AT24C256C-SSHL-BAlternatives & Equivalent Parts
About AT24C256C-SSHL-B
AT24C256C-SSHL-B 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.
Specification Comparison
| Parameter | AT24C256C-SSHL-BSource | OPA4277UA | MCP4728A4T-E/UNVAO |
|---|---|---|---|
| Manufacturer | Microchip | Texas Instruments | Microchip |
| Package Type | Small Outline Packages | Small Outline Packages | Small Outline Packages |
| Pin Count | 8 | 14 | 10 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 125.0°C |
| Price | $0.4129 | $1.0918 | — |
| Electrical Parameters | |||
| Pbfree Code | Yes | Yes | — |
| Manufacturer Package Code | SOIC-8 | — | MSOP-10 |
| Factory Lead Time | 7 Weeks | — | 20 Weeks |
| YTEOL | 14 | 15 | 13 |
| Additional Feature | ALSO OPERATES 1.7V TO 5.5V @0.4MHZ | — | — |
| Clock Frequency-Max (fCLK) | 1 MHz | — | — |
| Data Retention Time-Min | 100 | — | — |
| Endurance | 1000000 Write/Erase Cycles | — | — |
| I2C Control Byte | 1010DDDR | — | — |
| JESD-30 Code | R-PDSO-G8 | R-PDSO-G14 | S-PDSO-G10 |
| JESD-609 Code | e3 | e4 | e3 |
| Memory Density | 262144 bit | — | — |
| Memory IC Type | EEPROM | — | — |
| Memory Width | 8 | — | — |
| Number of Functions | 1 | 4 | 1 |
| Number of Ports | 1 | — | — |
| Number of Words | 32768 words | — | — |
| Number of Words Code | 32000 | — | — |
| Operating Mode | SYNCHRONOUS | — | — |
| Organization | 32KX8 | — | — |
| Output Characteristics | OPEN-DRAIN | — | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 | SOP14,.25 | TSSOP10,.19,20 |
| Package Shape | RECTANGULAR | RECTANGULAR | SQUARE |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Parallel/Serial | SERIAL | — | — |
| Peak Reflow Temperature (Cel) | 260 | 260 | — |
| Programming Voltage | 3 V | — | — |
| Qualification Status | Not Qualified | Not Qualified | — |
| Screening Level | TS 16949 | — | AEC-Q100 |
| Serial Bus Type | I2C | — | — |
| Standby Current-Max | 0.000006 A | — | — |
| Supply Current-Max | 0.003 mA | 3.6 mA | 1.4 mA |
| Supply Voltage-Max (Vsup) | 5.5 V | — | — |
| Supply Voltage-Min (Vsup) | 2.5 V | — | — |
| Supply Voltage-Nom (Vsup) | 3 V | 15 V | — |
| Surface Mount | YES | YES | YES |
| Technology | CMOS | BIPOLAR | — |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm | 0.5 mm |
| Terminal Position | DUAL | DUAL | DUAL |
| Write Cycle Time-Max (tWC) | 5 ms | — | — |
| Write Protection | HARDWARE | — | — |
| ## AT24C256C-SSHL-B Alternates Showing results | Image | — | — |
| Amplifier Type | — | OPERATIONAL AMPLIFIER | — |
| Architecture | — | VOLTAGE-FEEDBACK | — |
| Average Bias Current-Max (IIB) | — | 0.004 µA | — |
| Bias Current-Max (IIB) @25C | — | 0.0028 µA | — |
| Common-mode Reject Ratio-Min | — | 115 dB | — |
| Common-mode Reject Ratio-Nom | — | 140 dB | — |
| Frequency Compensation | — | YES | — |
| Input Offset Current-Max (IIO) | — | 0.0028 µA | — |
| Input Offset Voltage-Max | — | 50 µV | — |
| Low-Bias | — | NO | — |
| Low-Offset | — | YES | — |
| Micropower | — | YES | — |
| Neg Supply Voltage Limit-Max | — | -18 V | — |
| Neg Supply Voltage-Nom (Vsup) | — | -15 V | — |
| Packing Method | — | TUBE | — |
| Power | — | NO | — |
| Programmable Power | — | NO | — |
| Slew Rate-Nom | — | 0.8 V/us | — |
| Subcategory | — | Operational Amplifier | — |
| Supply Voltage Limit-Max | — | 18 V | — |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | — |
| Unity Gain BW-Nom | — | 1000 | — |
| Voltage Gain-Min | — | 1995000 | — |
| Wideband | — | NO | — |
| ## OPA4277UA Alternates Showing results | — | Image | — |
| Analog Output Voltage-Max | — | — | 5.5 V |
| Converter Type | — | — | D/A CONVERTER |
| Input Bit Code | — | — | BINARY |
| Input Format | — | — | SERIAL |
| Linearity Error-Max (EL) | — | — | 0.3174% |
| Number of Bits | — | — | 12 |
| Settling Time-Nom (tstl) | — | — | 6 µs |
| Supply Voltage-Nom | — | — | 5 V |
| ## MCP4728A4T-E/UNVAO Alternates Showing results | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Why Look for Alternatives?
Finding alternatives for AT24C256C-SSHL-B 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 AT24C256C-SSHL-B 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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What is equivalent to AT24C256C-SSHL-B?
Known equivalents for AT24C256C-SSHL-B include OPA4277UA, MCP4728A4T-E/UNVAO. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of AT24C256C-SSHL-B?
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 AT24C256C-SSHL-B 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.