FT24C64A-ESR-T EEPROM 64Kbit I2C Equivalent & Substitute Parts

Part Overview

The FT24C64A-ESR-T is a 64Kbit EEPROM memory IC with I2C interface manufactured by Fremont Micro Devices Ltd. This non-volatile memory device operates at 800 kHz clock frequency with 1.2 µs access time and supports a supply voltage range of 1.8V to 5.5V. The device is currently active in production and available in 8-SOP surface mount packaging. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, package type, and electrical operating parameters to ensure functional compatibility in system designs.

Substiute Parts

FT24C64A-ESR-T

Fremont Micro Devices LtdIn Stock: 7320FT24C64A-ESR-T Datasheet

Current PartRFQ

M24C64-DRMN8TP/K

STMicroelectronicsIn Stock: 6618M24C64-DRMN8TP/K Datasheet

UpgradeRFQ

24AA64T/SN

Microchip TechnologyIn Stock: 217124AA64T/SN Datasheet

SimilarRFQ

24LC64F-I/SN

Microchip TechnologyIn Stock: 338624LC64F-I/SN Datasheet

SimilarRFQ

AT24CS64-SSHM-B

Microchip TechnologyIn Stock: 33429AT24CS64-SSHM-B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FT24C64A-ESR-T are qualified based on the following critical parameters:

• Memory capacity: 64Kbit (8K x 8 organization)
• Interface protocol: I2C
• Package type: 8-SOIC with 0.154" width (3.90mm)
• Supply voltage compatibility: Minimum 1.8V support
• Surface mount technology
• Non-volatile EEPROM technology

Substitute parts may vary in clock frequency (400 kHz to 1 MHz), access time (450 ns to 1.2 µs), write cycle time (4ms to 5ms), and operating temperature ranges, provided these variations do not exceed the electrical and thermal requirements of the target application. All substitute parts maintain identical memory organization, I2C interface, and physical package dimensions.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain ROHS3 compliance and are active in production status. The M24C64-DRMN8TP/K from STMicroelectronics offers automotive-grade qualification (AEC-Q100) with extended operating temperature range (-40°C to 105°C) and faster clock frequency (1 MHz) with reduced access time (450 ns), suitable for applications requiring enhanced thermal performance. The 24AA64T/SN and 24LC64F-I/SN from Microchip Technology provide standard industrial-grade alternatives with verified programmability status. The AT24CS64-SSHM-B offers 1 MHz operation with intermediate access time (550 ns) and higher inventory availability. Selection should be based on specific application requirements for operating temperature range, clock frequency, and access time performance.

Frequently Asked Questions (FAQ)

Q: Can the M24C64-DRMN8TP/K replace the FT24C64A-ESR-T in all applications?

A: The M24C64-DRMN8TP/K is functionally compatible as a direct substitute. It maintains identical memory capacity (64Kbit), organization (8K x 8), I2C interface, and 8-SOIC package dimensions. The substitute offers faster clock frequency (1 MHz vs 800 kHz) and reduced access time (450 ns vs 1.2 µs), which are performance improvements. The extended operating temperature range (-40°C to 105°C) provides broader thermal coverage. Compatibility depends on application-specific requirements for these performance parameters.

Q: What are the key differences between the 24AA64T/SN and 24LC64F-I/SN?

A: Both devices share identical memory specifications (64Kbit, 8K x 8, I2C interface, 8-SOIC package) and operate at 400 kHz clock frequency with 900 ns access time. The primary difference is the supply voltage range: 24AA64T/SN supports 1.7V to 5.5V, while 24LC64F-I/SN supports 2.5V to 5.5V. The 24AA64T/SN provides broader low-voltage compatibility. Operating temperature ranges differ: 24AA64T/SN operates 0°C to 70°C, while 24LC64F-I/SN operates -40°C to 85°C, making the latter suitable for extended temperature applications.

Q: Are all substitute parts available in the same packaging options as the FT24C64A-ESR-T?

A: All substitute parts are available in 8-SOIC surface mount packages with identical physical dimensions (0.154" width, 3.90mm). However, packaging formats differ: the FT24C64A-ESR-T is supplied in Tape & Reel (TR), while M24C64-DRMN8TP/K is supplied in Cut Tape (CT) & Digi-Reel, 24AA64T/SN in Tape & Reel, 24LC64F-I/SN in Tube, and AT24CS64-SSHM-B in Bulk. These packaging differences do not affect electrical or mechanical compatibility; selection should be based on procurement and assembly requirements.

Q: What is the significance of the AT24CS64-SSHM-B having MSL 3 (168 Hours) versus MSL 1 (Unlimited) for other parts?

A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to ambient conditions before soldering. MSL 1 (Unlimited) means no time restriction, while MSL 3 (168 Hours) requires the component to be soldered within 168 hours of package opening. This affects storage and handling procedures but does not impact electrical performance or functional compatibility. Selection should consider manufacturing process capabilities and inventory management practices.

Q: Can I use the AT24CS64-SSHM-B in applications requiring the full -40°C to 85°C temperature range?

A: Yes. The AT24CS64-SSHM-B operates across the -40°C to 85°C temperature range, matching the FT24C64A-ESR-T specification. It is fully compatible for applications requiring this extended low-temperature performance. The device offers 1 MHz clock frequency and 550 ns access time, providing performance improvements over the original part while maintaining thermal compatibility.