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W78C438C40PL - High-Performance 8051 Microcontroller

The W78C438C40PL from Nuvoton Technology Corporation is a high-performance 8-bit microcontroller based on the industry-standard 8051 core architecture. Operating at speeds up to 40MHz, this ROMless MCU delivers exceptional processing power for demanding embedded and industrial applications.

Key Features & Benefits

  • High-Speed Performance: 40MHz clock frequency for rapid instruction execution
  • Flexible Architecture: ROMless design allows external program memory configuration
  • Generous I/O: 40 programmable I/O pins for versatile connectivity
  • Reliable Memory: 256 x 8 RAM for efficient data handling
  • Industrial-Grade: Operating temperature range 0°C to 70°C (TA)
  • Compact Package: 84-LCC surface mount package for space-efficient designs

Applications

The W78C438C40PL is ideal for a wide range of embedded system applications including industrial automation, motor control, data acquisition systems, communication interfaces, and custom embedded solutions requiring external program memory flexibility.

Why Choose HQICKEY?

At HQICKEY, we specialize in authentic sourcing and lifecycle support for premium semiconductors. Our engineering-focused approach ensures you receive genuine components with comprehensive technical documentation and expert support.

Explore our complete range of Microcontrollers for your next embedded project, or visit our News Blog for the latest semiconductor industry insights and technical resources.

Product attributes Property Value
Manufacturer Nuvoton Technology Corporation
Product Series W78
Packaging | Tube
Core Processor 8051
Core Size 8-Bit
Speed 40MHz
Connectivity EBI/EMI, Serial Port
Peripherals -
Number of I/O 40
Program Memory Size -
Program Memory Type ROMless
EEPROM Size -
RAM Size 256 x 8
Voltage - Supply (Vcc/Vdd) 4.5V ~ 5.5V
Data Converters -
Oscillator Type External
Operating Temperature 0°C ~ 70°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Supplier Device Package -
Package / Case 84-LCC