93AA46AT-I/OT Microchip Integrated Circuit (SOT23 (6-Pin)) In Stock
Microchip 93AA46AT-I/OT is a 1K-bit Microwire-compatible serial EEPROM in a compact SOT-23-6 package operating at up to 3 MHz clock. Offers 1 million write/erase cycles and 200-year data retention for reliable non-volatile storage. RoHS compliant and available in tape and reel for automated PCB assembly.
- Manufacturer
- Microchip
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- 93AA46AT-I/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1412(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1K-bit (128-byte) serial EEPROM using Microwire-compatible 3-wire SPI interface up to 3 MHz
- 1 million write/erase cycle endurance with 200-year minimum data retention
- Ultra-compact SOT-23-6 package enabling space-efficient non-volatile storage on small PCBs
- Wide voltage range operation supporting 1.8 V to 5.5 V power supplies
- RoHS and Pb-free compliant for environmentally responsible designs
Applications
The 93AA46AT-I/OT is ideal for storing calibration constants, configuration settings, and device identification data in battery-powered portable electronics and IoT sensor modules. Its Microwire interface and compact SOT-23-6 footprint make it a drop-in non-volatile memory choice for microcontroller-based designs with limited board space. The 1 million endurance cycles support frequent write operations in smart meters, industrial sensors, and consumer appliances requiring persistent parameter storage.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-6 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 3MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Memory Density | 1024bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 128words |
| Number of Words Code | 128 |
| Operating Mode | SYNCHRONOUS |
| Organization | 128X8 |
| Output Characteristics | TOTEM POLE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Parallel/Serial | SERIAL |
| 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 |
| Write Cycle Time-Max (tWC) | 6ms |
| Write Protection | SOFTWARE |
| 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 | Malaysia, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many write/erase cycles can the 93AA46AT-I/OT endure before wearing out, and does it suit high-frequency update applications?
The 93AA46AT-I/OT is rated for 1 million write/erase cycles per cell, making it suitable for applications that update stored parameters frequently. Data retention is guaranteed for a minimum of 200 years after the last write, so designs updating configuration registers once per hour will remain within endurance limits for decades of continuous operation.
Which supply voltage range does the 93AA46AT-I/OT support for mixed-voltage embedded systems?
The 93AA46AT-I/OT operates from 1.8 V to 5.5 V, covering both 3.3 V and 5 V microcontroller systems without level-shifting. This wide 1.8 V to 5.5 V range simplifies integration into battery-backed designs running from a single-cell LiPo at 3.7 V or legacy 5 V industrial controllers, reducing external power management circuitry.
For a compact wearable design, how much board space does the 93AA46AT-I/OT's SOT-23-6 package require?
The SOT-23-6 package measures approximately 2.9 mm × 1.6 mm, occupying under 5 mm² of PCB footprint. This tiny 6-pin package is one of the smallest available for serial EEPROM devices, making the 93AA46AT-I/OT an excellent choice for wearables, hearing aids, and compact IoT tags where board space is at a premium.
When would 93AA46AT-I/OT be preferred over an I2C EEPROM like 24AA01 for a new embedded design?
The 93AA46AT-I/OT uses a Microwire/SPI-compatible 3-wire interface running at up to 3 MHz, which is faster than standard 400 kHz I2C EEPROMs like the 24AA01. If the host microcontroller already has an SPI peripheral or the application demands faster serial read access for configuration loading at startup, the 93AA46AT-I/OT provides lower latency reads with simpler CS-based chip selection versus I2C address arbitration.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1460 | $0.15 |
| 10+ | $0.1436 | $1.44 |
| 25+ | $0.1412 | $3.53 |
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