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PT7C4372C Datasheet Real-time Clock Module

Manufacturer: Pericom Semiconductor (now Diodes Incorporated)

Overview: PT7C4372A/4372C ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

PT7C4372A/C are I2C bus interface-pliant real-time clocks that have been adjusted for high precision.

In addition to providing a function for generating six types of interrupts, a dual alarm function, an oscillation stop detection function (used to determine presence of valid internal data at power-on), they includes a digital clock precision adjustment function that can be used to set various levels of precision.

Since the internal oscillation circuit is driven at a constant voltage, 32-kHz clock output is stable and free of voltage fluctuation effects.

Key Features

  • External quartz oscillator 32.000kHz and 32.768kHz selectable.
  • Supports I2C-Bus's high speed mode (400 kHz).
  • Includes time (Hour/Minute/Second) and calendar (Year/Month/Date/Day) counter functions (BCD code).
  • Select between 12-hr and 24-hr clock display.
  • Auto calculation of leap years until 2099.
  • Built-in high-precision clock precision control logic.
  • Interrupt generation function (cycle time range: 1 month to 0.5 seconds, includes.

PT7C4372C Distributor