64/32 KBIT SERIAL I2C BUS EEPROM The M24C32 is a 32-Kbit (4 Kbyte) serial I2C bus EEPROM manufactured by STMicroelectronics (STM). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Memory Size:** 32 Kbit (4 Kbyte) organized as 4096 × 8 bits.
- **Interface:** I2C-compatible (2-wire) serial interface.
- **Operating Voltage:**
- **M24C32-W:** 2.5V to 5.5V
- **M24C32-R:** 1.8V to 5.5V
- **M24C32-F:** 1.7V to 5.5V
- **Write Cycle Time:** 5 ms (maximum).
- **Clock Frequency:** Up to 1 MHz (I2C Fast Mode Plus).
- **Endurance:** 4 million write cycles per byte.
- **Data Retention:** 40 years.
- **Operating Temperature Range:**
- Industrial: -40°C to +85°C
- Automotive: -40°C to +125°C (specific versions).
### **Descriptions:**
- The M24C32 is a non-volatile memory device that supports byte and page write operations (up to 32 bytes per page).
- It includes a write control input (WC) for hardware data protection.
- The device operates with a bidirectional I2C protocol and supports random and sequential read modes.
- It has three address pins (A0, A1, A2) for device addressing, allowing up to eight devices on the same bus.
### **Features:**
- **I2C-Compatible Interface:** Supports standard (100 kHz) and fast (400 kHz) modes, as well as Fast Mode Plus (1 MHz).
- **Hardware Write Protection:** WC pin allows blocking of write operations.
- **Low Power Consumption:**
- Standby current: < 5 µA (typical).
- Read current: < 1 mA (at 1 MHz).
- **Page Write Buffer:** Allows writing up to 32 bytes in a single operation.
- **Extended Temperature Range:** Available for industrial and automotive applications.
- **Packages:** Available in SO8, TSSOP8, UFDFPN8, and WLCSP8 packages.
This information is based solely on the manufacturer's datasheet for the M24C32 EEPROM from STMicroelectronics.
