## M93C46-RBN6P: Electronic Specifications and Overview The **M93C46-RBN6P** is a specific variant of the 93C46 family, which is a 1-Kbit serial MICROWIRE EEPROM (Electrically Erasable Programmable Read-Only Memory). It is widely used for storing configuration data, parameters, and lookup tables in embedded systems. --- ### 1. Key Technical Specifications Below are the primary electrical and physical characteristics of this specific part number: | Parameter | Specification | | :--- | :--- | | **Memory Size** | 1 Kbit (1,024 bits) | | **Organization** | Configurable: 64 x 16-bit or 128 x 8-bit | | **Interface** | MICROWIRE (3-wire serial) | | **Supply Voltage ($V_{CC}$)** | 1.8V to 5.5V | | **Clock Frequency** | 2 MHz (at 5V) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Package Type** | PDIP8 (Plastic Dual In-line Package, 8 pins) | | **Data Retention** | > 40 Years | | **Endurance** | > 1 Million Write Cycles | --- ### 2. Pin Configuration (PDIP8) The device follows a standard 8-pin layout for serial EEPROMs: | Pin Number | Name | Function | | :--- | :--- | :--- | | 1 | **S** | Chip Select (Active High) | | 2 | **C** | Serial Clock | | 3 | **D** | Serial Data Input | | 4 | **Q** | Serial Data Output | | 5 | **Vss** | Ground | | 6 | **ORG** | Organization Select (High for x16, Low/GND for x8) | | 7 | **DU** | Don't Use (Must be connected to Vss or left open) | | 8 | **Vcc** | Supply Voltage | --- ### 3. Part Number Breakdown Understanding the suffix **-RBN6P**: * **M93C46**: Base part number for the 1-Kbit MICROWIRE EEPROM. * **-R**: Indicates a specific voltage range (1.8V to 5.5V). * **BN**: Refers to the **PDIP8** package (Plastic Dual In-line). * **6**: Temperature Range 6 (-40°C to 85°C). * **P**: Lead-free and RoHS compliant. --- ### 4. Functional Features * **Self-Timed Programming:** The device handles the internal write cycle timing automatically, so the MCU doesn't need to track it manually. * **Sequential Read:** Data can be read out continuously by holding the chip select high and continuing to pulse the clock. * **Software Write Protection:** Commands like `WEN` (Write Enable) and `WDS` (Write Disable) protect against accidental data corruption during power-up or power-down.