AT88SC12816C-PU Equivalent & Substitute Parts

Part Overview

The AT88SC12816C-PU is a Secure Memory integrated circuit manufactured by Microchip Technology, classified within the CryptoMemory® series. This component is a Through Hole mounted 8-DIP package device designed for embedded and smart card applications. The part is currently listed as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

AT88SC12816C-PU

Microchip TechnologyIn Stock: 1071AT88SC12816C-PU Datasheet

Current PartRFQ

24AA128-I/P

Microchip TechnologyIn Stock: 154424AA128-I/P Datasheet

MFR RecommendedRFQ

24FC128-I/P

Microchip TechnologyIn Stock: 2027224FC128-I/P Datasheet

MFR RecommendedRFQ

24LC128-E/P

Microchip TechnologyIn Stock: 181324LC128-E/P Datasheet

MFR RecommendedRFQ

24LC128-I/P

Microchip TechnologyIn Stock: 281924LC128-I/P Datasheet

MFR RecommendedRFQ

AT88SC12816C-SU

Microchip TechnologyIn Stock: 1261AT88SC12816C-SU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT88SC12816C-PU is determined by the following critical parameters: package type (8-DIP Through Hole), mounting technology (Through Hole), physical dimensions (0.300", 7.62mm), and functional compatibility with embedded and smart card applications.

The substitute parts are grouped into two categories:

Category 1: CryptoMemory® Series (Same Product Line) The AT88SC12816C-SU maintains identical functional characteristics and series designation but differs in package configuration (8-SOIC Surface Mount instead of 8-DIP Through Hole). This substitute is suitable only for designs that can accommodate surface mount technology.

Category 2: EEPROM Memory Alternatives (24-Series) The 24AA128-I/P, 24FC128-I/P, 24LC128-E/P, and 24LC128-I/P are EEPROM memory devices that share the following compatible parameters: 128Kbit memory capacity, 16K x 8 memory organization, I2C interface, 8-DIP Through Hole package, identical physical dimensions (0.300", 7.62mm), RoHS3 compliance, and EAR99 ECCN classification. These parts differ from the main part in memory technology (EEPROM vs. Secure Memory) and interface protocol implementation.

Parameter Comparison

Engineering Selection Recommendations

For Through Hole 8-DIP Applications:

The 24LC128-I/P and 24LC128-E/P are the primary substitutes for the AT88SC12816C-PU when maintaining Through Hole mounting technology. Both parts are Active status products with ROHS3 compliance and EAR99 ECCN classification. The 24LC128-I/P operates across -40°C to 85°C with 2.5V to 5.5V supply range, while the 24LC128-E/P extends the operating temperature to 125°C. Selection between these two depends on thermal environment requirements.

The 24FC128-I/P offers enhanced performance with 1 MHz clock frequency and 400 ns access time compared to the 400 kHz and 900 ns specifications of the 24LC128 variants. This part is verified for DiGi-Electronics programmability and maintains identical package and compliance characteristics.

The 24AA128-I/P provides the widest supply voltage range (1.7V to 5.5V) among the EEPROM alternatives, suitable for low-power applications, though it is not verified for DiGi-Electronics programmability.

For Surface Mount Applications:

The AT88SC12816C-SU maintains the CryptoMemory® series designation and Secure Memory functionality but requires surface mount PCB design. This part is Active status with ROHS3 compliance. The MSL rating of 3 (168 Hours) requires controlled moisture exposure during storage and handling compared to the MSL 1 rating of Through Hole alternatives.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and EAR99 ECCN classification except AT88SC12816C-SU, which carries ECCN 5A992C. This distinction may affect export and supply chain considerations depending on regulatory jurisdiction.

Frequently Asked Questions (FAQ)

Q: Can the 24LC128-I/P directly replace the AT88SC12816C-PU in existing designs?

A: The 24LC128-I/P shares the 8-DIP Through Hole package, physical dimensions, and pin count with the AT88SC12816C-PU. However, functional compatibility depends on whether the original design requires Secure Memory features or standard EEPROM functionality. The 24LC128-I/P is an EEPROM device without cryptographic capabilities. PCB-level compatibility is confirmed; functional compatibility requires design review.

Q: What is the difference between 24LC128-I/P and 24LC128-E/P?

A: Both parts are identical in package, interface, and electrical specifications except for operating temperature range. The 24LC128-I/P operates from -40°C to 85°C, while the 24LC128-E/P extends to -40°C to 125°C. Selection depends on the thermal environment of the application.

Q: Why does 24FC128-I/P have faster access time than 24LC128 variants?

A: The 24FC128-I/P operates at 1 MHz clock frequency with 400 ns access time, compared to 400 kHz and 900 ns for the 24LC128 series. This represents a performance enhancement in the same product family. Both are compatible with 8-DIP Through Hole mounting and I2C interface protocols.

Q: Is AT88SC12816C-SU a suitable replacement for Through Hole PCB designs?

A: No. The AT88SC12816C-SU uses 8-SOIC Surface Mount packaging, which is incompatible with Through Hole PCB designs. This part is suitable only for designs that can accommodate surface mount technology. The MSL rating of 3 also requires different moisture control procedures compared to Through Hole alternatives.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, except AT88SC12816C-SU which has MSL 3. ECCN classifications are EAR99 for the 24-series EEPROM parts and 5A992C for AT88SC12816C-SU. All parts are REACH Unaffected.

Q: Can I use 24AA128-I/P in applications requiring extended temperature operation?

A: The 24AA128-I/P operates from -40°C to 85°C. For applications requiring operation above 85°C, the 24LC128-E/P (-40°C to 125°C) is the appropriate selection among the Through Hole 8-DIP alternatives.

Q: What is the inventory status of these substitute parts?

A: 24LC128-I/P: 2770 Pcs; 24LC128-E/P: 1711 Pcs; 24FC128-I/P: 20200 Pcs; 24AA128-I/P: 1518 Pcs; AT88SC12816C-SU: 1200 Pcs. All are listed as New Original In Stock.