AT88SC3216C-SU Equivalent & Substitute Parts

Part Overview

The AT88SC3216C-SU is a Secure Memory IC manufactured by Microchip Technology, supplied in 8-SOIC surface mount packaging. This CryptoMemory® series component is classified as Active product status and is ROHS3 compliant. The device is designed for embedded and smart card applications requiring secure memory functionality. Substitute parts are identified based on matching electrical parameters, package compatibility, and operational specifications to ensure functional equivalence in target applications.

Key Parameters

Parameter	AT88SC3216C-SU
Manufacturer	Microchip Technology
Product Type	Secure Memory
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Series	CryptoMemory®
Product Status	Active
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
REACH Status	REACH Unaffected
ECCN	5A992C
HTSUS	8542.32.0051

Substitute Part Grouping Explanation

Substitute parts for the AT88SC3216C-SU are selected based on the following critical parameters:

Package Compatibility: All substitute parts must use 8-SOIC (0.154", 3.90mm Width) or equivalent 8-SOP-J packaging to ensure mechanical and electrical compatibility with existing PCB layouts.

Memory Organization: Substitute parts maintain 32Kbit memory capacity with 4K x 8 organization to preserve functional equivalence.

Interface Protocol: All substitutes utilize I2C interface protocol for communication compatibility.

Surface Mount Technology: All candidates are surface mount devices suitable for automated assembly processes.

Compliance Standards: Substitute parts must maintain ROHS3 compliance and REACH Unaffected status to meet regulatory requirements.

Voltage Supply Range: Substitute parts operate within overlapping supply voltage ranges to ensure compatibility with existing power distribution systems.

Operating Temperature Range: Substitute parts support -40°C to 85°C or -40°C to 125°C operating temperatures, compatible with the main part's -40°C to 85°C specification.

Parameter Comparison

Part Number	Manufacturer	Memory Type	Memory Size	Memory Interface	Clock Frequency	Access Time	Voltage Supply	Operating Temp	Package	MSL	RoHS Status	Inventory
AT88SC3216C-SU	Microchip Technology	Secure Memory	32Kbit	Proprietary	N/A	N/A	N/A	N/A	8-SOIC	3	ROHS3	3400 Pcs
24AA32A-I/SN	Microchip Technology	EEPROM	32Kbit	I2C	400 kHz	900 ns	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	1	ROHS3	66200 Pcs
24LC32A-E/SN	Microchip Technology	EEPROM	32Kbit	I2C	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	3	ROHS3	6377 Pcs
24LC32A-I/SN	Microchip Technology	EEPROM	32Kbit	I2C	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	1	ROHS3	7280 Pcs
24LC32AF-E/SN	Microchip Technology	EEPROM	32Kbit	I2C	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	1	ROHS3	2320 Pcs
24LC32AF-I/SN	Microchip Technology	EEPROM	32Kbit	I2C	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	1	ROHS3	3100 Pcs
AT24CS32-SSHM-T	Microchip Technology	EEPROM	32Kbit	I2C	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	3	ROHS3	3400 Pcs
BR24G32FJ-3AGTE2	Rohm Semiconductor	EEPROM	32Kbit	I2C	1 MHz	N/A	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOP-J	1	ROHS3	60439 Pcs
BR24G32FJ-3GTE2	Rohm Semiconductor	EEPROM	32Kbit	I2C	400 kHz	N/A	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOP-J	1	ROHS3	105400 Pcs
BR24L32FJ-WE2	Rohm Semiconductor	EEPROM	32Kbit	I2C	400 kHz	N/A	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOP-J	1	ROHS3	7159 Pcs
BR24T32FJ-WE2	Rohm Semiconductor	EEPROM	32Kbit	I2C	400 kHz	N/A	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOP-J	1	ROHS3	1800 Pcs

Engineering Selection Recommendations

Microchip Technology 24-Series EEPROM Substitutes (24AA32A-I/SN, 24LC32A-E/SN, 24LC32A-I/SN, 24LC32AF-E/SN, 24LC32AF-I/SN):

These parts maintain Microchip Technology manufacturer consistency with the AT88SC3216C-SU. All candidates are ROHS3 compliant and REACH Unaffected. The 24AA32A-I/SN offers the widest voltage supply range (1.8V ~ 5.5V) and lowest MSL rating (1). The 24LC32A and 24LC32AF variants provide extended operating temperature to 125°C where specified. All maintain 32Kbit capacity with I2C interface and 400 kHz clock frequency.

