93AA56AT-I/OT Microchip Integrated Circuit (SOT23 (6-Pin)) In Stock
The 93AA56AT-I/OT is a 2048-bit (128 x 16 or 256 x 8) SPI serial EEPROM by Microchip in a compact SOT-23-6 package. Key specs: 1 MHz clock, 1,000,000 write/erase endurance cycles, and 200-year data retention. Available from stock worldwide with same-day shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- 93AA56AT-I/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2399(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 93AA56AT-I/OT?
- 2048-bit density with selectable 8-bit or 16-bit word organization for flexible embedded storage
- 1,000,000 write/erase cycle endurance and 200-year data retention ensure long-term nonvolatile reliability
- Compact SOT-23-6 footprint with 1 MHz SPI interface minimizes board area in space-constrained designs
What is 93AA56AT-I/OT used for?
The 93AA56AT-I/OT is used in embedded systems requiring small nonvolatile configuration storage, such as smart meters, industrial sensors, and IoT node calibration data. Its 256-byte capacity and 1 MHz SPI interface are well-matched to microcontrollers storing trim coefficients, MAC addresses, or board serial numbers. The SOT-23-6 package and 1.8 V to 5.5 V supply range make it ideal for battery-powered wearables and portable instruments.
What are the specifications of 93AA56AT-I/OT?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-6 |
| Factory Lead Time | 12Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 1MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Memory Density | 2048bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 256words |
| Number of Words Code | 256 |
| Operating Mode | SYNCHRONOUS |
| Organization | 256X8 |
| Output Characteristics | TOTEM POLE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Ready/Busy | YES |
| Reverse Pinout | NO |
| Screening Level | TS 16949 |
| Serial Bus Type | MICROWIRE |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.002mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.8V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Toggle Bit | YES |
| Write Cycle Time-Max (tWC) | 6ms |
| Write Protection | SOFTWARE |
| ## 93AA56AT-I/OT Alternates Showing results | Image |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Thailand |
Where can I find the 93AA56AT-I/OT datasheet?
93AA56AT-I/OT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for 93AA56AT-I/OT?
Compatible alternatives and drop-in replacements for 93AA56AT-I/OT:
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Frequently Asked Questions
What word-width organization options does the 93AA56AT-I/OT support and how are they selected?
The 93AA56AT-I/OT offers two organization modes: 128 words of 16 bits each, or 256 words of 8 bits each, selected by the ORG pin logic level at power-up. Pulling ORG high selects the 8-bit mode for byte-oriented microcontrollers, while pulling it low enables 16-bit mode for 16-bit processors, with no firmware change required beyond adjusting the address space from 128 to 256 locations.
How many write cycles can the 93AA56AT-I/OT sustain before wear reduces reliability, and what does that mean for a data-logging application?
The 93AA56AT-I/OT is rated for 1,000,000 write/erase cycles per address with 200-year data retention at 25°C. In a data-logging application writing one calibration byte every 10 minutes, that translates to approximately 19 years of endurance before reaching the rated limit—far exceeding the 10-year design life of most industrial sensor nodes.
For a compact IoT sensor design, how much board space does the SOT-23-6 package of 93AA56AT-I/OT require versus an 8-SOIC alternative?
The SOT-23-6 package measures approximately 1.6 mm × 2.9 mm with a 0.95 mm pitch, occupying under 5 mm² of board area including pads—roughly 60% less than the 8-SOIC package at 5 mm × 4 mm. This reduction is significant in wearable or coin-cell IoT designs where total PCB area budget may be under 200 mm², and every square millimeter of component footprint counts.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2399 | $0.24 |
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