Request Quote
(Ships tomorrow)
Equivalent & Substitute Parts for 24AA02HT-I/SN
Part Overview
The 24AA02HT-I/SN is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. The device is packaged in 8-SOIC surface mount configuration and operates across a supply voltage range of 1.7V to 5.5V with an operating temperature range of -40°C to 85°C. This part is currently in active product status with ROHS3 compliance and unlimited moisture sensitivity level rating.
Substitute parts are necessary when the original part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when enhanced performance characteristics such as higher clock frequency or faster access time are beneficial for system optimization.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Memory Size | 2Kbit |
| Memory Format | EEPROM |
| Memory Organization | 256 x 8 |
| Interface Type | I2C |
| Clock Frequency | 400 kHz |
| Access Time | 900 ns |
| Write Cycle Time | 5ms |
| Supply Voltage Range | 1.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Package Type | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the 24AA02HT-I/SN is determined by the following critical parameters: memory size (2Kbit), memory format (EEPROM), I2C interface compatibility, supply voltage range (1.7V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and 8-SOIC package configuration.
Substitute parts are categorized into three groups:
Direct Packaging Equivalent: Parts with identical electrical specifications but different packaging formats (Tube vs. Tape & Reel). The 24AA02H-I/SN maintains all core electrical parameters while offering alternative distribution packaging.
Manufacturer Recommended Upgrades: Parts with enhanced performance characteristics including higher clock frequency (1 MHz vs. 400 kHz) and faster access time (550 ns vs. 900 ns). These include AT24CS02-SSHM-T, AT24HC02C-SSHM-T, and AT34C02D-SSHM-T, all maintaining the same 2Kbit capacity, I2C interface, and 8-SOIC package.
Parametric Equivalents: Parts with identical electrical specifications across all key parameters, differing only in packaging format or internal memory organization variants. These include 24AA024T-I/SN, 24AA025E48T-I/SN, 24AA025E64T-I/SN, 24AA025T-I/SN, 24AA025UIDT-I/SN, and 24AA02E48T-I/SN.
Parameter Comparison
| Part Number | Manufacturer | Memory Size | Clock Frequency | Access Time | Supply Voltage | Operating Temp | Package | Packaging Format | Product Status | MSL Rating |
|---|---|---|---|---|---|---|---|---|---|---|
| 24AA02HT-I/SN | Microchip Technology | 2Kbit | 400 kHz | 900 ns | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Tape & Reel | Active | 1 (Unlimited) |
| 24AA02H-I/SN | Microchip Technology | 2Kbit | 400 kHz | 900 ns | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Tube | Active | 1 (Unlimited) |
| AT24CS02-SSHM-T | Microchip Technology | 2Kbit | 1 MHz | 550 ns | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Cut Tape & Digi-Reel | Active | 1 (Unlimited) |
| AT24HC02C-SSHM-T | Microchip Technology | 2Kbit | 1 MHz | 550 ns | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Cut Tape & Digi-Reel | Active | 3 (168 Hours) |
| AT34C02D-SSHM-T | Microchip Technology | 2Kbit | 1 MHz | Not Specified | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Cut Tape & Digi-Reel | Active | 3 (168 Hours) |
| 24AA024T-I/SN | Microchip Technology | 2Kbit | 400 kHz | 900 ns | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Tape & Reel | Active | 3 (168 Hours) |
| 24AA025E48T-I/SN | Microchip Technology | 2Kbit | 400 kHz | 900 ns | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Cut Tape & Digi-Reel | Active | 3 (168 Hours) |
| 24AA025E64T-I/SN | Microchip Technology | 2Kbit | 400 kHz | 900 ns | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Cut Tape & Digi-Reel | Active | 1 (Unlimited) |
| 24AA025T-I/SN | Microchip Technology | 2Kbit | 400 kHz | 900 ns | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Tape & Reel | Active | 1 (Unlimited) |
| 24AA025UIDT-I/SN | Microchip Technology | 2Kbit | 400 kHz | 900 ns | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Cut Tape & Digi-Reel | Active | 1 (Unlimited) |
| 24AA02E48T-I/SN | Microchip Technology | 2Kbit | 400 kHz | 900 ns | 1.7V ~ 5.5V | -40°C ~ 85°C | 8-SOIC | Cut Tape & Digi-Reel | Active | 1 (Unlimited) |
Engineering Selection Recommendations
All listed substitute parts maintain active product status with ROHS3 compliance, ensuring regulatory alignment with the original 24AA02HT-I/SN specification.
For direct replacement requiring identical electrical performance and specifications, the 24AA02H-I/SN provides equivalent functionality with Tube packaging as an alternative to Tape & Reel distribution.
For applications where enhanced performance is acceptable, the AT24CS02-SSHM-T, AT24HC02C-SSHM-T, and AT34C02D-SSHM-T offer higher clock frequency operation at 1 MHz with reduced access time of 550 ns, maintaining full backward compatibility with the 2Kbit capacity and I2C interface requirements.
Parametric equivalents including 24AA024T-I/SN, 24AA025E48T-I/SN, 24AA025E64T-I/SN, 24AA025T-I/SN, 24AA025UIDT-I/SN, and 24AA02E48T-I/SN provide identical electrical specifications with variations in packaging format and moisture sensitivity level ratings. Selection among these options depends on manufacturing process requirements and supply chain availability.
Frequently Asked Questions (FAQ)
Q: Can AT24CS02-SSHM-T, AT24HC02C-SSHM-T, or AT34C02D-SSHM-T be used as direct replacements for 24AA02HT-I/SN?
A: These parts are electrically compatible substitutes with enhanced performance characteristics. The higher clock frequency (1 MHz vs. 400 kHz) and faster access time (550 ns vs. 900 ns) provide improved performance while maintaining the same 2Kbit capacity, I2C interface, supply voltage range, and operating temperature specifications. System designs operating at 400 kHz will function correctly with these higher-speed variants.
Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?
A: Tape & Reel packaging provides continuous reel format suitable for high-volume automated assembly processes. Cut Tape & Digi-Reel packaging offers smaller quantity formats with individual tape segments, suitable for lower-volume production or mixed-component assembly operations. Both formats contain identical components in the same 8-SOIC package configuration.
Q: Are all substitute parts ROHS3 compliant?
A: All listed substitute parts maintain ROHS3 compliance status, consistent with the original 24AA02HT-I/SN specification.
Q: What does MSL (Moisture Sensitivity Level) rating indicate?
A: MSL rating indicates the maximum time a component can be exposed to ambient conditions before soldering. MSL 1 (Unlimited) allows indefinite storage without moisture control. MSL 3 (168 Hours) requires storage in controlled humidity environments and limits exposure to 168 hours at specified conditions before reflow soldering. Selection depends on manufacturing storage and handling capabilities.
Q: Can 24AA025UIDT-I/SN be used as a substitute despite different memory organization (128 x 8 x 2)?
A: The 24AA025UIDT-I/SN maintains 2Kbit total capacity with identical I2C interface, clock frequency, access time, and package configuration. The internal memory organization variant does not affect functional compatibility for standard I2C EEPROM operations.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts