93C56C-E/STG Microchip Integrated Circuit (Small Outline Packages) In Stock
93C56C-E/STG is a 2-Kbit low-voltage serial EEPROM with a 3-wire SPI-compatible interface operating at up to 3 MHz in an 8-pin TSSOP package. It supports 1,000,000 write/erase cycles and 200-year data retention for reliable non-volatile storage. Available in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93C56C-E/STG Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2-Kbit serial EEPROM with 3 MHz max clock speed and 3-wire SPI-compatible interface for simple microcontroller integration
- 1,000,000 write/erase cycle endurance with 200-year minimum data retention for long-life non-volatile configuration storage
- 8-bit or 16-bit selectable memory organization in a compact 8-lead TSSOP package for space-constrained PCB designs
Applications
93C56C-E/STG is suited for storing non-volatile configuration parameters, calibration data, and device identifiers in consumer electronics, industrial controllers, and automotive modules where a small serial EEPROM is needed. Its 2-Kbit capacity and 3-wire interface allow microcontrollers to read and write settings such as network addresses, sensor trim values, and feature flags without a larger Flash or FRAM device. The 8-pin TSSOP footprint minimizes board area in compact designs such as smart meters, remote controls, and IoT edge nodes.
Specifications
| Pbfree Code | Yes |
| YTEOL | 5 |
| Alternate Memory Width | 8 |
| Clock Frequency-Max (fCLK) | 3MHz |
| 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 | 16 |
| Number of Functions | 1 |
| Number of Words | 128words |
| Number of Words Code | 128 |
| Operating Mode | SYNCHRONOUS |
| Organization | 128X16 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Parallel/Serial | SERIAL |
| Qualification Status | Not Qualified |
| Serial Bus Type | MICROWIRE |
| Standby Current-Max | 0.000005A |
| Supply Current-Max | 0.002mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 2ms |
| 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
How many write cycles does 93C56C-E/STG support and how does this affect longevity in data-logging applications?
93C56C-E/STG supports 1,000,000 write/erase cycles per byte location, which at one write per minute equates to nearly 2 years of continuous cycling before wear-out. For typical configuration storage where writes occur only during setup or calibration — perhaps a few hundred writes per year — the device would last over 1,000 years in practical use, far exceeding product lifetimes.
What interface speed does 93C56C-E/STG support and how does it connect to a microcontroller?
93C56C-E/STG operates with a 3-wire SPI-compatible serial interface at up to 3 MHz clock frequency, requiring only CS, CLK, and DI/DO signals from a microcontroller GPIO or dedicated SPI peripheral. This low pin count eliminates the need for a parallel bus interface, reducing I/O consumption and simplifying PCB routing for embedded designs with limited GPIO.
How does 93C56C-E/STG compare to an I2C EEPROM for automotive calibration data storage?
Unlike I2C EEPROMs that require address pins to distinguish multiple devices, 93C56C-E/STG uses a single chip-select line for device addressing on the SPI bus, making it simpler to gang multiple devices on one bus. For automotive calibration storage where data is written at end-of-line and read during operation, the 2-Kbit capacity and 200-year data retention ensure calibration data survives the 15-year vehicle lifetime with wide margin.
Can 93C56C-E/STG store both 8-bit and 16-bit wide data words and why does this matter?
Yes, 93C56C-E/STG supports selectable 8-bit or 16-bit memory organization via the ORG pin, allowing 256 x 8-bit or 128 x 16-bit access modes. The 16-bit mode is useful when storing 16-bit calibration coefficients or configuration words in a single read/write transaction, halving the number of SPI operations needed and reducing firmware complexity in word-oriented microcontroller architectures.
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