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UPD78C11ACW from NEC

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UPD78C11ACW

Manufacturer: NEC

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

Partnumber Manufacturer Quantity Availability
UPD78C11ACW NEC 24 In Stock

Description and Introduction

8-BIT SINGLE-CHIP MICROCOMPUTER WITH A/D CONVERTER The UPD78C11ACW is a microcontroller manufactured by NEC (now part of Renesas Electronics). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** NEC (Nippon Electric Company)  
- **Series:** 78C11  
- **Architecture:** 8-bit  
- **CPU Core:** 78K/0 series  
- **Clock Speed:** Up to 12 MHz  
- **ROM (Program Memory):** 4 KB (Mask ROM)  
- **RAM (Data Memory):** 128 bytes  
- **I/O Ports:** 32 I/O lines (4 ports × 8 bits)  
- **Timers:**  
  - 16-bit timer/counter  
  - Watchdog timer  
- **Interrupts:** Multiple interrupt sources  
- **Serial Interface:** UART (Asynchronous Serial Communication)  
- **Operating Voltage:** 4.5V to 5.5V  
- **Package:** 40-pin DIP (Dual In-line Package)  
- **Operating Temperature Range:** Industrial (-40°C to +85°C)  

### **Descriptions:**  
The UPD78C11ACW is an 8-bit microcontroller from NEC’s 78K/0 series, designed for embedded control applications. It integrates a CPU core, ROM, RAM, timers, serial communication, and I/O ports in a single chip.  

### **Features:**  
- **High-Speed Processing:** 12 MHz operation for efficient performance.  
- **On-Chip Memory:** Includes 4 KB of mask ROM and 128 bytes of RAM.  
- **Versatile I/O:** 32 programmable I/O pins for interfacing with peripherals.  
- **Built-in UART:** Supports serial communication.  
- **Timer Functions:** Includes a 16-bit timer and watchdog timer for system reliability.  
- **Low Power Consumption:** Suitable for power-sensitive applications.  
- **Industrial-Grade:** Operates reliably in harsh environments (-40°C to +85°C).  

This microcontroller was commonly used in industrial control, consumer electronics, and automation systems.  

(Note: The UPD78C11ACW is an older model, and availability may be limited.)

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