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ST24LC21B

1KB (X8) DUAL MODE SERIAL EEPROM FOR VESA PLUG & PLAY

Partnumber Manufacturer Quantity Availability
ST24LC21B 30 In Stock

Description and Introduction

1KB (X8) DUAL MODE SERIAL EEPROM FOR VESA PLUG & PLAY The ST24LC21B is a 1-Kbit (128 x 8) serial Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by STMicroelectronics.  

### **Key Specifications:**  
- **Memory Size:** 1 Kbit (128 bytes)  
- **Interface:** I²C (Inter-Integrated Circuit) compatible  
- **Operating Voltage:** 1.8V to 5.5V  
- **Write Cycle Endurance:** 1,000,000 cycles  
- **Data Retention:** 40 years  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** SO8, TSSOP8, UFDFPN8  

### **Features:**  
- **Low Power Consumption:**  
  - Standby current: 1 µA (max)  
  - Read current: 1 mA (max)  
  - Write current: 3 mA (max)  
- **Page Write Mode:** Up to 16 bytes per write cycle  
- **Hardware Write Protection:** WP pin for memory protection  
- **Sequential Read Function:** Allows fast data read operations  
- **AEC-Q100 Qualified:** Suitable for automotive applications  

### **Applications:**  
- Automotive systems  
- Industrial controls  
- Consumer electronics  
- Smart meters  
- Medical devices  

The ST24LC21B is designed for reliable non-volatile data storage with low power consumption and high endurance.

Application Scenarios & Design Considerations

1KB (X8) DUAL MODE SERIAL EEPROM FOR VESA PLUG & PLAY
Partnumber Manufacturer Quantity Availability
ST24LC21B STMicroelectronics 725 In Stock

Description and Introduction

1KB (X8) DUAL MODE SERIAL EEPROM FOR VESA PLUG & PLAY The **ST24LC21B** is a serial EEPROM manufactured by **STMicroelectronics**. Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Memory Size:** 2 Kbit (256 x 8 bits)  
- **Interface:** I²C (Two-wire serial interface)  
- **Supply Voltage (VCC):** 1.8V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Write Cycle Time:** 5 ms (max)  
- **Write Endurance:** 1 million cycles  
- **Data Retention:** 40 years  
- **Package Options:** SO8, TSSOP8  

### **Descriptions:**
- The **ST24LC21B** is a low-voltage, low-power EEPROM with I²C-compatible serial communication.  
- It supports byte and page write operations (up to 16 bytes per page).  
- Features a built-in write-protect function via the **WP (Write Protect)** pin.  

### **Features:**
- **Low Power Consumption:**  
  - Standby current: 1 µA (typical)  
  - Active current: 1 mA (typical at 100 kHz)  
- **I²C-Compatible Interface:**  
  - Supports standard (100 kHz) and fast (400 kHz) modes.  
- **Hardware Write Protection:**  
  - Prevents accidental writes when **WP** pin is connected to **VCC**.  
- **Extended Voltage Range:**  
  - Operates from **1.8V to 5.5V**, making it suitable for battery-powered applications.  
- **High Reliability:**  
  - Built-in error-checking and correction mechanisms.  

This information is strictly based on the manufacturer's datasheet for the **ST24LC21B** from **STMicroelectronics**.

Application Scenarios & Design Considerations

1KB (X8) DUAL MODE SERIAL EEPROM FOR VESA PLUG & PLAY

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