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UPD78C12AGQ from NEC

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UPD78C12AGQ

Manufacturer: NEC

8-BIT SINGLE-CHIP MICROCOMPUTER WITH A/D CONVERTER

Partnumber Manufacturer Quantity Availability
UPD78C12AGQ NEC 5 In Stock

Description and Introduction

8-BIT SINGLE-CHIP MICROCOMPUTER WITH A/D CONVERTER The **UPD78C12AGQ** is a microcontroller manufactured by **NEC (now Renesas Electronics)**. Below are its key specifications, descriptions, and features based on available factual information:  

### **Specifications:**  
- **Manufacturer:** NEC (Nippon Electric Company)  
- **Series:** 78K Series  
- **Architecture:** 8-bit  
- **CPU Core:** 78K/0 Series  
- **Clock Speed:** Up to **12 MHz**  
- **Program Memory (ROM):** **8 KB** (Mask ROM)  
- **RAM:** **256 bytes**  
- **I/O Ports:** Multiple general-purpose I/O pins  
- **Timers:** Built-in timers/counters (e.g., 8-bit timer, watchdog timer)  
- **Serial Interface:** UART (Asynchronous Serial Interface)  
- **ADC:** None (No built-in analog-to-digital converter)  
- **Operating Voltage:** **4.5V to 5.5V** (typical 5V operation)  
- **Package:** **QFP (Quad Flat Package)**  
- **Operating Temperature Range:** **-40°C to +85°C**  

### **Descriptions and Features:**  
1. **High-Speed Processing:** Capable of executing instructions at up to **12 MHz**, suitable for real-time control applications.  
2. **Low Power Consumption:** Optimized for power efficiency in embedded systems.  
3. **On-Chip Peripherals:** Includes timers, serial communication (UART), and interrupt control.  
4. **Mask ROM Variant:** The UPD78C12AGQ uses a factory-programmed **Mask ROM**, meaning the code is fixed during manufacturing.  
5. **Industrial-Grade Reliability:** Designed for industrial and automotive applications with a wide operating temperature range.  
6. **Compact Package:** The **QFP** package provides a space-efficient solution for PCB designs.  

This microcontroller was commonly used in **automotive, industrial control, and consumer electronics** applications where reliability and cost-efficiency were critical.  

(Note: Since NEC microcontrollers are now part of Renesas Electronics, further documentation may be found under Renesas' resources.)

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