93LC56AT-I/OT Microchip Integrated Circuit (SOT23 (6-Pin)) In Stock
The 93LC56AT-I/OT is a 2Kbit (256 x 8) serial EEPROM from Microchip Technology, featuring a 3-wire SPI-compatible interface with 2 MHz clock, 1,000,000 write/erase cycle endurance, and 200-year minimum data retention in a compact 6-pin SOT-23 package. Rated for industrial temperature ranges and in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- 93LC56AT-I/OT Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1,000,000 write/erase cycle endurance ensures long operational lifetime in data-logging and configuration storage applications
- 200-year minimum data retention provides reliable long-term non-volatile storage without power
- 2 MHz SPI-compatible 3-wire serial interface enables simple integration with virtually any microcontroller
- Compact 6-pin SOT-23 package (R-PDSO-G6) minimizes PCB footprint for space-constrained embedded designs
Applications
The 93LC56AT-I/OT is used in embedded systems requiring small-footprint, non-volatile serial EEPROM storage for configuration data, calibration coefficients, and device identifiers. It is commonly found in consumer electronics, industrial sensors, medical devices, and automotive accessories where 2Kbit of reliable data storage with a simple 3-wire interface is needed. The industrial temperature rating and high endurance make it suitable for harsh-environment IoT nodes, smart meters, and field instruments.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-6 |
| Factory Lead Time | 12Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 2MHz |
| 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 | TSOP5/6,.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 | MICROWIRE |
| 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) | 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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Toggle Bit | YES |
| Write Cycle Time-Max (tWC) | 6ms |
| Write Protection | SOFTWARE |
| ## 93LC56AT-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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 93LC56AT-I/OT:
suggested
suggested
Frequently Asked Questions
What is the memory capacity and organization of the 93LC56AT-I/OT?
The 93LC56AT-I/OT is a 2Kbit serial EEPROM organized as 256 x 8 bits (256 bytes). This makes it suitable for storing small amounts of non-volatile data such as configuration settings, serial numbers, calibration constants, and lookup tables in embedded systems.
What interface does the 93LC56AT-I/OT use and what is its maximum clock speed?
The 93LC56AT-I/OT uses a 3-wire SPI-compatible serial interface (Microwire protocol) for communication. It supports a maximum clock frequency of 2 MHz, enabling fast read and write operations with minimal load on the host microcontroller.
How many write cycles can the 93LC56AT-I/OT endure and what is its data retention?
The 93LC56AT-I/OT is rated for 1,000,000 write/erase cycles per memory location, ensuring excellent longevity for applications with frequent updates. It also guarantees a minimum data retention time of 200 years, providing reliable long-term non-volatile storage.
What package does the 93LC56AT-I/OT use and is it suitable for SMT assembly?
The 93LC56AT-I/OT is packaged in a 6-pin SOT-23 (JESD-30 code R-PDSO-G6), a standard surface-mount package widely supported by automated SMT assembly processes. Its small footprint makes it ideal for compact PCB designs in consumer, industrial, and medical applications.
Is the 93LC56AT-I/OT suitable for industrial environments?
Yes, the 93LC56AT-I/OT is rated for industrial temperature operation, as indicated by the -I in the part number. It is also RoHS compliant (Pbfree Code: Yes, JESD-609 code e3), making it appropriate for industrial sensors, field instruments, smart meters, and IoT devices operating in harsh environments.
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