93LC56A-I/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip 93LC56A-I/MS is a 2 Kbit (256 × 8 or 128 × 16) 3-wire SPI-compatible serial EEPROM with 2 MHz clock and 1 million write cycle endurance in MSOP-8 package. It stores non-volatile configuration data reliably. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93LC56A-I/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3000(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 serial EEPROM with 3-wire Microwire-compatible SPI interface at up to 2 MHz, offering simple non-volatile storage integration with minimal GPIO lines
- 1 million write/erase cycle endurance and 200-year minimum data retention ensuring reliable long-life calibration and configuration storage in industrial products
- Configurable 8-bit or 16-bit organization via ORG pin, providing flexible word-width selection to match host microcontroller data bus width in a compact MSOP-8 package
Applications
The 93LC56A-I/MS is used for storing calibration coefficients, serial numbers, and configuration parameters in microcontroller-based systems such as sensor modules, smart meters, and consumer electronics products requiring 2 Kbit of non-volatile memory accessible over a 3-wire SPI-compatible interface at up to 2 MHz. Its selectable 8-bit or 16-bit word organization via the ORG pin allows designers to match the EEPROM data width to the host MCU's SPI word length without firmware changes. The MSOP-8 package makes it a compact fit for space-constrained PCB designs where through-hole DIP EEPROMs cannot be used.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 12Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 2MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | S-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 | 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) | 2.5V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| 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 density and word organization options of the 93LC56A-I/MS EEPROM?
The 93LC56A-I/MS provides 2 Kbits of EEPROM, configurable as 256 × 8-bit words or 128 × 16-bit words by setting the ORG pin, allowing the host microcontroller to access data in either byte-wide or word-wide format over the 3-wire Microwire interface.
What is the maximum clock frequency and interface type supported by 93LC56A-I/MS?
The device operates with a 3-wire Microwire-compatible serial interface at clock frequencies up to 2 MHz, enabling fast EEPROM access from microcontrollers with SPI peripherals while keeping interface signal count to just 3 lines: CS, SCK, and DI/DO.
How many write cycles can 93LC56A-I/MS endure, and what data retention does it guarantee?
Microchip specifies 1 million write/erase cycles per address location and a minimum 200-year data retention at 25°C, making the 93LC56A-I/MS suitable for frequently updated counters, odometers, or event logs in products with multi-decade service lifetimes.
For a compact industrial sensor, why choose 93LC56A-I/MS in MSOP-8 over a 24-series I2C EEPROM?
The 93LC56A-I/MS 3-wire Microwire interface requires no pull-up resistors on the clock and data lines that I2C demands, and it does not share a bus address space — simplifying PCB routing. Its MSOP-8 footprint (3 mm × 3 mm) is also smaller than the SOIC-8 packages typically used for 24-series EEPROMs, saving roughly 30% board area in a compact sensor node design.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4000 | $0.40 |
| 10+ | $0.3940 | $3.94 |
| 100+ | $0.3500 | $35.00 |
| 1000+ | $0.3400 | $340.00 |
| 4000+ | $0.3086 | $1234.44 |
| 5000+ | $0.3000 | $1500.00 |
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