93AA46A-I/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip 93AA46A-I/MS is a 1 Kbit (128 x 8-bit) serial EEPROM with SPI-compatible interface in an 8-pin MSOP package, rated for industrial temperature operation. Key specs: 1 MHz clock, 1 million write/erase cycles, 200-year data retention. Available from stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93AA46A-I/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2849(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 million write/erase cycle endurance enables long-service-life embedded logging and configuration storage in industrial equipment
- 200-year minimum data retention ensures non-volatile configuration data survives power-down events across the full product lifetime
- 8-pin MSOP package with SPI-compatible interface minimizes PCB footprint for memory-constrained embedded system designs
Applications
The 93AA46A-I/MS is well suited for storing calibration data, device configuration, and manufacturing parameters in industrial sensors, smart meters, and embedded controllers where small non-volatile memory is needed alongside a microcontroller. Its SPI-compatible serial interface simplifies firmware integration with popular 8-bit and 32-bit microcontrollers, and the industrial temperature rating supports deployment in outdoor equipment and factory floor automation nodes. Consumer appliances and IoT edge nodes also use this device to retain user settings and device identity information across power cycles.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 11Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 1MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 1024bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 128words |
| Number of Words Code | 128 |
| Operating Mode | SYNCHRONOUS |
| Organization | 128X8 |
| 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 |
| 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 93AA46A-I/MS:
Frequently Asked Questions
How many bytes can the 93AA46A-I/MS store, and how is the memory organized?
The 93AA46A-I/MS provides 1 Kbit of total memory organized as 128 bytes (128 x 8-bit words), selectable as 8-bit wide via the ORG pin. This capacity is sufficient for storing device serial numbers, factory calibration coefficients, trim registers, or small configuration tables in microcontroller-based embedded systems with minimal firmware overhead.
What endurance and data retention does 93AA46A-I/MS offer for industrial data logging applications?
The 93AA46A-I/MS is rated for 1,000,000 write/erase cycles per memory location, enabling high-frequency parameter updates throughout the product lifetime without risk of cell wear-out. Data retention is specified at a minimum of 200 years under standard storage conditions, ensuring configuration and calibration data persists reliably even during extended equipment storage periods.
How does the MSOP-8 package of 93AA46A-I/MS compare in board footprint to the DIP-8 variant?
The 93AA46A-I/MS in its 8-pin MSOP package measures approximately 3.0 mm x 3.0 mm with a 0.65 mm pin pitch, which is significantly smaller than the through-hole 8-pin DIP package at 9.8 mm x 6.7 mm. For PCB space-constrained industrial sensor nodes and compact IoT modules, the MSOP-8 reduces the memory footprint by approximately 90% in board area compared to the DIP alternative.
What clock frequency does 93AA46A-I/MS support, and is it compatible with standard microcontroller SPI peripherals?
The 93AA46A-I/MS supports a maximum SPI clock frequency of 1 MHz at the supply voltage range, which is directly compatible with the hardware SPI peripherals of popular microcontrollers including PIC, AVR, and ARM Cortex-M devices that can operate at 1 MHz SPI mode. The Microwire-compatible protocol also supports bit-bang software SPI implementations on any GPIO pair.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3800 | $0.38 |
| 10+ | $0.3720 | $3.72 |
| 25+ | $0.3700 | $9.25 |
| 100+ | $0.3300 | $33.00 |
| 1000+ | $0.3000 | $300.00 |
| 4400+ | $0.2849 | $1253.43 |
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