W78E516B40DL

W78E516B40DL is an 8051-compatible microcontroller in the W78E516B family. It typically features about 40 KB on-chip flash for program memory, on-chip RAM, and a rich set of peripherals—multiple GPIOs, timers, serial interfaces (UART, SPI, I2C), PWM outputs, ADC (where implemented), and a watchdog timer. It supports various clock sources and power modes for embedded control tasks. The “DL” suffix denotes package/lead-count variants (e.g., DIP, LQFP). For exact specs (RAM size, I/O count, peripherals, timing), consult the vendor’s datasheet and user guides.

W78E516B40DL Features (highlights)
- 8-bit 8051-compatible microcontroller core
- High-speed operation up to about 40 MHz
- On-chip program Flash memory and RAM
- Multiple I/O ports with flexible peripheral mappings
- Timers/counters (multi-timer architecture) and PWM outputs
- Serial communication options: UART/USART (and often SPI/I2C)
- On-chip analog: analog-to-digital converter with multiple channels
- Interrupt controller with multiple sources and priority levels
- Watchdog timer for system reliability
- In-system/in-circuit programming support (ISP/IAP)
- Low-power modes and wake-up capability
- Package: commonly 40-pin package (DL variants)
Note: exact memory sizes, peripheral counts, and pinout can vary by revision; refer to the specific datasheet for precise numbers and pin functions.

- Pin count: 40 pins
- Function: 8-bit microcontroller (8051-compatible) with on-chip flash RAM and peripherals for embedded control (timers, UART, I/O, etc.).

- Manufacturer: Winbond Electronics Corp.
- What kind of company: A Taiwanese semiconductor company that specializes in memory integrated circuits (NOR/NAND flash, SRAM, DRAM) and related memory solutions.

W78E516B40DL is an 8051‑based microcontroller with moderate flash/RAM, suitable for cost‑sensitive embedded tasks. Common application areas include:
- Consumer electronics and home appliances (controls, interfaces, dashboards)
- Industrial automation, sensing, and data acquisition
- Metering and energy-management systems (smart meters, interface controllers)
- Small to mid‑scale embedded control in equipment and devices
- IoT/smart-device controllers (sensors, gateways, edge nodes)
- Prototyping, education, and hobbyist projects
These regions leverage its I/O, timers, and peripherals for reliable, low‑cost embedded solutions.

40-pin DIP package (DIP-40); RoHS-compliant lead-free version.