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SH3003 - MicroBuddy Support IC for Microcontrollers

General Description

Three components make a complete system: any microcontroller, the SH3003, and a bypass capacitor.

This low-cost system would consume very little power and have clock-frequency accuracy of ± 0.5%.

A fourth component, a 32.768kHz crystal, raises the clock frequency accuracy to ± 0.0256% (± 256 ppm).

Key Features

  • ‹ Highly integrated.
  • IC - 3mm x 3mm x 0.9mm, 16-lead MLP (QFN) package ‹ CPU Supervisor.
  • Low VDD reset programmable from 2.3V to 4.3V.
  • Watchdog timer with programmable time out periods.
  • Both active-high and active-low reset outputs ‹ Clock Management System.
  • Replaces high-frequency (HF) crystal or resonator.
  • Programmable clock output from 32.768kHz to 16MHz.
  • Speed shift between multiple clock frequencies.
  • Adjustable spectrum.

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Datasheet Details

Part number SH3003
Manufacturer SEMTECH
File Size 702.53 KB
Description MicroBuddy Support IC for Microcontrollers
Datasheet download datasheet SH3003 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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POWER MANAGEMENT Description Three components make a complete system: any microcontroller, the SH3003, and a bypass capacitor. This low-cost system would consume very little power and have clock-frequency accuracy of ± 0.5%. A fourth component, a 32.768kHz crystal, raises the clock frequency accuracy to ± 0.0256% (± 256 ppm). The SH3003 can operate completely stand-alone, or under control of the microcontroller. A single-wire interface handles both bi-directional communications and the interrupt/wake-up signal from the SH3003. The SH3003 stores all configuration, calibration, parameters, and status information in a 36-byte bank of control registers. On reset, most of these are reloaded with defaults from the factory-set non-volatile memory.