PCF8582C-2T/03,112 Equivalent & Substitute Parts

Part Overview

The PCF8582C-2T/03,112 is a 2Kbit EEPROM memory IC with I2C interface operating at 100 kHz, manufactured by NXP USA Inc. in 8-SOIC surface mount packaging. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 256 x 8 memory organization and 2.5V to 6.0V supply voltage range define its operational envelope. Substitute parts must maintain functional compatibility while meeting current product availability and compliance standards.

Key Parameters

Parameter	PCF8582C-2T/03,112
Memory Type	Non-Volatile EEPROM
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	100 kHz
Voltage Supply Range	2.5V ~ 6.0V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the PCF8582C-2T/03,112 are selected based on the following critical parameters that determine functional compatibility:

Core Compatibility Criteria:

Memory Size: 2Kbit (256 x 8 organization)
Memory Interface: I2C protocol
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Memory Format: EEPROM, Non-Volatile

Operational Parameter Ranges:

Clock Frequency: Substitute parts operate at 400 kHz, which is backward compatible with 100 kHz I2C bus speeds
Voltage Supply: Substitute parts support 2.5V ~ 5.5V or 4.5V ~ 5.5V ranges, which overlap with the original 2.5V ~ 6.0V specification
Operating Temperature: Substitute parts support -40°C ~ 85°C or 0°C ~ 70°C ranges

All listed substitute parts maintain identical memory capacity, interface protocol, and physical packaging, ensuring direct functional replacement in circuit designs. Differences in clock frequency, access time, and write cycle time do not prevent substitution, as these represent performance enhancements or variations within the I2C specification.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Memory Interface	Clock Frequency	Voltage Supply	Operating Temperature	Package	Product Status
PCF8582C-2T/03,112	NXP USA Inc.	2Kbit	I2C	100 kHz	2.5V ~ 6.0V	-40°C ~ 85°C	8-SOIC	Obsolete
24AA02T/SN	Microchip Technology	2Kbit	I2C	400 kHz	1.7V ~ 5.5V	0°C ~ 70°C	8-SOIC	Active
24C02C-I/SN	Microchip Technology	2Kbit	I2C	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
24C02C/SN	Microchip Technology	2Kbit	I2C	400 kHz	4.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Active
24C02CT-I/SN	Microchip Technology	2Kbit	I2C	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
24C02CT/SN	Microchip Technology	2Kbit	I2C	400 kHz	4.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Active
24LC024-I/SN	Microchip Technology	2Kbit	I2C	400 kHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
24LC024/SN	Microchip Technology	2Kbit	I2C	400 kHz	2.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Active
24LC024T-I/SN	Microchip Technology	2Kbit	I2C	400 kHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
24LC024T/SN	Microchip Technology	2Kbit	I2C	400 kHz	2.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Active
24LC02B-I/SN	Microchip Technology	2Kbit	I2C	400 kHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active

Engineering Selection Recommendations

All substitute parts listed are manufactured by Microchip Technology and maintain active product status, ensuring long-term availability and supply chain stability. Each substitute part is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

For applications requiring the full -40°C ~ 85°C operating temperature range of the original PCF8582C-2T/03,112, select from: 24C02C-I/SN, 24C02CT-I/SN, 24LC024-I/SN, or 24LC02B-I/SN.

For applications with 2.5V minimum supply voltage requirement, select from: 24LC024-I/SN, 24LC024/SN, 24LC024T-I/SN, 24LC024T/SN, or 24LC02B-I/SN.

For applications with 4.5V minimum supply voltage tolerance, select from: 24C02C-I/SN, 24C02C/SN, 24C02CT-I/SN, or 24C02CT/SN.

All substitute parts support I2C clock frequencies up to 400 kHz, which is backward compatible with the original 100 kHz specification and provides performance headroom for modern I2C bus implementations.

Frequently Asked Questions (FAQ)

Q: Can the PCF8582C-2T/03,112 be directly replaced with any of the listed substitute parts?

A: Yes, all listed substitute parts are functionally compatible. They maintain identical 2Kbit memory capacity, 256 x 8 organization, I2C interface protocol, and 8-SOIC surface mount packaging. The primary selection criterion is matching the operating temperature and supply voltage requirements of your specific application.

Q: What is the difference between 24LC024 and 24C02C series parts?

A: Both series are 2Kbit I2C EEPROM devices in 8-SOIC packaging. The 24LC024 series supports 2.5V ~ 5.5V supply voltage, while the 24C02C series supports 4.5V ~ 5.5V supply voltage. Select 24LC024 variants for applications requiring lower supply voltage operation.

Q: Are there packaging differences between the substitute parts?

A: Yes. Substitute parts are available in different packaging formats: Tube, Tape & Reel (TR), and Cut Tape (CT) & Digi-Reel. The physical component (8-SOIC) is identical; packaging format affects handling and quantity per reel. Select based on your procurement and assembly requirements.

Q: Does the higher clock frequency of substitute parts (400 kHz vs. 100 kHz) affect compatibility?

A: No. I2C is a backward-compatible protocol. Devices rated for 400 kHz operation function correctly on 100 kHz I2C buses. The higher frequency rating indicates enhanced performance capability, not a requirement for operation at that speed.

Q: Which substitute part has the closest operating temperature range to the original?

A: The 24C02C-I/SN, 24C02CT-I/SN, 24LC024-I/SN, and 24LC02B-I/SN all support -40°C ~ 85°C, matching the original PCF8582C-2T/03,112 specification exactly.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.

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