93AA66C-I/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
The 93AA66C-I/MS is a 4Kbit (512x8 or 256x16) EEPROM with SPI interface in a compact MSOP-8 package. It offers 1,000,000 write/erase cycles, 200-year data retention, and up to 3 MHz clock. Available from stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93AA66C-I/MS 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
- Configurable memory organization as 512x8 or 256x16 bits providing flexible data width for diverse microcontroller architectures
- 1,000,000 write/erase cycle endurance combined with 200-year minimum data retention ensuring long-term reliability
- 3 MHz SPI-compatible interface in ultra-compact MSOP-8 package enabling high-density PCB designs
Applications
The 93AA66C-I/MS is ideal for storing configuration data, calibration constants, and user preferences in embedded systems where non-volatile retention is critical. Its dual-width flexibility suits both 8-bit and 16-bit microcontroller environments found in industrial sensors, smart meters, and consumer electronics. The MSOP-8 package enables space-efficient placement on dense PCBs in wearables and IoT edge devices.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 23Weeks |
| YTEOL | 8 |
| Additional Feature | ALSO CONFIGURABLE AS 512 X 8 |
| Alternate Memory Width | 8 |
| Clock Frequency-Max (fCLK) | 3MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 4096bit |
| Memory IC Type | EEPROM |
| Memory Width | 16 |
| Number of Functions | 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 | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN 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) | 1.8V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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 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
What is the memory capacity and organization of the 93AA66C-I/MS?
The 93AA66C-I/MS provides 4Kbits of EEPROM storage configurable as 512 words x 8 bits or 256 words x 16 bits. This dual-mode organization allows seamless use with both 8-bit and 16-bit microcontrollers without additional logic, making it highly versatile for embedded system designs.
What is the endurance and data retention specification for the 93AA66C-I/MS?
The 93AA66C-I/MS is rated for a minimum of 1,000,000 write/erase cycles per memory location, ensuring reliability across high-frequency update applications. Data retention is specified at a minimum of 200 years, making it suitable for archival storage and long-life industrial equipment.
What package does the 93AA66C-I/MS use?
The 93AA66C-I/MS is housed in an MSOP-8 (Mini Small Outline Package, 8-pin) surface mount package, designated by the JESD-30 code S-PDSO-G8. This compact package is approximately 30% smaller than standard SOIC-8, enabling high-density PCB layouts in space-constrained applications.
What alternatives exist to the 93AA66C-I/MS?
Direct alternatives include the 93LC66 (3.3V CMOS version) and 93C66 (3V or 5V selection), all from Microchip in MSOP-8. For I2C-based alternatives with similar capacity, the 24AA32 (4Kbyte I2C EEPROM) is compatible. Atmel's AT93C66 is a pin-compatible substitute with identical capacity and interface.
Is the 93AA66C-I/MS RoHS compliant and what is its operating temperature range?
Yes, the 93AA66C-I/MS carries Pbfree Code 'Yes', confirming it is lead-free and RoHS compliant. The -I suffix indicates an industrial temperature range of -40°C to +85°C, making it suitable for automotive-adjacent and industrial applications requiring extended environmental performance.
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