BQ3285ESS

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BQ3285ESS is a real time clock and timer IC commonly used for timekeeping applications in embedded products. This device provides high accuracy without requiring user calibration. The integrated oscillator keeps time up to two years on a single coin-type battery, eliminating the need for regular battery replacement. Its low power design makes it ideal for use in battery powered devices. The integrated 32kHz oscillator allows for accurate timekeeping while consuming minimal power.

BQ3285ESS features a built-in programmable clock. It may be configured to provide periodic interrupts or generate an interrupt on reaching specific times or dates. Additionally, this device has an integrated temperature-compensated oscillator for improved accuracy. This feature allows for reliable timekeeping even in temperature-variable environments.

The device uses a 16-bit register for timekeeping. This register consists of 15 bytes which can store values independently up to 16,777,215. Additionally, BQ3285ESS features a standard calendar clock feature which allows for timekeeping up to 24 hours. The device has an integrated 16-bit real-time clock (RTC). The RTC is used to store the current time and date information, along with user-defined alarms and settings. The device is also equipped with an integrated temperature alarm, which can be used to detect and alert users of temperature changes.

BQ3285ESS also has multiple I/O ports which enable connection to external devices. These include 8 bidirectional I/O ports, two serial I/O ports, one 12-bit A/D converter, and one 16-bit PWM. The device is also configured to accept data from external sources, such as a time server for synchronization purposes. With microcontroller interfaces, BQ3285ESS can be used as an interface between external hardware and an embedded application.

In addition to its ability to connect to external devices, the device also features a self-contained Standard Timer/Counter (STC) unit. This unit is used to count time using an internal programmable timer. The timer can operate on a single-shot, toggle, or pulsed mode. The timer accuracy is up to nine bits, allowing for precise timing control.

BQ3285ESS is a versatile IC used in embedded products for accurate timekeeping and timer control. This device provides excellent timing accuracy with a minimal amount of power consumption. Its programmable clock, integrated temperature-compensated oscillator, and variety of I/O ports make it ideal for use in a wide range of applications. It is an excellent option for managing time in embedded products, as it can be used in battery-powered devices while still providing reliable timing control.

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