93C46B/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
The 93C46B/SN is a 1Kbit (64x16) SPI serial EEPROM from Microchip Technology offering up to 2MHz clock frequency and 1 million write/erase cycle endurance in an 8-pin SOIC package. It provides 200-year minimum data retention and operates from standard supply voltages for non-volatile storage. Available from stock worldwide with competitive pricing for high-volume applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93C46B/SN Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1Kbit (64x16) serial EEPROM with SPI interface supports up to 2MHz clock for fast non-volatile data access
- 1 million write/erase cycle endurance ensures long operational lifetime in frequently updated configuration storage
- 200-year minimum data retention guarantees reliable non-volatile storage across the product lifetime
- 8-pin SOIC package (RoHS compliant, JESD-609 e3) enables easy hand and automated PCB assembly
Applications
The 93C46B/SN is widely used for storing calibration data, configuration parameters, and trim values in consumer electronics, industrial sensors, and automotive modules where small, reliable non-volatile memory is required. Its SPI-compatible Microwire interface and compact SOIC-8 footprint make it ideal for microcontroller-based systems needing to retain settings across power cycles, such as remote controls, smart meters, and white goods controllers. It is also used in networking equipment and set-top boxes for MAC address and configuration storage.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 2MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 1024bit |
| Memory IC Type | EEPROM |
| Memory Width | 16 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 64words |
| Number of Words Code | 64 |
| Operating Mode | SYNCHRONOUS |
| Organization | 64X16 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Programming Voltage | 5V |
| Qualification Status | Not Qualified |
| Serial Bus Type | MICROWIRE |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.0015mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 2ms |
| Write Protection | HARDWARE/SOFTWARE |
| ## 93C46B/SN Alternates Showing results | Image |
| Package | Small Outline Packages |
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 93C46B/SN:
suggested
Frequently Asked Questions
What is the memory organization and capacity of the 93C46B/SN?
The 93C46B/SN is a 1Kbit EEPROM organized as 64 words of 16 bits each, providing a total of 1024 bits of non-volatile storage. This 16-bit word organization is suitable for applications that need to read and write 16-bit data values such as calibration constants or configuration registers.
What is the maximum clock frequency and interface type of the 93C46B/SN?
The 93C46B/SN uses a Microwire serial interface compatible with SPI and operates at up to 2MHz clock frequency, enabling quick access to stored data in microcontroller systems. The serial interface requires only a few I/O pins, making it ideal for pin-constrained designs.
How long is the data retention and endurance of the 93C46B/SN?
The 93C46B/SN guarantees a minimum data retention time of 200 years and supports up to 1 million write/erase cycles, making it highly reliable for applications requiring frequent updates to stored values over the entire product lifetime without risk of data loss.
What package does the 93C46B/SN use and is it RoHS compliant?
The 93C46B/SN is packaged in an 8-pin SOIC (Small Outline IC) package, Microchip package code SOIC-8 (JESD-30 R-PDSO-G8), and is fully RoHS compliant as indicated by its JESD-609 e3 code and lead-free designation, suitable for eco-compliant manufacturing.
What are typical applications for the 93C46B/SN?
This EEPROM is commonly used in consumer electronics for storing user preferences and device settings, in industrial equipment for calibration data and trim values, in automotive systems for storing non-critical configuration, and in networking devices for MAC address and device ID storage where small, reliable, non-volatile memory is needed.
Related Guides
CDCE913PWR Programmable Clock Synthesizer Design Guide
Complete design guide for the CDCE913PWR clock synthesizer: VCO range, I2C programming, decoupling, and layout best practices for embedded systems.
May 22, 2026
OPA4277MDTEP Precision Quad Op-Amp Selection Guide: How to Choose the Right Variant
How to choose the right OPA4277 quad precision op-amp variant—OPA4277MDTEP vs UA—covering offset voltage, CMRR, supply range, and temperature grade.
May 22, 2026
SN74LVC14APWR Hex Schmitt-Trigger Inverter: Application Note and Design Guide
Complete design guide for the SN74LVC14APWR hex Schmitt-trigger inverter: thresholds, decoupling, oscillator design, package selection, and common pitfalls.
May 21, 2026
TPS62841DGRR Buck Converter Selection Guide: Ultra-Low 60 nA IQ for Battery-Powered IoT
How to choose the right TPS62841 variant for IoT, wearables, and wireless sensors: quiescent current, voltage range, package, and application examples.
May 21, 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.
More from Microchip
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.”