Contec DIO-32DM-PE, User Manual

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6. About Hardware
DIO-32DM-PE
61
6. About Hardware
This chapter provides hardware specifications and hardware-related supplementary information.
Hardware specification
Table 6.1. Specification < 1 / 2 >
Item Specification
Digital section
Number of I/O Channels
32channels (select input 32channels / I/O each 16channels / output 32
channels by software)
I/O circuit
Operating voltage 3.3VDC
Built-in power None
Input section
Input format
Unisolated LVTTL level (Equivalent to 74LV245A) (positive logic)
* 5V TTL level input enabled
Interrupt
<When general-purpose I/O is used>
4 interrupt input signals are arranged into a single output of interrupt signal
INTA. An interrupt is generated at the rising edge (LOW-to-HIGH transition).
Pull-up resistor 10k Ω
Output section
Output format Unisolated LVTTL level (Equivalent to 74LV245A) (positive logic)
Rating (Max.) 3.3VDC 8mA
Response time 50nsec
Data access method General-purpose digital I/O or I/O with bus master transfer
Echo-back function Available (at general-purpose output)
Pattern input
Sampling start trigger Software start/External start/Pattern match/SC connector
Sampling stop trigger Software stop/External stop/End of transfer/Transfer error/Specified number
of items/SC connector
Sampling clock Sampling timer/External clock input/handshake/SC connector
Sampling timer 50ns - 107s, 25ns unit
Pattern output
Generating start trigger Software start/External start/SC connector
Generating stop trigger Software stop/External stop/End of transfer/Transfer error/Specified number
of items/SC connector
Generating clock Output timer/External clock input/Handshake/SC connector
Generating timer 50ns - 107s, 25ns unit
Control signal
I/O signal level Unisolated LVTTL level
* 5V TTL level input enabled
REQ signal (handshake) Negative logic tL=50ns (Min.)
ACK signal (handshake) Negative logic tL=50ns (Min.)
External start signal Selection of rising/falling edge with the software
External stop signal Selection of rising/falling edge with the software
External clock input f=10 MHz (Max.)