MB91248PFV-GS-131K5E1

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MB91248PFV-GS-131K5E1 Application Field and Working Principle
The MB91248PFV-GS-131K5E1 is a 8-bit microcontroller (MCU) device from the F2MC family of products from Renesas Electronics Corporation. The device is designed for embedded applications and is used in a variety of low-power consumer, industrial, and automotive applications. It has an integrated microcontroller, clock generator, and power management unit. The device has a number of integrated features to support a wide range of applications, including enhanced reliability features and low-power operation.

The integrated microcontroller block includes a single-cycle 16-bit CPU core with up to 31 general-purpose registers and a cycle limiter. It has 8 Kbytes of ROM and 1 Mbyte of RAM. It also features an integrated oscillator, support for multiple external clock sources, programmable memories and I/O ports, up to 16 channels of integrated timers, PWM channels, and interrupt controllers.

The clock generator unit functions as the primary clock source for the device and consists of an external oscillator, quartz oscillators, an internal RC oscillator, and an internal self-oscillating circuit. The external oscillator provides an external clock that can be used as an alternative to the on-chip oscillator. The quartz oscillators provide a highly accurate clock for devices such as telecommunication base stations or high-precision applications. The internal RC oscillator provides a low-power source of clock, while the self-oscillating circuit enables the microcontroller to be driven by a single external clock.

The power management unit includes several power controllers: a power-on reset controller, a brown-out detector, a low-voltage detection circuit, a watchdog timer, and a power tracking unit. These power controllers help ensure power-on reset and brown-out reset operations, low-power operation, and proper operation of system peripheral devices. The device also includes integrated voltage regulators, voltage supervisors, and a programmable power monitor.

The MB91248PFV-GS-131K5E1 is designed for use in embedded applications such as consumer, industrial, and automotive systems. Its low-power operation, integrated microcontroller block, clock generator, and power management unit makes it a reliable and cost-effective solution for such applications. The device is also designed for ease of use and compatibility with a wide range of industry standard development tools, making it easy to integrate into existing and future designs.

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