AT88SC1616C-PU Equivalent & Substitute Parts

Part Overview

The AT88SC1616C-PU is a Secure Memory IC manufactured by Microchip Technology, classified as a CryptoMemory® series component in 8-DIP packaging. This part is designed for embedded and smart card applications requiring secure memory functionality. The product status is listed as Obsolete, necessitating identification of functionally equivalent substitute components for ongoing design requirements and production continuity.

Substiute Parts

AT88SC1616C-PU

Microchip TechnologyIn Stock: 1921AT88SC1616C-PU Datasheet

Current PartRFQ

24AA16-E/P

Microchip TechnologyIn Stock: 1222924AA16-E/P Datasheet

MFR RecommendedRFQ

24AA16-I/P

Microchip TechnologyIn Stock: 213424AA16-I/P Datasheet

MFR RecommendedRFQ

24AA16H-I/P

Microchip TechnologyIn Stock: 93124AA16H-I/P Datasheet

MFR RecommendedRFQ

24LC16B-E/P

Microchip TechnologyIn Stock: 445524LC16B-E/P Datasheet

MFR RecommendedRFQ

24LC16B-I/P

Microchip TechnologyIn Stock: 1009824LC16B-I/P Datasheet

MFR RecommendedRFQ

24LC16BH-E/P

Microchip TechnologyIn Stock: 88824LC16BH-E/P Datasheet

MFR RecommendedRFQ

24LC16BH-I/P

Microchip TechnologyIn Stock: 277524LC16BH-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AT88SC1616C-PU are selected based on strict alignment with the following critical parameters:

Package Compatibility: All substitute parts must use 8-DIP (0.300", 7.62mm) packaging with 8-PDIP supplier device package designation to ensure mechanical and electrical pin compatibility.

Mounting Type: Through-hole mounting is required for direct replacement in existing PCB designs.

Memory Interface & Capacity: Substitute parts must support I2C interface protocol and 16Kbit memory capacity (2K x 8 organization) to maintain functional equivalence.

Electrical Specifications: Operating voltage range, clock frequency (400 kHz), access time (900 ns), and write cycle time (5ms) must be compatible with the original design requirements.

Compliance & Certifications: All substitute parts must maintain ROHS3 compliance, MSL 1 rating, REACH unaffected status, and EAR99 ECCN classification.

Manufacturer: Microchip Technology is the sole manufacturer for all substitute options, ensuring consistent quality and support.

The substitute parts listed below meet all these criteria and are classified as Active products with current manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

All substitute parts listed are manufactured by Microchip Technology and maintain ROHS3 compliance, MSL 1 rating, REACH unaffected status, and EAR99 ECCN classification consistent with the original AT88SC1616C-PU component.

Active Product Status: All substitute parts carry Active product status, ensuring ongoing manufacturing support, availability, and technical documentation access. This contrasts with the Obsolete status of the original part.

Temperature Range Considerations:

The 24AA16-E/P and 24LC16B-E/P variants support the extended temperature range of -40°C to 125°C, matching the original part's operating temperature specification. The 24AA16-I/P, 24AA16H-I/P, 24LC16B-I/P, and 24LC16BH-I/P variants operate within -40°C to 85°C, which is suitable for standard industrial and commercial applications but does not extend to the upper temperature limit of the original specification.

Voltage Supply Range:

The 24AA16 series (24AA16-E/P and 24AA16-I/P) supports 1.7V to 5.5V supply voltage, matching the original part's voltage specification. The 24LC16B series (24LC16B-E/P, 24LC16B-I/P, 24LC16BH-E/P, and 24LC16BH-I/P) operates within 2.5V to 5.5V, which is narrower than the original specification but covers standard 3.3V and 5V logic levels.

Inventory Availability:

The 24LC16B-I/P variant offers the highest inventory level at 10,000 pieces, followed by 24AA16-E/P at 12,200 pieces. These options provide superior supply chain continuity for production requirements.

Frequently Asked Questions (FAQ)

Q: Can the 24AA16 series directly replace the AT88SC1616C-PU?

A: The 24AA16-E/P and 24AA16-I/P variants are electrically and mechanically compatible with the AT88SC1616C-PU. Both support 16Kbit I2C EEPROM memory with identical clock frequency (400 kHz), access time (900 ns), and write cycle time (5ms). The 24AA16-E/P maintains the extended temperature range (-40°C to 125°C) of the original part. Pin configuration and 8-DIP packaging are identical.

Q: What is the difference between the 24AA16 and 24LC16B series?

A: The primary difference is the minimum supply voltage specification. The 24AA16 series operates from 1.7V to 5.5V, while the 24LC16B series operates from 2.5V to 5.5V. Both series provide identical memory capacity, interface protocol, and timing specifications. Selection depends on the minimum voltage requirement of the application circuit.

Q: Why are there temperature variants (E/P and I/P) within each series?

A: The E/P designation indicates extended temperature range (-40°C to 125°C), while the I/P designation indicates industrial temperature range (-40°C to 85°C). Selection depends on the thermal environment of the application. Extended temperature variants are required for automotive, aerospace, or high-temperature industrial applications.

Q: Are the H-variant parts (24AA16H-I/P and 24LC16BH-E/P, 24LC16BH-I/P) functionally different?

A: The H-variant designation indicates a different die revision or internal configuration within the same electrical specification envelope. All H-variant parts maintain identical memory capacity, interface protocol, timing, and packaging as their non-H counterparts. Selection between H and non-H variants is determined by design compatibility and availability.

Q: What is the significance of the packaging designation 8-PDIP?

A: 8-PDIP (8-Pin Plastic Dual In-line Package) is the supplier device package designation. This confirms the component uses a standard through-hole dual in-line package with 0.300-inch (7.62mm) row spacing, ensuring compatibility with existing PCB designs and socket configurations.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification, MSL 1 (Unlimited) moisture sensitivity rating, REACH unaffected status, and EAR99 ECCN classification, matching the regulatory and environmental compliance profile of the original AT88SC1616C-PU component.

Q: Which substitute part offers the best supply chain continuity?

A: The 24LC16B-I/P variant provides the highest current inventory at 10,000 pieces, followed by 24AA16-E/P at 12,200 pieces. Both options ensure immediate availability for production requirements. The 24LC16B-I/P is suitable for applications operating within the -40°C to 85°C temperature range and 2.5V to 5.5V supply voltage range.