INTELIGENT I/O
EXPANSION CHIP
RABBIT RIO
®
The Rabbit RIO chip is an intelligent I/O processor
ideally equipped for industrial automation and control
The Rabbit RIO chip offers both I/O expansion and peripheral
features that easily integrate into new or existing designs. It
interfaces to any microcontroller with an available SPI or
parallel port. Multiple peripheral features offer a distinct
advantage for motor control applications. The Rabbit RIO
simply takes the load off the processor, making it ideal for
applications with demanding networking requirements.
The Rabbit RIO is also ideal for machine control applications.
I/Os are 5V tolerant, which also includes pin-pair protection
for applications such as H-bridge drivers. Since multiple
status bits are set from a single match register, pins are easily
configurable for higher drive current operations. The same
signal could be output on multiple pins for applications that
require a higher current. It also provides push pull protection
for sink and source drivers.
BENEFITS
– Easily interface to any CPU via an available SPI or
parallel port
– Instantly add up to 32 digital I/O lines
– 8 independent functional channels with 4 ports each
– Functional channels configurable as:
Bi-directional I/O, PWM or PPM outputs, TRIAC
signal generators, input capture, counter,
Quadrature decode peripheral
– Add I/O and peripheral features to any new or
existing design
– Use multiple Rabbit RIO devices for large I/O
requirements
RELATED PRODUCTS
APPLICATION EXAMPLE
CPU INTERFACE (PARALLEL OR SPI)
GLOBAL CONTROL
Block 0
PWM, PPM, I/O,
Quadrature Decoder
Block 7
PWM, PPM, I/O,
Quadrature Decoder
Block 1
PWM, PPM, I/O,
Quadrature Decoder
Block 6
PWM, PPM, I/O,
Quadrature Decoder
Block 2
PWM, PPM, I/O,
Quadrature Decoder
Block 5
PWM, PPM, I/O,
Quadrature Decoder
Block 3
PWM, PPM, I/O,
Quadrature Decoder
Block 4
PWM, PPM, I/O,
Quadrature Decoder
Rabbit® SBC
BL2100
Series
Rabbit® SBC
BL4S100
Series
Rabbit® SBC
BL4S200
Series
RabbitCore®
RCM3000
Series
Dynamic C®
SPECIFICATIONS
FEATURES
Rabbit RIO® Expansion Chip
Up to 40 MHz
3.0-3.6VDC
5.0VDC (3.3VDC typ.)
22 MHz @ 31.3 mA, 25° C
22 MHz @ 1.1 mA, 25° C
8 mA
SPI or 8-bit parallel
4
8 independent channels, each with 4 ports:
• Up to 32 bi-directional I/O lines
• Up to 32 PWM outputs
• Up to 16 PPM outputs
• Up to 32 TRIAC signal generators
• Up to 8 input capture peripherals
• Up to 8 counters
• Up to 8 quadrature decode peripherals
64-pin TQFP 10 mm x 10 mm x 1.4 mm
CLOCK SPEED
OPERATING VOLTAGE
MAXIMUM I/O INPUT VOLTAGE
CORE CURRENT
I/O RING
OUTPUT DRIVE
CPU INTERFACES
FIXED DIGITAL INPUTS
CONFIGURABLE I/O
PACKAGE TYPE
RIO PROGRAMMABLE I/O APPLICATION KIT
APPLICATION KIT CONTENTS:
• RCM4110 module
•
•
•
•
•
•
Rabbit RIO Prototyping Board
Universal AC adapter, 12 V DC, 1 A.*
10-pin header to DB9 programming cable with integrated
level-matching circuitry
Plastic and metal standoffs with 4-40 screws
A bag of jumpers and jumper wires for use on the
Prototyping Board
Rabbit® 4000 Processor Easy Reference poster
*Included only with Application Kits sold for the North American market. A header plug leading to bare leads is
provided to allow overseas users to connect their own power supply with a DC output of 8–30 V.
PART NUMBERS
101-1147
20-668-0030
20-101-1187
DESCRIPTION
Rabbit RIO® Programmable I/O Application Kit
Rio I/O chip
Rio I/O chip (2 pack)
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is always available to serve you with expert technical support and our industry
leading warranty. For detailed information visit www.digi.com/support.
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