W77E516A40DL

Series:	W77
Packaging:	Tube
Part Status:	Obsolete
Core Processor:	8051
Core Size:	8-Bit
Speed:	40MHz
Connectivity:	EBI/EMI, Serial Port
Peripherals:	POR, WDT
Number of I/O:	32
Program Memory Size:	64KB (64K x 8)
Program Memory Type:	FLASH
EEPROM Size:	--
RAM Size:	1K 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:	40-DIP

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Introduction

W77E516A40DL is a single chip microcontroller utilizing advanced CMOS flash technology, ultra low voltage and power consumption design providing processing power, embedded memory, serial ports and I/O. Specifically, it has an 8-bit CPU, up to 32 KB flash memory, up to 1KB of RAM and 4KB of EEPROM. In addition, its operating voltage is from 2.7V to 5.5V and power consumption is less than 0.4mW when powered off. Therefore, the W77E516A40DL is the ultimate solution for applications requiring embedded processing power, ultra-low power and space consideration.

Application Field

The W77E516A40DL is used in a variety of industries, from consumer electronics to office automation. It has proven itself as an ideal platform for applications in consumer, automotive, computers and peripherals, gaming, medical, manufacturing and industrial control, network and telecommunications, security, instrumentation and other automation applications. In consumer products, it is applicable Notebook computers, digital cameras, digital camcorders, digital TVs, GPS devices, home theater receivers, portable media players, printers and scanners, remote controls, telephones, video game consoles and more.

Working Principle

The W77E516A40DL utilizes a Harvard architecture incorporating SRAM and ROM on-chip, and it has a direct data bus and instruction bus arrangement, as well as its own instruction set architecture. The on-chip SRAM is 64 bytes and is used for general purpose registers and a stack area. The on-chip ROM is 32 KB and used for storing the program and interrupts. The W77E516A40DL instruction set architecture consists of 8-bit and 16-bit instructions, both of which support interrupts. Furthermore, the W77E516A40DL supports up to 16 interrupt sources. The four main components of the W77E516A40DL are the CPU, ROM, SRAM and I/O. The CPU controls the basic operations, such as instruction fetch and decode, instruction execution, memory and I/O cycles, interrupts and power saving. The ROM stores the instructions that control the basic operations. The SRAM is used for general purpose registers and a stack area, while the on-chip I/O provides a wide range of peripherals such as UART, SPI and TOGGLE/PWM output.The W77E516A40DL can be powered by an external power supply or by an on-chip integrated power management system. When the power external supply is not used, the device can be powered down and still be able to maintain the context of the program, executing the same instruction when when power is resumed.

Conclusion

The W77E516A40DL is highly efficient and reliable single chip solution for a variety of embedded and industrial applications. Utilizing advanced CMOS flash technology and ultra low voltage and power consumption design, the W77E516A40DL is the perfect choice for embedded applications that require low power, small size and fast performance. This microcontroller can provide the necessary processing power and features required for modern applications such as Notebook computers, digital cameras, digital TVs and other consumer electronics. In summary, the W77E516A40DL is a great choice for embedded applications because of its performance, low power and small size.

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