Data Sheet

iolinker Family Data Sheet

1 Introduction

1.1 Features

• IO extension with synchronized pin updates

• Dynamic IO matrix connections for signals up to 29.56 MHz

• UART / SPI / I2C interface, depending on chip version

• 7 hardware address pins that allow parallel connection of up to 127 uniquely addressable

slaves

• Very few external components required, internal oscillator and PLL

• Instant on – powers up in microseconds

• Software reset and chip enable allow for quick and ﬂexible set-ups, including multiplex-

ing applications

• PWM generation

• Device operates with 1.2V or 1.8V / 2.5V / 3.3V

1.2 Introduction

The iolinker chip functions as a dynamically conﬁgurable IO matrix. Its main functionality,

besides IO extension, is to dynamically set up a matrix of GPIO connections, that allow direct

pass-through of high-frequency signals. Circuits can thereby be conﬁgured and programmed

dynamically. There are UART / SPI / I2C versions that allow for easy integration of up to

127 chips connected in parallel. The chips also allow PWM signal output.

1.3 Applications

• I/O Port extender

• Large keypads

• Cable and wire control, short-circuit detection

• Software-based circuit conﬁguration

• Simpliﬁed prototype boards, e.g. to wire up microcontrollers and periphery electronics

on the ﬂy

• User-conﬁgurable IO periphery interfaces

• Bus controller

 2017 jInvent. The speciﬁcations and information herein are subject to change without notice.