93C46BT-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
93C46BT-I/SN is a 1 Kbit Microwire-compatible serial EEPROM from Microchip with up to 3 MHz clock frequency, 1,000,000 write/erase cycle endurance, and over 200 years of data retention. It interfaces via a simple 3-wire Microwire serial protocol in a compact SOIC-8 package. Available RoHS-compliant with global distribution.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93C46BT-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.0860(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
- 1 Kbit (128 x 8-bit) serial EEPROM with Microwire-compatible 3-wire interface
- Up to 3 MHz clock frequency for fast serial read and write operations
- 1,000,000 write/erase cycle endurance with over 200 years data retention
- SOIC-8 package with RoHS/JESD-609 e3 compliant lead-free construction
- Self-timed write cycle simplifies firmware design without busy-wait polling
Applications
The 93C46BT-I/SN is widely used for storing configuration data, calibration parameters, and serial numbers in consumer electronics, automotive modules, and industrial sensors. Its 3-wire Microwire interface requires minimal MCU GPIO resources, making it a low-cost non-volatile memory solution for small embedded systems. The exceptional 1,000,000 erase/write cycle endurance ensures reliable long-term operation in frequently updated configuration storage applications.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Additional Feature | 1000000 ERASE/WRITE CYCLES; DATA RETENTION > 200 YEARS |
| Clock Frequency-Max (fCLK) | 3MHz |
| 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) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many write/erase cycles and how long can the 93C46BT-I/SN reliably store data?
The 93C46BT-I/SN supports 1,000,000 erase/write cycles with a minimum data retention time exceeding 200 years. This combination of high endurance and long retention makes it suitable for storing frequently updated configuration data or calibration values in automotive, industrial, and consumer electronics designs.
What serial interface protocol does the 93C46BT-I/SN use, and how fast can it operate?
The 93C46BT-I/SN uses a 3-wire Microwire-compatible serial interface operating at clock frequencies up to 3 MHz. This simple protocol uses only chip select, clock, and data lines, minimizing the MCU GPIO pin count needed to connect 1 Kbit of non-volatile EEPROM storage.
When is the 93C46BT-I/SN preferable over an I2C EEPROM for a small embedded design?
The 93C46BT-I/SN's Microwire 3-wire interface can be simpler to implement on MCUs that lack hardware I2C peripherals, since it does not require pull-up resistors or address arbitration. Its 1 Kbit capacity in an 8-pin SOIC-8 footprint is sufficient for storing a few dozen bytes of calibration or configuration data in cost-sensitive embedded products.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3390 | $0.34 |
| 10+ | $0.3360 | $3.36 |
| 100+ | $0.2600 | $26.00 |
| 250+ | $0.1247 | $31.18 |
| 500+ | $0.1235 | $61.75 |
| 1000+ | $0.0860 | $86.00 |
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