UPD78F8042K8(R)-9B4-AX

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The UPD78F8042K8(R)-9B4-AX is a single-chip 8-bit microcontroller belonging to the 78K0R group from the NEC Electronics Corporation. It is part of their 4-bit Series MCU and features a low pin-count making it appropriate for a wide range of applications. This microcontroller is also useful for implementing advanced features for fast, low-power application designs.

The UPD78F8042K8(R)-9B4-AX has an 8-bit core with a clock speed of up to 10 MHz and supports a variety of peripherals. The included I/O pins are configured to provide flexibility, including multiple timers, pulse width modulation, serial I/O ports, and an analog-to-digital converter. It also offers an integrated watchdog timer and low voltage detection with an internal voltage regulator.

This microcontroller’s on-chip ROM offers code space and power saving capability while its RAM and ROM integrated together support high-speed processing. Its internal ROM supports up to 32K bytes and its RAM is expandable up to 256 bytes. The UPD78F8042K8(R)-9B4-AX also includes various peripheral functions, such as asynchronous serial, I2C, SPI, motor control and quadrature encoder interface.

To reduce the design cost for overhead of external circuits, this microcontroller supports multiple power management functions. It has three power-saving modes: low-speed standby mode, low-speed stop mode, and deep sleep mode. Low-speed standy mode determines the MCU to run the program at a low speed, which can be selected from between 4, 2, 1MHz. On the other hand, the low-speed stop mode puts its operation into a “halt” command which stops the program code execution, while external interrupts allow the MCU to resume its activity. The deep sleep mode, on the other hand, shuts down some of the peripheral modules and MCU internal functions while consuming minimal power while retaining important registers and RAM contents.

The UPD78F8042K8(R)-9B4-AX has integrated Flash memory and data flash memory with a maximum program size of 40K bytes and data flash size of 4K bytes. The programming language for this microcontroller is based on the 78K/LX microcontroller core which uses an 80C51 instruction set. Additional features include interval timer, interrupt controller, serial port, A/D converter, watchdog timer and a dual programmable speed counter.

What sets this microcontroller apart from the rest is its super low power consumption and the possibility for embedded applications. It can be used for a wide range of applications such as consumer electronics, home entertainment, in-vehicle infotainment, health-care applications, and many other embedded applications.

Due to its versatility and wide range of applications, the UPD78F8042K8(R)-9B4-AX is a popular choice of microcontroller. In summary, this microcontroller offers low power consumption, advanced features, expandable capabilities, and more. Furthermore, it’s versatile enough to be used in many different embedded applications, making it an ideal choice for both consumers and businesses alike.

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