MIAC Serial Expansion Module

Description

MIAC Serial Expansion Module
MI8447
This add-on module allows you to create an interface between an
MI0235 MIAC
automation controller and conventional TTL-level systems, to allow you access to commonly used serial buses. The unit includes RS232 and RS485 bus interfaces as well as TTL level serial buses (SPI, I2C and USART). The unit also includes a number of TTL-level I/O lines and a FAT16/32-compatible SD card slot.
The MIAC Serial Expansion Module is designed in particular to provide a wide range of serial communication interfaces. In addition to generic I/O, two PWM outputs and five ADC inputs, this module also provides TTL-level interfaces for I2C, SPI and UART serial communication protocols. The front panel provides access to a second UART via a DCE 9-way D-type socket with RS232-level signals. This module also incorporates an SD memory card slot for data logging, storing and retrieval applications.
MIAC Serial Expansion Module Features
18x TTL-level I/O pins
SPI bus
I2C bus
UART TTL-level serial bus
RS232 interface (DB9F)
2x PWM outputs
5x ADC inputs, 12-bit
SD card slot
Supported Flowcode Components
ADC, Switch, LED, M_LED, Keypad, PWM, Stepper, Servo, I2C, UART-1, UART-2, SPI, FAT
MIAC Expansion Modules Technical Specifications
Power supply
Typical voltage range
10-12V
Maximum voltage
16V
Typical current
100-200mA
Maximum current
< 2A
I/O terminals
Maximum output current
6mA
Input high
> 4V
Input low
< 1V
Input impedance (0-5V)
> 1MΩ
Typical input voltage range
0-5V
Maximum input voltage
-7V, +12V
Analog sensitivity (0-5V)
5mV
Processor
dsPIC30F5013, 66K ROM, 4K RAM
Environmental
Operating temperature
-5 to +50 °C
Storage temperature
-40 to +70 °C
Internal Block Schematic