Skip to product information
1 of 1
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Regular price $94,999.99
Regular price $99,999.99 Sale price $94,999.99
Sale Sold out
Quantity Unit Price Total Price
1 $94,999.99 $94,999.99
15+ $91,999.99 $1,379,999.85
25+ $89,999.99 $2,249,999.75
50+ $84,999.99 $4,249,999.50
100+ $74,999.99 $7,499,999.00
N+ $15,000.00 Price Inquiry
Shipping calculated at checkout.
Quantity
Component Recycling

Request Quote / Inquiry

Product attributes Property Value
Manufacturer Nuvoton Technology Corporation
Product Series W77
Packaging | Tray
Core Processor 8051
Core Size 8-Bit
Speed 40MHz
Connectivity EBI/EMI, Serial Port
Peripherals POR, WDT
Number of I/O 36
Program Memory Size -
Program Memory Type ROMless
EEPROM Size -
RAM Size 1K x 8
Voltage - Supply (Vcc/Vdd) 4.5V ~ 5.5V
Data Converters -
Oscillator Type Internal
Operating Temperature 0°C ~ 70°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Supplier Device Package -
Package / Case 44-BQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Nuvoton W77C032A40FL is a high-speed 8051-based microcontroller in a 44-BQFP package. It operates at up to 40MHz, providing a significant performance boost over traditional 8051 devices. It includes 1KB of on-chip RAM and requires a 4.5V to 5.5V supply. This device is designed for applications that need the familiar 8051 instruction set with higher throughput. It includes Power-on Reset and a Watchdog Timer for reliable operation. With an operating temperature range of 0°C to 70°C, it is suited for commercial and industrial environments.

  • 40MHz operation delivers 3x faster execution than standard 8051s.
  • 8051 core compatibility allows reuse of existing software investments.
  • 5V operation simplifies interfacing with legacy logic and sensors.
  • 1KB RAM is sufficient for control-oriented tasks without external memory.

Legacy Industrial Controllers

The 8051 core allows drop-in replacement for older designs, while the 40MHz speed provides a significant performance upgrade for existing firmware.

High-Speed Data Acquisition

With 40MHz operation, it can sample external ADCs at high rates and process data in real-time, making it suitable for vibration analysis or audio capture.

Telecom Line Cards

The 5V operation interfaces directly with legacy telecom signaling circuits, and the 1KB RAM buffers control messages for T1/E1 line interfaces.

Printer Controllers

The fast 8051 core can handle raster image processing for basic laser printers, while the 44-pin package provides enough I/O for motor and sensor control.

Test and Measurement Equipment

In benchtop multimeters or frequency counters, the 40MHz speed enables precise time measurement, and the 5V logic simplifies interfacing with analog front-ends.

Automotive Aftermarket Modules

For retrofit engine control units or dash displays, the 8051 architecture has extensive community support, and the 0°C to 70°C range suits cabin-mounted electronics.

Q: What core does this use?
A: It is based on the 8051 core architecture.
Q: What is the maximum clock speed?
A: It operates at up to 40MHz.
Q: How much RAM is included?
A: It has 1K x 8 bytes of on-chip RAM.
Q: What is the package type?
A: It comes in a 44-BQFP (quad flat pack) package.
Base Product Number : W77C032A
1KB RAM 40MHz 5V 8-bit MCU 8051 BQFP-44 Industrial Telecom WDT
Q: What core does this use?
A: It is based on the 8051 core architecture.
Q: What is the maximum clock speed?
A: It operates at up to 40MHz.
Q: How much RAM is included?
A: It has 1K x 8 bytes of on-chip RAM.
Q: What is the package type?
A: It comes in a 44-BQFP (quad flat pack) package.