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Kinetic Technologies KTS1620 24-Bit General-Purpose I/O Expander

Kinetic Technologies KTS1620 24-Bit General-Purpose I/O Expander is used via an I2C bus for microcontrollers when additional I/Os are needed. The KTS1620 series features separate power rails (VDD_I2C and VDD_P) for the I2C bus and I/O ports. Both range from 1.65V to 5.5V, allowing mixed power systems where the I2C bus power is not compatible with the I/O port power. Kinetic Technologies KTS1620 24-Bit General-Purpose I/O Expander meets the I2C fast-mode plus spec up to 1MHz. External reset input, internal power-on reset, and I2C software reset provide flexible ways to reset the IC. Four adjustable I2C secondary addresses enable multiple KTS1620 devices in one I2C bus system.

Features

  • I2C to 24-bit I/O ports expander
  • 1MHz fast-mode Plus I2C bus
  • 1.65V to 5.5V operating voltage range for both I2C bus and I/O ports
  • 4 adjustable I2C secondary addresses via ADDR
  • I2C multiple-register group programming with global loop or local loop
  • Active low reset input
  • Active low open-drain interrupt output
  • Internal power-on reset and I2C software reset
  • Noise filter on SCL/SDA inputs
  • Input/output port configurable
  • Input with polarity, latch, pull-up, pull-down, and interrupt functions
  • Allowing port input voltage above supply
  • Interrupt with trigger, mask, clear, and status features
  • Programmable input debounce enable/time
  • Output with bank/pin selectable push-pull or open-drain
  • Bit-wise programmable output drive strength
  • Low 4µA typical standby current at 3.3V
  • Maximum 25mA driving capability for each port

Applications

  • Smartphones and tablets
  • Wearables
  • Laptops and desktop computers

Overview

Block Diagram - Kinetic Technologies KTS1620 24-Bit General-Purpose I/O Expander
Veröffentlichungsdatum: 2020-02-05 | Aktualisiert: 2024-12-23