AT88SC0808CA-SH-T Equivalent & Substitute Parts

Part Overview

The AT88SC0808CA-SH-T is a Secure Memory IC manufactured by Microchip Technology, classified as CryptoMemory® technology in an 8-SOIC surface mount package. This component is designed for embedded and smart card applications requiring secure memory functionality. The part is currently in Active product status with 5,150 units in stock.

Substitute parts are identified based on functional equivalence in memory capacity, interface protocol, package form factor, and electrical operating parameters. While the AT88SC0808CA-SH-T provides secure memory features, equivalent EEPROM alternatives offer comparable 8Kbit storage with I2C interface compatibility in the same 8-SOIC package footprint.

Key Parameters

Parameter	AT88SC0808CA-SH-T
Manufacturer	Microchip Technology
Memory Type	Secure Memory
Memory Size	8Kbit
Memory Organization	1K x 8
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the AT88SC0808CA-SH-T are selected based on the following criteria:

Primary Substitution Parameters:

Memory Size: 8Kbit (1K x 8 organization)
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Memory Format: EEPROM (non-volatile memory)
Interface: I2C protocol
RoHS Compliance: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Secondary Compatibility Factors:

Operating Temperature Range: -40°C to 85°C or higher
Supply Voltage Range: Minimum 1.6V to 1.8V; Maximum 5.5V
Write Cycle Time: 4ms to 5ms
Clock Frequency: 400 kHz to 1 MHz

All identified substitute parts meet the core electrical and mechanical requirements for direct functional replacement in 8-SOIC package applications requiring 8Kbit I2C EEPROM memory.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Memory Format	Interface	Clock Frequency	Package	Voltage Supply	Operating Temp	RoHS Status	Product Status
AT88SC0808CA-SH-T	Microchip Technology	8Kbit	Secure Memory	Proprietary	N/A	8-SOIC	N/A	N/A	ROHS3	Active
AT24C08D-SSHM-T	Microchip Technology	8Kbit	EEPROM	I2C	1 MHz	8-SOIC	1.7V ~ 3.6V	-40°C ~ 85°C	ROHS3	Active
AT24CS08-SSHM-T	Microchip Technology	8Kbit	EEPROM	I2C	1 MHz	8-SOIC	1.7V ~ 5.5V	-40°C ~ 85°C	ROHS3	Active
BR24G08FJ-3GTE2	Rohm Semiconductor	8Kbit	EEPROM	I2C	400 kHz	8-SOIC	1.6V ~ 5.5V	-40°C ~ 85°C	ROHS3	Active
BR24L08FJ-WE2	Rohm Semiconductor	8Kbit	EEPROM	I2C	400 kHz	8-SOIC	1.8V ~ 5.5V	-40°C ~ 85°C	ROHS3	Active
BR24T08FJ-WE2	Rohm Semiconductor	8Kbit	EEPROM	I2C	400 kHz	8-SOIC	1.6V ~ 5.5V	-40°C ~ 85°C	ROHS3	Active
CAT24C08WI-GT3	onsemi	8Kbit	EEPROM	I2C	400 kHz	8-SOIC	1.7V ~ 5.5V	-40°C ~ 85°C	ROHS3	Active
CAV24C08WE-GT3	onsemi	8Kbit	EEPROM	I2C	400 kHz	8-SOIC	2.5V ~ 5.5V	-40°C ~ 125°C	ROHS3	Active
M24C08-DRMN3TP/K	STMicroelectronics	8Kbit	EEPROM	I2C	1 MHz	8-SOIC	1.7V ~ 5.5V	-40°C ~ 125°C	ROHS3	Active
M24C08-DRMN8TP/K	STMicroelectronics	8Kbit	EEPROM	I2C	1 MHz	8-SOIC	1.8V ~ 5.5V	-40°C ~ 105°C	ROHS3	Active
M24C08-FMN6TP	STMicroelectronics	8Kbit	EEPROM	I2C	400 kHz	8-SOIC	1.7V ~ 5.5V	-40°C ~ 85°C	ROHS3	Active

Engineering Selection Recommendations

Microchip Technology Substitutes:

AT24C08D-SSHM-T and AT24CS08-SSHM-T are direct Microchip alternatives offering 8Kbit I2C EEPROM in 8-SOIC packaging. Both parts maintain ROHS3 compliance and MSL 1 rating. AT24CS08-SSHM-T provides extended voltage range (1.7V ~ 5.5V) compared to AT24C08D-SSHM-T (1.7V ~ 3.6V), making it suitable for broader supply voltage applications. Both operate at 1 MHz clock frequency with 5ms write cycle time.

