93LC46AT-I/OT Microchip Integrated Circuit (SOT23 (6-Pin)) In Stock
The 93LC46AT-I/OT is a 1Kbit (128x8) serial EEPROM from Microchip with a 3-wire Microwire-compatible SPI interface, 3MHz maximum clock frequency, 1 million write/erase cycles endurance, and a minimum 200-year data retention period in a compact 6-pin SOT-23 package. It operates over an industrial temperature range and is suited for storing calibration data and configuration parameters in embedded systems. Available in stock from authorized distributors worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- 93LC46AT-I/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2284(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
- 1Kbit (128x8) EEPROM with Microwire-compatible 3-wire SPI interface for easy integration with most microcontrollers
- 1 million write/erase cycle endurance for long product lifetime in frequently updated configuration storage
- Minimum 200-year data retention ensuring non-volatile storage reliability over the full product lifecycle
- 3MHz maximum clock frequency supporting high-speed serial communication in fast embedded applications
- Compact 6-pin SOT-23 package enabling minimal PCB footprint for space-constrained portable and industrial designs
Applications
The 93LC46AT-I/OT is widely used for storing non-volatile configuration data, calibration constants, and device identifiers in embedded systems such as industrial sensors, consumer electronics, and automotive modules. Its Microwire-compatible interface ensures broad compatibility with PIC, AVR, ARM, and other popular microcontroller families through standard SPI peripherals. The device is also well suited for EEPROM emulation in smart meters, medical devices, and communication equipment requiring reliable data retention over extended product lifetimes.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-6 |
| Factory Lead Time | 5Weeks |
| 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 |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Ready/Busy | YES |
| Reverse Pinout | NO |
| Screening Level | TS 16949 |
| Serial Bus Type | I2C |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.002mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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
What is the memory density and organization of the 93LC46AT-I/OT?
The 93LC46AT-I/OT is a 1Kbit EEPROM organized as 128 words x 8 bits (128 bytes). This density is suitable for storing small amounts of non-volatile data such as serial numbers, calibration coefficients, configuration settings, and device-specific parameters in embedded systems.
What interface does the 93LC46AT-I/OT use and what is its maximum clock speed?
The 93LC46AT-I/OT uses a 3-wire Microwire-compatible serial interface (a subset of SPI) with a maximum clock frequency of 3MHz. This interface is directly supported by most microcontrollers' hardware SPI peripherals, making integration straightforward without requiring bit-banging or special firmware.
What are the endurance and data retention specifications of the 93LC46AT-I/OT?
The 93LC46AT-I/OT is rated for a minimum of 1 million write/erase cycles per byte, ensuring extremely long operational life even in applications with frequent configuration updates. Its minimum data retention time is 200 years, guaranteeing that stored data will not be lost over the expected product lifetime under normal storage conditions.
What package does the 93LC46AT-I/OT use and what are its operating conditions?
The 93LC46AT-I/OT comes in a 6-pin SOT-23 surface-mount package (Manufacturer code SOT-23-6, JEDEC code R-PDSO-G6). It is rated for industrial temperature operation, making it suitable for use in environments with wide temperature variations such as industrial equipment, outdoor electronics, and automotive accessory modules.
What applications is the 93LC46AT-I/OT commonly used for?
The 93LC46AT-I/OT is commonly used to store non-volatile configuration data, serial numbers, and calibration constants in embedded systems. Typical applications include smart meters, industrial sensors, consumer appliances, medical devices, networking equipment, and automotive modules where a small amount of reliable non-volatile storage is needed alongside a host microcontroller.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2284 | $0.23 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”