The **M24C64-RMB3TPP** is a specific variant of the M24C64 family, which is a 64-Kbit serial I2C bus EEPROM (Electrically Erasable Programmable Memory) manufactured by STMicroelectronics. Below is a detailed breakdown of its electronic characteristics and technical specifications. --- ## 1. Core Technical Specifications The device is organized as 8192 x 8 bits (64 Kbits) and operates on the I2C standard protocol. | Feature | Specification | | :--- | :--- | | **Memory Size** | 64 Kbit (8 Kbytes) | | **Interface** | I2C (Serial 2-Wire) | | **Clock Frequency** | 1 MHz (Fast Mode Plus), 400 kHz, 100 kHz | | **Supply Voltage (Vcc)** | 1.8V to 5.5V | | **Operating Temperature** | -40°C to +125°C | | **Page Size** | 32 Bytes | | **Write Cycle Time** | 5 ms (Maximum) | --- ## 2. Key Electronic Features * **Byte and Page Write:** Supports writing a single byte or a full page of 32 bytes in one cycle. * **Random and Sequential Read:** Allows reading data from a specific address or continuous reading across the entire memory map. * **Write Protect (WC):** A hardware pin that allows the user to write-protect the entire memory array when connected to $V_{CC}$. * **High Reliability:** * **Endurance:** 4 million write cycles. * **Data Retention:** 200 years. * **ESD Protection:** Over 4000V (Human Body Model). --- ## 3. Deciphering the Part Number (M24C64-RMB3TPP) The suffix provides critical information about the packaging and specific performance grade: | Code Segment | Meaning | | :--- | :--- | | **M24** | I2C Serial Interface EEPROM | | **C64** | 64 Kbit Density | | **-R** | Voltage Range: 1.8V to 5.5V | | **MB** | Package: **UFDFPN8** (Ultra-thin Fine pitch Dual Flat No-lead, 2x3 mm) | | **3** | Temperature Range: -40°C to +125°C (Automotive Grade 1 or High-Rel Industrial) | | **TP** | Packing: Tape & Reel | | **P** | Ecological Status: RoHS compliant and Antimony/Chlorine Free | --- ## 4. Typical Application Circuit The device requires two pull-up resistors on the SDA (Data) and SCL (Clock) lines to function correctly within the I2C bus. ```cpp // Example: Basic connection pins // Pin 1-3: E0, E1, E2 (Address Inputs) -> Grounded for Address 0x50 // Pin 4: VSS (Ground) // Pin 5: SDA (Serial Data) -> Microcontroller I2C Data // Pin 6: SCL (Serial Clock) -> Microcontroller I2C Clock // Pin 7: WC (Write Control) -> Ground for Write Enable // Pin 8: VCC (Supply) -> 1.8V to 5.5V ```