ADLINK PCI-7200 - Manual (Page 15)

Introduction 3
1.3 Specifications
Digital I/O (DIO)
X Number of DI Channels: 32 TTL compatible
X
Number of DO Channels: 32 TTL compatible
X
Data Transfer Mode
Z
Program I/O
Z
Internal timer pacer transfer
Z
External I_REG strobe input
Z
Handshake data transfer
X
Maximum Transfer Speed:
Z
3MHz (12MB/sec) by external clock, handshake or
external strobe
Z 2MHz (8MB/sec) by internal timer pacer transfer
X FIFO:
Z Eight words (32-bit) (for PCI-7200/LPCI-7200S)
Z
2k + 8 words (32-bit) (for cPCI-7200 Digital input chan-
nels)
X
Input Voltage:
Z
Low: Min. 0V; Max. 0.8V
Z
High: Min. +2.0V
X
Input Load:
Z
Low: +0.5V @ -0.6mA max.
Z
High: +2.7V @ +20
µ
A max.
X
Output Voltage:
Z
Low: Min. 0V; Max. 0.5V
Z
High: Min. +2.7V
X
Driving Capacity:
Z
Low: Max. +0.5V at 24mA (Sink)
Z
High: Min. 2.4V at -3.0mA (Source)