93LC66BT-I/MNY Microchip Integrated Circuit (Small Outline No-lead) In Stock
Microchip 93LC66BT is a 4 Kbit serial EEPROM organized as 256 x 16-bit words, operating from 2.5 V to 5.5 V with a 2 MHz Microwire interface. It offers 1,000,000 write/erase endurance cycles and 200-year data retention in a compact 8-pin TDFN package.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93LC66BT-I/MNY Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3264(MOQ 100)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 Kbit EEPROM organized as 256 x 16-bit words
- Wide supply range from 2.5 V to 5.5 V for 3.3 V and 5 V systems
- 2 MHz Microwire serial interface for fast data transfer
- 1,000,000 write/erase endurance cycles with 200-year data retention
- 8-pin TDFN package for compact PCB footprint
Applications
The 93LC66BT-I/MNY is commonly used for storing calibration data, configuration parameters, and user preferences in consumer electronics, automotive subsystems, and industrial sensors. Its wide voltage range and high endurance make it suitable for applications requiring frequent non-volatile updates, such as smart meters, handheld devices, and IoT edge nodes.
Specifications
| Manufacturer Package Code | TDFN-8 |
| Factory Lead Time | 23Weeks |
| YTEOL | 14 |
| Clock Frequency-Max (fCLK) | 2MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-N8 |
| JESD-609 Code | e4 |
| Memory Density | 4096bit |
| Memory IC Type | EEPROM |
| Memory Width | 16 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 256words |
| Number of Words Code | 256 |
| Operating Mode | SYNCHRONOUS |
| Organization | 256X16 |
| Output Characteristics | TOTEM POLE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Toggle Bit | YES |
| Write Cycle Time-Max (tWC) | 6ms |
| Write Protection | SOFTWARE |
| Package | Small Outline No-lead |
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 cycles can the 93LC66BT-I/MNY endure before reliability degrades?
The 93LC66BT is rated for 1,000,000 write/erase cycles per cell with a minimum data retention of 200 years, making it reliable for applications requiring frequent configuration or calibration updates across a -40°C to +85°C temperature range.
Can the 93LC66BT-I/MNY operate directly in both 3.3 V and 5 V systems without a level shifter?
Yes. The 93LC66BT supports a supply voltage range of 2.5 V to 5.5 V, so it interfaces directly with both 3.3 V microcontrollers and 5 V legacy systems without requiring an external level-shifting circuit, simplifying board design.
What organization mode does the 93LC66BT use and how does that affect firmware driver design?
The 93LC66BT-I/MNY is organized as 256 x 16-bit words when the ORG pin is tied high, giving 4 Kbit of storage accessed in 16-bit words over the 2 MHz Microwire bus with READ, WRITE, ERASE, and EWEN instructions.
Is the 93LC66BT-I/MNY suitable for automotive-grade supply chain qualification?
The -I/MNY variant covers the industrial temperature range of -40°C to +85°C in a lead-free, RoHS-compliant TDFN-8 package. For full AEC-Q100 automotive qualification, designers should evaluate the Microchip automotive-grade 93LC66C variants rated to 125°C.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.3700 | $37.00 |
| 1000+ | $0.3500 | $350.00 |
| 5000+ | $0.3400 | $1700.00 |
| 13200+ | $0.3298 | $4353.36 |
| 26400+ | $0.3281 | $8661.84 |
| 52800+ | $0.3264 | $17233.92 |
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