Microchip Technology AT24CS32-SSHM-T:

This substitute provides higher clock frequency (1 MHz) and faster access time (550 ns) compared to standard 24-series parts. MSL rating of 3 matches the main part specification. Voltage supply range (1.7V ~ 5.5V) and operating temperature (-40°C ~ 85°C) align with AT88SC3216C-SU requirements.

Rohm Semiconductor BR24-Series Substitutes (BR24G32FJ-3AGTE2, BR24G32FJ-3GTE2, BR24L32FJ-WE2, BR24T32FJ-WE2):

These parts provide alternative manufacturer sourcing with ROHS3 compliance and REACH Unaffected status. All use 8-SOP-J packaging, mechanically compatible with 8-SOIC footprints. MSL rating of 1 (Unlimited) provides superior moisture resistance. BR24G32FJ-3GTE2 offers highest inventory availability (105400 Pcs) with 400 kHz I2C operation. BR24L32FJ-WE2 is verified for DiGi-Electronics programmability.

Frequently Asked Questions (FAQ)

Q: Can the AT88SC3216C-SU be directly replaced with any of the listed EEPROM substitutes?

A: Substitution depends on application requirements. The AT88SC3216C-SU is a Secure Memory device, while listed substitutes are standard EEPROM components. Both maintain 32Kbit capacity and 8-SOIC packaging. Functional compatibility requires that the application does not depend on security-specific features of the CryptoMemory® series.

Q: What is the difference between 8-SOIC and 8-SOP-J packaging?

A: Both packages are mechanically and electrically compatible for PCB mounting. 8-SOIC (0.154", 3.90mm Width) and 8-SOP-J are equivalent form factors suitable for automated assembly. Pin configurations and electrical characteristics remain consistent across these package designations.

Q: Which substitute offers the best availability?

A: BR24G32FJ-3GTE2 (Rohm Semiconductor) provides the highest inventory level at 105400 Pcs. This part operates at 400 kHz I2C frequency with 1.6V ~ 5.5V supply voltage and -40°C ~ 85°C operating temperature range.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the regulatory requirements of the AT88SC3216C-SU.

Q: What is the significance of MSL (Moisture Sensitivity Level) ratings?

A: MSL ratings indicate moisture exposure limits during storage and handling. MSL 1 (Unlimited) provides maximum flexibility with no time restrictions. MSL 3 (168 Hours) requires controlled storage conditions. The AT88SC3216C-SU specifies MSL 3; substitutes with MSL 1 offer superior moisture tolerance.

Q: Which substitute provides the fastest access time?

A: AT24CS32-SSHM-T offers 550 ns access time with 1 MHz clock frequency, compared to 900 ns access time at 400 kHz for standard 24-series parts. This provides improved performance for time-sensitive applications.

Q: Can I use substitutes with extended operating temperature ranges?

A: Yes. Substitutes rated to -40°C ~ 125°C (24LC32A-E/SN, 24LC32AF-E/SN) are compatible with applications requiring the AT88SC3216C-SU's -40°C ~ 85°C specification. Extended temperature rating provides additional operational margin.

Q: What voltage supply range should I verify for my application?

A: Verify your system's supply voltage against each substitute's specification. The AT88SC3216C-SU does not specify voltage range. Substitutes range from 1.6V ~ 5.5V (BR24G32FJ-3GTE2, BR24T32FJ-WE2) to 2.5V ~ 5.5V (24LC32A series). Select parts matching your system's voltage distribution.

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