94227AFLFT

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Clock/Timing – Application Specific

A 94227AFLFT is an integrated circuit designed for minimizing size and power consumption of digital systems such as cellular phones, PDAs and embedded systems. The circuit is optimized for low power applications, and is designed to consume less than one tenth the power used by conventional digital clock/timing circuits. The 94227AFLFT integrates an oscillator, clock generator, microprocessor/digital signal processor (DSP), frequency divider, timer/counter, PLL-based clock distribution, and other circuitry on a single board. It provides the necessary timing functions to drive any number of clock domains in a variety of systems.

The 94227AFLFT provides a flexible, reliable, and power-efficient solution. Its integrated oscillator and clock generator provide accuracy and long term stability in oscillation frequency and power consumption. The frequency divider is capable of dividing the oscillator frequency by 64, allowing the programmability of the oscillator and clock generator. Its PLL-based clock distribution function enables the transfer of multiple clock domains within a chip, simplifying the system configuration and reducing power consumption.

The timer/counter can be programmed to generate various time base signals for timekeeping, pulse-width-modulation, pulse-width-adjustment, and other frequency-related applications. The circuit provides clock signals for up to 32 digital devices. The clock signals are generated at different frequency levels for different power modes.

The 94227AFLFT also provides several power control features including power sequencing, fault protection, and reduced power consumption at input/output pins. This helps minimize the power consumption of the system, while still maintaining the necessary performance.

The 94227AFLFT is ideal for low power applications such as portable, embedded and mobile devices. Its compact size, high efficiency and low noise makes it a reliable, cost effective solution for applications requiring accurate clock/timing functionality. It can also be used in applications requiring multiple clocks, such as microprocessors, microcontrollers, or digital signal processors.

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