W79L659A25FL

Microcontrollers Overview

The W79L659A25FL is an 8-bit microcontroller based on the 4T 8051 core, manufactured by Nuvoton Technology Corporation. It features 32 KB of Flash program memory and 256+1 KB of SRAM. The device supports a maximum clock frequency of 25 MHz with a supply voltage range of 3.0V to 4.5V. It includes an 8-channel 10-bit ADC, six 8-bit PWM channels, two I²C interfaces, one UART, and JTAG support. The component is housed in a QFP-100 package and operates within a temperature range of 0°C to +70°C.

Microcontrollers Feature Summary

• Integrates an 8-channel 10-bit analog-to-digital converter for signal acquisition.
• Supports In-System Programming (ISP) and Online Debugging via JTAG interface.
• Provides multiple communication peripherals including dual I²C and UART modules.

Microcontrollers Applications

• Access control systems
• Alarm devices
• LCD televisions
• Human-machine interfaces
• Industrial control machines

Microcontrollers Procurement Notes

Verify current availability status directly with the manufacturer or authorized distributors, as lifecycle information may vary. Confirm RoHS compliance details prior to integration. Ensure that the QFP-100 package dimensions align with your PCB layout requirements. Check for any specific ordering suffixes that might affect packaging or testing conditions.

Microcontrollers Selection Notes

Select this component when a standard 8051 architecture with integrated ADC and ISP capabilities is required. It is suitable for applications needing moderate processing speed up to 25 MHz. Consider the 3.0V to 4.5V operating voltage range against your system power design. The QFP-100 package offers ample I/O lines for complex peripheral connections.

Microcontrollers Part Context

This part belongs to the W79L659A series of 8-bit microcontrollers from Nuvoton. The series is designed for general-purpose embedded applications requiring reliable performance and ease of development through ISP support. It shares architectural similarities with other 8051-based MCUs but distinguishes itself with specific memory configurations and analog peripherals.

Microcontrollers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs if considering alternative MCU families.