24AA256-I/STAlternatives & Equivalent Parts
About 24AA256-I/ST
24AA256-I/ST is a Integrated Circuit component manufactured by Microchip. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | 24AA256-I/STSource | 24AA256UID-I/ST | MCP79412-I/MS | 24AA08-I/MS | 24AA08-I/ST | 24AA256-I/MF | 24AA32AT-I/MC | 24FC64-I/P | 24LC024H-I/ST | 24LC128-I/MS | 24LC16B-I/MS |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip | Microchip | Microchip | Microchip | Microchip | Microchip | Microchip | Microchip | Microchip |
| Package Type | Small Outline Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages | Small Outline No-lead | Small Outline No-lead | Dual-In-Line Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages |
| Pin Count | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | — |
| Price | $0.3801 | $0.9600 | $0.8920 | $0.3136 | $0.3200 | $0.3700 | $0.4636 | $0.4901 | $0.3200 | $0.3900 | $0.3700 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | |||||||||||
| Pbfree Code | Yes | — | — | Yes | Yes | Yes | Yes | Yes | — | Yes | Yes |
| Manufacturer Package Code | TSSOP-8 | TSSOP-8 | MSOP-8 | MSOP-8 | TSSOP-8 | DFN-S-8 | DFN-8 | PDIP-8 | TSSOP-8 | MSOP-8 | MSOP-8 |
| Factory Lead Time | 9 Weeks | 6 Weeks | 11 Weeks | 11 Weeks | 9 Weeks | 13 Weeks | 24 Weeks | 24 Weeks | 17 Weeks | 13 Weeks | 11 Weeks |
| YTEOL | 8 | 13 | 13 | — | — | 8 | 9 | 8 | 9 | 8 | 8 |
| Clock Frequency-Max (fCLK) | 0.4 MHz | 0.4 MHz | — | 0.1 MHz | 0.1 MHz | 0.4 MHz | 0.1 MHz | 1 MHz | 1 MHz | 0.4 MHz | — |
| Data Retention Time-Min | 200 | 200 | — | 200 | 200 | 200 | 200 | 200 | 200 | 200 | — |
| Endurance | 1000000 Write/Erase Cycles | 1000000 Write/Erase Cycles | — | 1000000 Write/Erase Cycles | 1000000 Write/Erase Cycles | 1000000 Write/Erase Cycles | 1000000 Write/Erase Cycles | 1000000 Write/Erase Cycles | 1000000 Write/Erase Cycles | 1000000 Write/Erase Cycles | — |
| I2C Control Byte | 1010DDDR | 1010DDDR | — | 1010XMMR | 1010XMMR | 1010DDDR | 1010DDDR | 1010DDDR | 1010DDDR | 1010DDDR | — |
| JESD-30 Code | R-PDSO-G8 | R-PDSO-G8 | S-PDSO-G8 | S-PDSO-G8 | R-PDSO-G8 | R-PDSO-N8 | R-PDSO-N8 | R-PDIP-T8 | R-PDSO-G8 | S-PDSO-G8 | — |
| JESD-609 Code | e3 | e3 | e3 | e3 | e3 | e3 | e3 | e3 | e3 | e3 | — |
| Memory Density | 262144 bit | 262144 bit | — | 8192 bit | 8192 bit | 262144 bit | 32768 bit | 65536 bit | 2048 bit | 131072 bit | — |
| Memory IC Type | EEPROM | EEPROM | — | EEPROM | EEPROM | EEPROM | EEPROM | EEPROM | EEPROM | EEPROM | EEPROM |
| Memory Width | 8 | 8 | — | 8 | 8 | 8 | 8 | 8 | 8 | 8 | — |
| Number of Functions | 1 | 1 | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — |
| Number of Ports | 1 | 1 | — | — | — | 1 | — | 1 | 1 | 1 | — |
| Number of Words | 32768 words | 32768 words | — | 1024 words | 1024 words | 32768 words | 4096 words | 8192 words | 256 words | 16384 words | — |
| Number of Words Code | 32000 | 32000 | — | 1000 | 1000 | 32000 | 4000 | 8000 | 256 | 16000 | — |
| Operating Mode | SYNCHRONOUS | SYNCHRONOUS | — | SYNCHRONOUS | SYNCHRONOUS | SYNCHRONOUS | SYNCHRONOUS | SYNCHRONOUS | SYNCHRONOUS | SYNCHRONOUS | — |
| Organization | 32KX8 | 32KX8 | — | 1KX8 | 1KX8 | 32KX8 | 4KX8 | 8KX8 | 256X8 | 16KX8 | — |
| Output Characteristics | OPEN-DRAIN | OPEN-DRAIN | — | — | — | OPEN-DRAIN | — | OPEN-DRAIN | OPEN-DRAIN | OPEN-DRAIN | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — |
| Package Equivalence Code | TSSOP8,.25 | TSSOP8,.25 | SOP8,.19 | TSSOP8,.19 | TSSOP8,.25 | SOLCC8,.25 | SOLCC8,.11,20 | DIP8,.3 | TSSOP8,.25 | SOP8,.19 | — |
| Package Shape | RECTANGULAR | RECTANGULAR | SQUARE | SQUARE | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | SQUARE | — |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE | IN-LINE | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE | — |
| Parallel/Serial | SERIAL | SERIAL | — | SERIAL | SERIAL | SERIAL | SERIAL | SERIAL | SERIAL | SERIAL | — |
| Peak Reflow Temperature (Cel) | 260 | — | 260 | 260 | 260 | 260 | 260 | — | 260 | 260 | 260 |
