93AA46B-I/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
The 93AA46B-I/MS is a 1 Kbit (64-word × 16-bit) serial EEPROM from Microchip with a 3-wire Microwire interface, 1 MHz clock, 200-year data retention, and 1 million write/erase cycle endurance, in an 8-pin MSOP package. It suits compact low-power embedded systems needing reliable non-volatile parameter storage.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93AA46B-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
What are the key features of 93AA46B-I/MS?
- 1 Kbit (64 × 16-bit) capacity with 1 MHz Microwire serial interface for simple 3-wire MCU connectivity
- 1 million write/erase cycle endurance ensuring long-life reliability in frequently updated configuration memories
- 200-year minimum data retention preserving stored parameters across the product lifetime without refresh
- Low-voltage 1.8 V to 5.5 V supply range compatible with modern low-power microcontrollers
- 8-pin MSOP package occupying under 10 mm² for space-constrained IoT and wearable designs
What is 93AA46B-I/MS used for?
The 93AA46B-I/MS is used in embedded systems requiring compact non-volatile storage of configuration parameters, calibration offsets, and serial number data that must persist through power loss. Its 3-wire Microwire interface suits microcontrollers with standard SPI peripherals in consumer electronics, smart meters, and industrial sensor nodes where only 1 Kbit of storage is needed. The 1 million cycle endurance and 200-year retention also make it suitable for motor drive configuration tables and medical device settings that are updated infrequently but must never be lost.
What are the specifications of 93AA46B-I/MS?
| 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 | 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 | 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 |
Where can I find the 93AA46B-I/MS datasheet?
93AA46B-I/MS Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for 93AA46B-I/MS?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much data can the 93AA46B-I/MS store, and in what word organization is its memory structured?
The 93AA46B-I/MS holds 1 Kbit of data organized as 64 words of 16 bits each, allowing up to 64 independent 16-bit configuration values to be stored and retrieved individually. This word organization suits applications like motor controller parameter tables or sensor calibration coefficient arrays where each entry is a 16-bit integer.
How many write cycles does the 93AA46B-I/MS support, and why does this matter for an industrial sensor node?
The 93AA46B-I/MS is rated for 1 million write/erase cycles per address location. In an industrial sensor node that updates calibration offsets once per hour, the device would last over 114 years before reaching that endurance limit, far exceeding the typical 10-year to 15-year product life without wear-leveling firmware.
What supply voltage range does the 93AA46B-I/MS support, and how does this help in a battery-powered IoT device?
The 93AA46B-I/MS operates from 1.8 V to 5.5 V, allowing it to function directly on a lithium coin cell at 3 V or on a single-cell Li-ion discharge curve from 4.2 V down to 2.7 V. This wide range eliminates the need for a voltage regulator dedicated to the EEPROM, reducing BOM cost and quiescent current in always-on IoT sensor nodes.
For a compact wearable design, what PCB footprint advantage does the MSOP-8 package of the 93AA46B-I/MS provide?
The 8-pin MSOP package measures approximately 3 mm × 3 mm with 0.65 mm lead pitch, occupying under 10 mm² of board area. Compared to an equivalent SOIC-8 package which occupies about 30 mm², the MSOP-8 saves roughly 20 mm², a meaningful reduction in wearable PCBs constrained to 15 mm × 20 mm or smaller form factors.
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About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
| 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 |
| 500+ | $0.2940 | $147.00 |
| 4400+ | $0.2849 | $1253.43 |
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