W77E516A40PL
| 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 | 64KB (64K x 8) |
| Data Converters | - |
| Package | Tube |
| Product Status | Active |
| Base Product Number | W77E516 |
| REACH Status | REACH Unaffected |
| Standard Package | 30 |
| ECCN | 3A991A2 |
| HTSUS | 8542.31.0001 |
W77E516A40PL 8-bit microcontroller IC 40MHz 64KB FLASH
The W77E516A40PL is a high-performance 8-bit microcontroller from Nuvoton Technology Corporation (formerly Winbond), featuring a redesigned 8051-compatible processor core that delivers significantly enhanced performance compared to traditional 8051 microcontrollers. This fast CMOS microcontroller operates at speeds up to 40MHz with a 4-clock/machine cycle architecture, achieving instruction execution times that are typically 1.5 to 3 times faster than standard 8051 devices at the same crystal speed, resulting in overall performance approximately 2.5 times better than the original architecture. The mcu integrates 64KB of in-system programmable Flash EPROM, 4KB auxiliary Flash EPROM for loader programs, 256 bytes of scratch-pad RAM, and 1KB of on-chip SRAM for MOVX instructions.
W77E516A40PL Mcu Key Features
The W77E516A40PL offers comprehensive peripheral integration including four 8-bit I/O ports (Port 0 with software-enabled internal pull-up resistors), one extra 4-bit I/O port with Wait State control signal, three 16-bit timers/counters, and two enhanced full-duplex serial ports. The chip features 12 interrupt sources with two levels of priority, a programmable watchdog timer, dual 16-bit data pointers, and software-programmable access cycles to external RAM and peripherals. Key specifications include on-chip oscillator and clock circuitry, power-on reset (POR), low voltage detection (LVD), and three power-saving modes for optimized energy consumption. The microcontroller supports both in-system programming (ISP) capability and provides EBI/EMI connectivity options, making it suitable for applications requiring flexible memory expansion and peripheral interfacing.
Alternative Microcontroller IC Models
● W77E516A40DL: A 40-pin DIP package variant offering the same 8-bit microcontroller functionality with 64KB Flash memory and 40MHz operation, ideal for through-hole assembly and prototyping applications.
● W78E516B40PL: A similar 8-bit microcontroller with enhanced features including extended temperature range and additional peripheral options, maintaining pin compatibility with the W77E516 series.
● MPC82G516A: A Megawin Technology alternative offering 8-bit 8051-compatible architecture with 64KB Flash memory and similar peripheral integration, designed for cost-effective embedded applications.
● TMS370C758B: A Texas Instruments 8-bit microcontroller featuring 8051 instruction set compatibility with integrated peripherals and memory options for industrial control systems.