| Programming Voltage | 2.5 V | 4.5 V | — | — | — | 2.5 V | — | 4.5 V | 4.5 V | 4.5 V | — |
| Qualification Status | Not Qualified | — | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Reverse Pinout | NO | — | — | — | — | NO | — | — | — | — | — |
| Screening Level | AEC-Q100 | TS 16949 | TS 16949 | — | — | AEC-Q100 | — | — | TS 16949 | AEC-Q100 | — |
| Serial Bus Type | I2C | I2C | — | I2C | I2C | I2C | I2C | I2C | I2C | I2C | — |
| Standby Current-Max | 0.000005 A | 0.000001 A | — | 0.000001 A | 0.000001 A | 0.000005 A | 0.000001 A | 0.000001 A | 0.000005 A | 0.000005 A | — |
| Supply Current-Max | 0.003 mA | 0.003 mA | 3 mA | 0.003 mA | 0.003 mA | 0.003 mA | 0.003 mA | 0.003 mA | 0.003 mA | 0.003 mA | — |
| Supply Voltage-Max (Vsup) | 5.5 V | 5.5 V | — | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | — |
| Supply Voltage-Min (Vsup) | 1.7 V | 2.5 V | — | 1.7 V | 1.7 V | 1.7 V | 1.7 V | 2.5 V | 2.5 V | 2.5 V | — |
| Supply Voltage-Nom (Vsup) | 2.5 V | 4.5 V | — | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 4.5 V | 4.5 V | 4.5 V | — |
| Surface Mount | YES | YES | YES | YES | YES | YES | YES | NO | YES | YES | — |
| Technology | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | — |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL | — |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING | NO LEAD | NO LEAD | THROUGH-HOLE | GULL WING | GULL WING | — |
| Terminal Pitch | 0.65 mm | 0.65 mm | 0.65 mm | 0.65 mm | 0.65 mm | 1.27 mm | 0.5 mm | 2.54 mm | 0.65 mm | 0.65 mm | — |
| Terminal Position | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | — |
| Time@Peak Reflow Temperature-Max (s) | 40 | — | 40 | 40 | 40 | 40 | — | — | 40 | 40 | 40 |
| Write Cycle Time-Max (tWC) | 5 ms | 5 ms | — | 5 ms | 5 ms | 5 ms | 5 ms | 5 ms | 5 ms | 5 ms | — |
| Write Protection | HARDWARE | — | — | HARDWARE | HARDWARE | HARDWARE | HARDWARE | HARDWARE | HARDWARE | HARDWARE | — |
| Additional Feature | — | ALSO OPERATES AT 1.7V TO 2.5V @ 0.1MHZ | ALSO OPERATES AT 100KHZ WITH 1.8 V NOMINAL | — | — | — | 2-WIRE SERIAL INTERFACE; DATA RETENTION > 200 YEARS; 1000000 ERASE/WRITE CYCLES GUARANTEED | — | — | — | — |
| Clock Frequency-Max | — | — | 0.032 MHz | — | — | — | — | — | — | — | — |
| Information Access Method | — | — | SERIAL(I2C) | — | — | — | — | — | — | — | — |
| Interrupt Capability | — | — | Y | — | — | — | — | — | — | — | — |
| On Chip Data RAM Width | — | — | 8 | — | — | — | — | — | — | — | — |
| RAM (words) | — | — | 64 | — | — | — | — | — | — | — | — |
| Supply Voltage-Max | — | — | 5.5 V | — | — | — | — | — | — | — | — |
| Supply Voltage-Min | — | — | 1.8 V | — | — | — | — | — | — | — | — |
| Supply Voltage-Nom | — | — | 2.5 V | — | — | — | — | — | — | — | — |
| Time-Min | — | — | SECONDS | — | — | — | — | — | — | — | — |
| Volatile | — | — | NO | — | — | — | — | — | — | — | — |
| uPs/uCs/Peripheral ICs Type | — | — | TIMER, REAL TIME CLOCK | — | — | — | — | — | — | — | — |
| ## MCP79412-I/MS Alternates Showing results | — | — | Image | — | — | — | — | — | — | — | — |
| Power Supplies | — | — | — | 2/5 V | 2/5 V | — | — | — | — | — | — |
| Subcategory | — | — | — | EEPROMs | EEPROMs | — | — | — | — | — | — |
| Reach Compliance Code | — | — | — | — | — | — | — | — | — | — | Compliant |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Get one quote covering all 10 alternatives for 24AA256-I/ST — response within 24 hours.
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Why Look for Alternatives?
Finding alternatives for 24AA256-I/ST is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating 24AA256-I/ST replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to 24AA256-I/ST?
Known equivalents for 24AA256-I/ST include 24AA256UID-I/ST, MCP79412-I/MS, 24AA08-I/MS. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of 24AA256-I/ST?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify 24AA256-I/ST alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.