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M93S66-WMN6T from ST,ST Microelectronics

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M93S66-WMN6T

Manufacturer: ST

4Kbit, 2Kbit and 1Kbit (16-bit wide) MICROWIRE Serial Access EEPROM with Block Protection

Partnumber Manufacturer Quantity Availability
M93S66-WMN6T,M93S66WMN6T ST 258000 In Stock

Description and Introduction

4Kbit, 2Kbit and 1Kbit (16-bit wide) MICROWIRE Serial Access EEPROM with Block Protection The M93S66-WMN6T is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Manufacturer:**  
STMicroelectronics  

### **Part Number:**  
M93S66-WMN6T  

### **Description:**  
The M93S66-WMN6T is a 4-Kbit (512 x 8 or 256 x 16) serial EEPROM with a wide voltage range and SPI-compatible interface. It is designed for low-power and high-reliability applications.  

### **Key Features:**  
- **Memory Size:** 4 Kbit (512 bytes)  
- **Interface:** SPI (Serial Peripheral Interface)  
- **Operating Voltage:** 1.8V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Write Endurance:** 4 million cycles  
- **Data Retention:** 200 years  
- **Organization:** 512 x 8 bits or 256 x 16 bits  
- **Page Write Buffer:** 32 bytes  
- **Write Protect Feature:** Hardware and software protection  
- **Package:** SO8 (8-pin Small Outline Package)  

### **Additional Specifications:**  
- **Clock Frequency:** Up to 5 MHz  
- **Standby Current:** Low power consumption (typ. 1 µA)  
- **ESD Protection:** ≥ 4 kV (HBM)  

This device is commonly used in industrial, automotive, and consumer electronics applications requiring reliable non-volatile memory storage.  

(Note: Always refer to the latest datasheet from STMicroelectronics for the most accurate and updated information.)

Application Scenarios & Design Considerations

4Kbit, 2Kbit and 1Kbit (16-bit wide) MICROWIRE Serial Access EEPROM with Block Protection

Alternative Part Number

  • AT93C66A-10SU-2.7 --: Pin-compatible 4Kbit Microwire serial EEPROM with similar organization and voltage range, widely available and a common drop-in replacement.
  • CAT93C66VI-GT3 --: 4Kbit Microwire EEPROM with compatible pinout and command set, suitable substitute for the M93S66 in most designs.
  • BR93L66RF-WE2 --: 4Kbit 3-wire serial EEPROM offering equivalent functionality and similar operating voltage, usable as an alternative with minor design review.

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