MOD-IO Olimex Ltd., MOD-IO Datasheet - Page 11

• Manufacturer Part Number: MOD-IO
• Description: Other Development Tools EXPANDABLE BRD INPUT/OUTPUT W/UEXT
• Manufacturer: Olimex Ltd.
• Type: Inputs/Outputsr

Specifications of MOD-IO

• Rohs: yes
• Product: Development Boards
• Tool Is For Evaluation Of: ATMega16L-8AU
• Operating Supply Voltage: 8 V to 30 V
• Description/function: MOD-IO is a small but powerful development board which lets you control 4 opto-isolated inputs and 4 relay outputs
• Dimensions: 100 mm x 80 mm
• Interface Type: I2C, SPI, UART, UEXT

BOARD LAYOUT
POWER SUPPLY CIRCUIT
CLOCK CIRCUIT
RESET CIRCUIT
MOD-IO is typically power supplied with 8-30V DC.
Power consumption when all relays are working is about 310 mA.
Crystal Quartz 8 MHz connected to Atmega16l pin 7 (XTAL2) and pin 8 (XTAL1).
Crystal Quartz 32.768kHz connected to Atmega16L pin 25 ((TOSC1)PC6) and pin 26
((TOSC2)PC7).
MOD-IO reset circuit includes Reset scheme MCP130T (U2), AVRISP connector pin
5, JTAG connector pin 6, Atmega16L pin 4 (RESET), R9 (100Ohm), R10 (10k), C10
(100nF) and RST button.
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