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The EM78P458APJ-G is a microcontroller manufactured by ELAN Microelectronics. Below are its specifications, descriptions, and features:

Specifications:

• Manufacturer: ELAN Microelectronics
• Core: 8-bit RISC
• Operating Voltage: 2.2V to 5.5V
• Clock Speed: Up to 8 MHz (external crystal)
• Program Memory (ROM): 4KB (OTP)
• RAM: 148 bytes
• EEPROM: 128 bytes
• I/O Pins: 18 (multiplexed with other functions)
• Timers: 2 (8-bit)
• Watchdog Timer: Yes
• ADC: 8-bit, 4 channels
• PWM: 1 channel (8-bit)
• Interrupt Sources: 6
• Packages: 18-pin DIP, SOP

Descriptions:

The EM78P458APJ-G is an 8-bit RISC-based microcontroller designed for low-power and cost-sensitive applications. It features OTP (One-Time Programmable) memory, making it suitable for mass production. The microcontroller includes built-in ADC, PWM, and EEPROM, making it ideal for applications such as home appliances, consumer electronics, and industrial control systems.

Features:

• Low Power Consumption: Supports sleep mode for power-saving applications.
• High Noise Immunity: Robust design for industrial environments.
• On-Chip Oscillator: Supports external crystal or RC oscillator.
• Multiple I/O Functions: GPIO, ADC, PWM, and interrupt capabilities.
• Wide Operating Voltage Range: 2.2V to 5.5V.
• Compact Package Options: 18-pin DIP and SOP for space-constrained designs.

This microcontroller is commonly used in embedded systems requiring simple control and monitoring functions.