93AA56A-I/SN Microchip Integrated Circuit (Other) In Stock
93AA56A-I/SN is a 2 Kbit (128 x 16-bit) Microwire serial EEPROM by Microchip operating from 1.8 V to 5.5 V with up to 1 MHz clock speed. Endures 1,000,000 write/erase cycles with 200-year data retention in SOIC-8 package. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93AA56A-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2100(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
- 2 Kbit (128 x 16) Microwire EEPROM with 1 MHz clock speed and 1,000,000 write/erase cycle endurance for frequent parameter updates
- Wide 1.8 V to 5.5 V supply range allowing direct connection to both 1.8 V low-power microcontrollers and legacy 5 V embedded systems
- SOIC-8 package with 200-year minimum data retention and RoHS-compliant (e3) construction for industrial and consumer storage applications
Applications
93AA56A-I/SN is used in embedded systems requiring small non-volatile storage for calibration constants, device serial numbers, configuration parameters, and trim values accessed over a simple 3-wire Microwire SPI-compatible interface. Its 1.8 V minimum operating voltage makes it compatible with ultra-low-power sensor nodes, wearables, and metering equipment where system standby voltage is kept low to maximize battery life. The 1,000,000-cycle endurance suits logging applications such as power meter event counters and thermostat schedule records that update stored values thousands of times annually.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 12Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 1MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 2048bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 256words |
| Number of Words Code | 256 |
| Operating Mode | SYNCHRONOUS |
| Organization | 256X8 |
| 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) | 1.8V |
| 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 |
| Toggle Bit | YES |
| Write Cycle Time-Max (tWC) | 6ms |
| Write Protection | SOFTWARE |
| Package | Other |
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 organization and interface speed of 93AA56A-I/SN?
93AA56A-I/SN is organized as 128 words of 16 bits each (2048 bits total), accessed over the Microwire serial interface at up to 1 MHz clock frequency. The 16-bit word organization is well suited for storing sensor calibration coefficients or configuration register images that naturally fit a 16-bit data width, reducing the number of read/write cycles compared to byte-wide alternatives.
How does 93AA56A-I/SN perform in low-voltage battery-powered designs compared to 5 V-only EEPROM alternatives?
93AA56A-I/SN operates from 1.8 V to 5.5 V supply voltage, whereas earlier Microwire EEPROMs such as 93C56 typically require 4.5 V to 5.5 V. This wide range allows direct operation from a LiPo battery near 1.8 V end-of-discharge or a 1.8 V LDO regulator in ultra-low-power IoT nodes without a boost converter, saving up to 200 µA of quiescent current that a boost circuit would otherwise consume.
How does the 1,000,000-cycle endurance of 93AA56A-I/SN affect its suitability for real-time data logging applications?
With 1,000,000 write/erase cycles rated endurance per address location, 93AA56A-I/SN supports writing a given memory location approximately 1,000,000 times before wear-out. For a data logger updating a 16-bit record every 30 seconds, this translates to roughly 30 million seconds, or nearly 1 year, of continuous writes per location before exhaustion — adequate for many industrial logging cycles when wear-leveling across multiple addresses is applied.
Which Microchip microcontroller families can directly interface with 93AA56A-I/SN using built-in SPI or Microwire peripherals?
PIC16, PIC18, PIC32, and dsPIC30 families include SPI peripherals configurable for Microwire-compatible mode (SPI Mode 0, 0), allowing 93AA56A-I/SN read and write operations without bit-banging. At 1 MHz clock, a 16-bit read completes in 16 µs, well within the DMA transfer window of most PIC SPI modules. The SOIC-8 footprint also matches standard Microchip development board EEPROM socket footprints, speeding prototype validation.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3300 | $0.33 |
| 25+ | $0.3220 | $8.05 |
| 100+ | $0.2775 | $27.75 |
| 250+ | $0.2400 | $60.00 |
| 500+ | $0.2100 | $105.00 |
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