M93C56-RDW3TP/K STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics M93C56-RDW3TP/K is an automotive-grade 2 Kbit MICROWIRE serial EEPROM supporting 8-bit or 16-bit wide access modes with a 2 MHz maximum clock frequency, housed in an 8-pin SOIC package. It is AEC-Q100 qualified for use in demanding automotive environments. Available from stock worldwide with fast shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- M93C56-RDW3TP/K Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2574(MOQ 100)
- 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 MICROWIRE serial EEPROM with selectable 8-bit or 16-bit organization, offering flexible data width for diverse microcontroller interfaces
- AEC-Q100 automotive qualification ensuring reliability across extended temperature ranges and harsh in-vehicle environments
- 8-pin SOIC package with 2 MHz clock support, enabling fast serial access while occupying minimal PCB real estate in automotive ECU designs
Applications
The M93C56-RDW3TP/K is designed for automotive electronic control units (ECUs), instrument clusters, and body control modules that require compact non-volatile parameter storage compliant with automotive reliability standards. Its MICROWIRE serial interface simplifies integration with automotive microcontrollers, while the 2 Kbit density is ideal for storing calibration data, configuration tables, and odometer or trip counter values. The AEC-Q100 qualification and extended temperature operation make it a standard choice in powertrain, chassis, and ADAS subsystem designs.
Specifications
| Factory Lead Time | 14Weeks |
| YTEOL | 15 |
| Alternate Memory Width | 8 |
| Clock Frequency-Max (fCLK) | 2MHz |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| 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 Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Parallel/Serial | SERIAL |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Serial Bus Type | MICROWIRE |
| 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 | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Write Cycle Time-Max (tWC) | 4ms |
| 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 | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What memory density and organization options does M93C56-RDW3TP/K provide for automotive ECU parameter storage?
The M93C56-RDW3TP/K provides 2 Kbits (256 bytes) of EEPROM storage, selectable as either 128 words of 16 bits or 256 bytes of 8 bits via an ORG pin. This dual-width flexibility lets automotive engineers align the device with their microcontroller's native word size, reducing firmware complexity in ECU and body control module designs.
Which automotive qualification standard does M93C56-RDW3TP/K meet, and what operating temperature range does this imply?
The M93C56-RDW3TP/K is qualified to AEC-Q100 Grade 1, which specifies an operating temperature range of -40 °C to +125 °C. This makes it suitable for under-hood and in-cabin automotive applications where components must endure wide thermal excursions, vibration, and humidity over a vehicle's service life of 15 or more years.
How does the MICROWIRE interface of M93C56-RDW3TP/K compare to I2C or SPI for automotive microcontroller integration?
MICROWIRE is a 3-wire synchronous serial interface (CS, CLK, DI/DO) that operates at up to 2 MHz on the M93C56-RDW3TP/K. Compared to I2C, it eliminates the need for address arbitration, simplifying firmware. Compared to full SPI, it uses a single bidirectional data line, reducing pin count. Many legacy automotive MCU peripherals natively support MICROWIRE, making the M93C56 a direct drop-in for existing ECU platforms.
For a compact automotive sensor module PCB, how does the M93C56-RDW3TP/K 8-pin SOIC package help with board space constraints?
The 8-pin SOIC package of the M93C56-RDW3TP/K occupies a footprint of approximately 5 mm x 4 mm, which is well-suited for area-constrained automotive sensor modules and telematics units. The small outline allows routing of the 3-wire MICROWIRE bus with minimal trace length, reducing susceptibility to EMI in noisy 12 V automotive environments where signal integrity at 2 MHz clock rates must be maintained.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.5100 | $51.00 |
| 250+ | $0.3168 | $79.20 |
| 500+ | $0.2772 | $138.60 |
| 1000+ | $0.2574 | $257.40 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”