93LC46B-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
93LC46B-I/SN is a 1Kbit (64x16) serial EEPROM from Microchip in an 8-pin SOIC package. It features a Microwire-compatible interface with 2MHz clock, 1 million erase/write cycles, and over 200-year data retention. From $0.30, available in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93LC46B-I/SN 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 million minimum erase/write cycles with over 200-year data retention for extreme reliability
- 16-bit wide organization (64x16) enables efficient word-level access via Microwire serial interface at 2MHz
- RoHS-compliant 8-pin SOIC package with Pb-free construction for modern manufacturing compatibility
Applications
The 93LC46B-I/SN is well-suited for storing calibration data, configuration settings, and user preferences in appliances, industrial controllers, and automotive accessories. Its extraordinary 200-year data retention and 1 million cycle endurance make it reliable for safety-critical applications requiring long-term non-volatile memory. The compact SOIC-8 package and simple 3-wire Microwire interface enable easy integration into both new designs and legacy system upgrades.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Additional Feature | 1000000 ERASE/WRITE CYCLES MIN; DATA RETENTION > 200 YEARS |
| 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 |
| Output Characteristics | TOTEM POLE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| 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) | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 6ms |
| Write Protection | SOFTWARE |
| 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 93LC46B-I/SN:
Frequently Asked Questions
What are the memory capacity and organization of the 93LC46B-I/SN?
The 93LC46B-I/SN provides 1Kbit of EEPROM storage organized as 64 words of 16 bits each. This word-wide organization allows efficient read and write access of 16-bit data values, which is useful for storing configuration registers, calibration coefficients, and user settings.
What endurance and data retention does the 93LC46B-I/SN offer?
The 93LC46B-I/SN guarantees a minimum of 1,000,000 erase/write cycles and data retention exceeding 200 years. These outstanding reliability specifications make it one of the most durable EEPROM solutions available for embedded applications requiring long service life.
What interface does the 93LC46B-I/SN use and what is its maximum clock speed?
The 93LC46B-I/SN uses a Microwire-compatible 3-wire serial interface and supports clock frequencies up to 2MHz. This simple interface requires minimal GPIO pins on the host controller, making it easy to integrate into microcontroller-based designs with limited I/O resources.
Is the 93LC46B-I/SN RoHS compliant, and what package does it come in?
Yes, the 93LC46B-I/SN is Pb-free (RoHS compliant) with JESD-609 code e3. It is packaged in an 8-pin SOIC (Small Outline IC) format, a widely used surface-mount package compatible with standard PCB assembly and automated manufacturing processes.
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