STMicroelectronics Substitutes:

M24C08-DRMN3TP/K, M24C08-DRMN8TP/K, and M24C08-FMN6TP are AEC-Q100 qualified automotive-grade options. M24C08-DRMN3TP/K and M24C08-DRMN8TP/K operate at 1 MHz with extended temperature ranges (-40°C to 125°C and -40°C to 105°C respectively). M24C08-FMN6TP operates at 400 kHz with standard -40°C to 85°C temperature range. All three maintain 1.7V minimum supply voltage and ROHS3 compliance.

Rohm Semiconductor Substitutes:

BR24G08FJ-3GTE2, BR24L08FJ-WE2, and BR24T08FJ-WE2 operate at 400 kHz clock frequency with 5ms write cycle time. BR24L08FJ-WE2 is verified for DiGi-Electronics programmability. BR24G08FJ-3GTE2 and BR24T08FJ-WE2 support 1.6V minimum supply voltage, while BR24L08FJ-WE2 requires 1.8V minimum. All three are ROHS3 compliant with MSL 1 rating.

onsemi Substitutes:

CAT24C08WI-GT3 operates at 400 kHz with verified DiGi-Electronics programmability, supporting 1.7V ~ 5.5V supply range and -40°C to 85°C temperature range. CAV24C08WE-GT3 is AEC-Q100 qualified automotive-grade with extended temperature range (-40°C to 125°C) and higher minimum supply voltage (2.5V), suitable for automotive applications requiring enhanced temperature performance.

All substitute parts are Active status with confirmed inventory availability and maintain ROHS3 compliance and MSL 1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can AT24C08D-SSHM-T directly replace AT88SC0808CA-SH-T?

A: Both parts share 8Kbit capacity, 8-SOIC package, and ROHS3 compliance. However, AT88SC0808CA-SH-T is a Secure Memory device with proprietary interface, while AT24C08D-SSHM-T is a standard I2C EEPROM. Functional replacement depends on application requirements for security features versus standard memory access.

Q: What is the primary difference between 400 kHz and 1 MHz clock frequency options?

A: Clock frequency determines I2C bus speed and data transfer rate. 1 MHz variants (AT24C08D-SSHM-T, M24C08-DRMN3TP/K, M24C08-DRMN8TP/K) support faster I2C communication. 400 kHz variants (BR24G08FJ-3GTE2, CAT24C08WI-GT3, M24C08-FMN6TP) operate at standard I2C speed. Selection depends on system I2C bus configuration and timing requirements.

Q: Are all substitute parts compatible with the same PCB footprint?

A: All listed substitutes use 8-SOIC (0.154", 3.90mm Width) package with identical pin configuration and footprint. Direct PCB replacement is supported without layout modifications.

Q: Which substitute offers the widest operating temperature range?

A: CAV24C08WE-GT3 and M24C08-DRMN3TP/K both support -40°C to 125°C operating temperature range, providing the widest temperature specification among available substitutes.

Q: What is the significance of AEC-Q100 qualification?

A: AEC-Q100 qualification indicates automotive-grade reliability testing and suitability for automotive applications. M24C08-DRMN3TP/K, M24C08-DRMN8TP/K, and CAV24C08WE-GT3 carry this qualification for automotive-grade applications.

Q: How do supply voltage ranges affect part selection?

A: Supply voltage range determines compatibility with system power supplies. Parts supporting 1.6V ~ 5.5V (BR24G08FJ-3GTE2, BR24T08FJ-WE2) offer maximum flexibility. Parts with 2.5V minimum (CAV24C08WE-GT3) are restricted to higher voltage systems. AT24C08D-SSHM-T with 1.7V ~ 3.6V range is limited to lower voltage applications.

Q: What does DiGi-Electronics Programmability verification indicate?

A: DiGi-Electronics Programmability verification confirms the part has been tested and validated for programming compatibility with DiGi-Electronics equipment and processes. BR24L08FJ-WE2, CAT24C08WI-GT3, and M24C08-FMN6TP carry this verification status.

Q: Are all parts REACH compliant?

A: All listed substitute parts maintain REACH Unaffected status, indicating compliance with REACH regulations. The main part AT88SC0808CA-SH-T also carries REACH Unaffected status.

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