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LM12L458CIV from NSC,National Semiconductor

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LM12L458CIV

Manufacturer: NSC

12-Bit Plus Sign Data Acquisition System with Self-Calibration

Partnumber Manufacturer Quantity Availability
LM12L458CIV NSC 30 In Stock

Description and Introduction

12-Bit Plus Sign Data Acquisition System with Self-Calibration The LM12L458CIV is a microcontroller manufactured by National Semiconductor (NSC). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** National Semiconductor (NSC)  
- **Part Number:** LM12L458CIV  
- **Core:** 8-bit microcontroller  
- **Architecture:** MCS-51 compatible  
- **Clock Speed:** Up to 12 MHz  
- **Program Memory (ROM):** 8 KB  
- **RAM:** 256 bytes  
- **EEPROM:** 2 KB  
- **Timers:** Two 16-bit timers/counters  
- **I/O Ports:** 32 programmable I/O lines  
- **ADC:** 8-channel, 8-bit resolution  
- **Communication Interfaces:** UART, SPI, I²C  
- **Operating Voltage:** 4.5V to 5.5V  
- **Package:** PLCC (Plastic Leaded Chip Carrier)  

### **Descriptions:**  
The LM12L458CIV is an 8-bit microcontroller based on the MCS-51 architecture, designed for embedded control applications. It integrates ROM, RAM, EEPROM, ADC, and multiple communication interfaces, making it suitable for industrial and consumer electronics.  

### **Features:**  
- **MCS-51 instruction set compatible**  
- **On-chip 8 KB ROM for program storage**  
- **256 bytes of internal RAM**  
- **2 KB of EEPROM for data storage**  
- **8-bit, 8-channel ADC**  
- **Two 16-bit timer/counters**  
- **Serial communication (UART, SPI, I²C)**  
- **32 programmable I/O pins**  
- **Low-power idle and power-down modes**  
- **Industrial temperature range support**  

This information is based on the manufacturer's datasheet. For detailed technical specifications, refer to the official NSC documentation.

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