CMOS DOT MATRIX LCD CONTROLLER DRIVER The SED1278F0B is a dot matrix LCD controller/driver manufactured by EPSON. Below are its specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Display Type:** Dot Matrix LCD Controller/Driver
- **Interface:** Parallel (8-bit or 4-bit)
- **Supply Voltage (VDD):** 4.5V to 5.5V
- **Logic Voltage (VDD - VSS):** 4.5V to 5.5V
- **Driver Output Voltage (V0 - VSS):** 7V to 14V
- **Operating Temperature Range:** -20°C to +70°C
- **Storage Temperature Range:** -30°C to +80°C
- **Package Type:** 80-pin QFP (Quad Flat Package)
### **Descriptions:**
- The SED1278F0B is designed to control dot matrix LCD panels, supporting both character and graphic display modes.
- It includes an on-chip display RAM (DDRAM) for storing display data and an on-chip character generator ROM (CGROM) for predefined characters.
- The controller supports a built-in oscillator, reducing the need for external clock components.
### **Features:**
- **Display Modes:**
- Character display (supports standard ASCII and custom characters)
- Graphic display (bit-mapped)
- **Built-in Memory:**
- Display RAM (DDRAM): 80 x 8 bits (expandable)
- Character Generator ROM (CGROM): 208 types (5x8 dots)
- Character Generator RAM (CGRAM): 8 patterns (5x8 dots)
- **Control Functions:**
- Display ON/OFF control
- Cursor ON/OFF and blink control
- Auto-increment/decrement of address counter
- Read/Write operations for display data and instructions
- **Low Power Consumption:** Suitable for battery-operated devices.
- **Wide Voltage Range:** Supports multiple LCD driving voltages.
This information is strictly based on the manufacturer's datasheet and technical documentation.
