W78E054B40PL

Series:	W78
Packaging:	Tube
Part Status:	Obsolete
Core Processor:	8051
Core Size:	8-Bit
Speed:	40MHz
Connectivity:	EBI/EMI, UART/USART
Peripherals:	POR, WDT
Number of I/O:	36
Program Memory Size:	16KB (16K x 8)
Program Memory Type:	FLASH
EEPROM Size:	--
RAM Size:	256 x 8
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 5.5 V
Data Converters:	--
Oscillator Type:	Internal
Operating Temperature:	0°C ~ 70°C (TA)
Package / Case:	44-LCC (J-Lead)

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Introduction

W78E054B40PL is an 8051 based microcontroller from Winbond. It is designed for embedded applications and is widely used in applications in various fields such as industrial automation, home automation, medical equipment and security systems. The design of the W78E054B40PL supports a wide range of features and peripherals, including external memory, serial communication, I/O ports, A/D conversion, analog monitoring, and pulse-width modulation (PWM).

Application Fields

The W78E054B40PL is used in a wide variety of embedded applications, including industrial automation, home automation, medical equipment, security systems, automation, and many more. It is capable of controlling robotic arms, traffic lights, measuring devices, and complex industrial machines. The W78E054B40PL is designed for high-volume production applications and is highly reliable due to its low power consumption and wide operating temperature range. In addition, the W78E054B40PL provides a cost effective solution for various embedded applications due to its low component cost and high integration.

Working Principle

The W78E054B40PL uses an 8051 CPU core, which provides the basic functionality of the microcontroller. The 8051 is a register-oriented processor, and the W78E054B40PL uses the register-oriented instructions to execute the program instructions stored in its internal memory. The W78E054B40PL is a single chip microcontroller, and it is self-contained with all the necessary peripherals, RAM, ROM, I/O ports, and serial communications. The 8051 core provides the basic processing functions, including a 16-bit address bus, an 8-bit data bus, an 8 transaction register, an 8-bit instruction register, and 8 interrupt vectors.The W78E054B40PL also supports various on-chip peripherals, such as an 8255 Parallel I/O chip, an 8253 Timer/Counter, a 10-bit A/D converter, pulse-width modulation (PWM), and a serial communications controller. The 8255 Parallel I/O chip provides the necessary I/O ports and features, such as interrupts and handshaking signals, to support different types of external devices. The 8253 Timer/Counter can be used to generate clock signals, implement delays, and measure external events. The 10-bit A/D converter allows the W78E054B40PL to measure and monitor analog signals, while the PWM allows the microcontroller to generate pulse-width modulated signals for various applications.The serial communication controller allows the W78E054B40PL to send and receive data from external devices and systems. The serial communications interface supports UART, SPI, and I2C, and it can be configured to support various protocols such as RS232, RS485, I2C and SPI.

Conclusion

The W78E054B40PL is a powerful and cost-effective 8051-based microcontroller that is used in a variety of applications in various fields. The W78E054B40PL has a wide range of features and peripherals, such as an 8255 Parallel I/O chip, an 8253 Timer/Counter, a 10-bit A/D converter, pulse-width modulation (PWM), and a serial communications controller, that make it suitable for various applications. The W78E054B40PL is highly reliable due to its low power consumption and wide operating temperature range, and its low-cost components make it a cost-effective solution for different embedded applications.

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