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UPD78F9801 from NEC

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UPD78F9801

Manufacturer: NEC

USB keyboard 8-bit single-chip microcomputer

Partnumber Manufacturer Quantity Availability
UPD78F9801 NEC 1858 In Stock

Description and Introduction

USB keyboard 8-bit single-chip microcomputer The UPD78F9801 is a microcontroller manufactured by NEC (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on available data:  

### **Specifications:**  
- **Architecture:** 8-bit  
- **Core:** 78K0R  
- **Clock Speed:** Up to 20 MHz  
- **Flash Memory:** 32 KB  
- **RAM:** 1 KB  
- **Data Flash:** 4 KB (for data storage)  
- **Operating Voltage:** 2.7 V to 5.5 V  
- **Package:** LQFP-64  

### **Features:**  
- **High-Speed Operation:** Capable of executing instructions in 2 clocks per cycle.  
- **Low Power Consumption:** Supports multiple power-saving modes (HALT, STOP).  
- **On-Chip Peripherals:**  
  - 10-bit A/D Converter (8 channels)  
  - 8-bit D/A Converter (2 channels)  
  - Timers (16-bit timer × 4, watchdog timer)  
  - Serial Interfaces (UART, CSI, I²C)  
  - PWM Output  
- **High Noise Immunity:** Robust against electrical noise in industrial environments.  
- **Development Support:** Compatible with NEC’s development tools (e.g., PM+, IEBus).  

### **Applications:**  
- Industrial control systems  
- Consumer electronics  
- Automotive applications  
- Home appliances  

This microcontroller is designed for embedded systems requiring reliability, low power, and real-time performance.  

(Note: For the latest datasheets or updates, refer to Renesas Electronics' official documentation.)

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