microchip Technology 24LCS21AT-I/SN	Surface Mount	8-SOIC	EEPROM	128 x 8	EEPROM	10 ms	128 B	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	900 ns	I2C	Non-Volatile	2.5 V	5.5 V	400 kHz
Microchip Technology 24LCS21A-I/SNG	Surface Mount	8-SOIC	EEPROM	128 x 8	EEPROM	10 ms	128 B	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	900 ns	I2C	Non-Volatile	2.5 V	5.5 V	400 kHz
Microchip Technology 24LCS21A/P	Through Hole	8-PDIP	EEPROM	128 x 8	EEPROM	10 ms	128 B	8-DIP			70 °C	0 °C	900 ns	I2C	Non-Volatile	2.5 V	5.5 V	400 kHz	0.3 in	7.62 mm
Microchip Technology 24LCS21A/SN	Surface Mount	8-SOIC	EEPROM	128 x 8	EEPROM	10 ms	128 B	8-SOIC	3.9 mm	0.154 in	70 °C	0 °C	900 ns	I2C	Non-Volatile	2.5 V	5.5 V	400 kHz
Microchip Technology 24LCS21A-I/SN	Surface Mount	8-SOIC	EEPROM	128 x 8	EEPROM	10 ms	128 B	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	900 ns	I2C	Non-Volatile	2.5 V	5.5 V	400 kHz

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

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	3300	$ 0.48
Newark	Each (Supplied on Full Reel)	100	$ 0.50

General part information

The Microchip Technology Inc. 24LCS21A is a

128 x 8-bit dual-mode Electrically Erasable PROM.

This device is designed for use in applications

Technical documentation and resources