W77E058A40PL
| Parameters | |
|---|---|
| Series | W77 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 44-LCC (J-Lead) |
| Mfr | Nuvoton Technology Corporation |
| Mounting Type | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Speed | 40MHz |
| Oscillator Type | Internal |
| Core Processor | 8051 |
| RAM Size | 1K x 8 |
| Number of I/O | 36 |
| Peripherals | POR, WDT |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 5.5V |
| EEPROM Size | - |
| Program Memory Type | FLASH |
| Connectivity | EBI/EMI, Serial Port |
| Core Size | 8-Bit |
| Program Memory Size | 32KB (32K x 8) |
| Data Converters | - |
| Package | Tube |
| Product Status | Active |
| Base Product Number | W77E058 |
| REACH Status | REACH Unaffected |
| Standard Package | 30 |
| ECCN | 3A991A2 |
| HTSUS | 8542.31.0001 |
W77E058A40PL 8-bit microcontroller high-speed 8051 MCU
The W77E058A40PL is a high-performance 8-bit microcontroller from Nuvoton, featuring a redesigned 8051-compatible core that operates at a maximum clock frequency of 40 MHz. Delivering a significant performance boost over traditional 8051 architectures, it executes most instructions in just 1 to 4 clock cycles, achieving an effective throughput of up to 10 MIPS. This device is housed in a 44-pin PLCC package and is designed for embedded systems that demand higher computational power, rich peripheral integration, and robust operation, making it a powerful, drop-in upgrade for legacy 8051-based designs across industrial, communication, and consumer applications.
Its core enhancement, the 1-T (single clock cycle) architecture, provides up to 10 times the speed of a standard 12-clock 8051 at the same crystal frequency. The chip integrates 32 KB of flash memory for program storage, 1 KB of SRAM, and an additional 1 KB of auxiliary RAM. Key peripherals include dual full-hardware UARTs for simultaneous serial communication, a watchdog timer, three 16-bit timers/counters, and a four-channel 10-bit PWM unit. It operates from a wide 2.4V to 5.5V supply range and supports an industrial temperature grade, ensuring reliability in diverse environments.
Alternative microcontroller models
● STC12C5A60S2 (STC Micro): A popular high-speed 8051-core MCU from a Chinese supplier, offering similar 1T performance, integrated ADC, and competitive pricing for cost-sensitive projects.
● C8051F120 (Silicon Labs): A high-performance mixed-signal MCU with a pipelined 8051 core running at 100 MIPS, featuring a 12-bit ADC and DAC for precision analog applications.
● AT89C51RD2 (Microchip Technology): A classic enhanced 8051 microcontroller with 64KB Flash and 2KB RAM, known for its reliability and wide ecosystem in traditional 8051 designs.
