PCI-1735U │ 64-ch Digital I/O and Counter PCI Card
www.szpk.cn
主要特点
◇ 32 TTL-level digital input channels
◇ 32 TTL-level digital output channels
◇ High-output driving capacity
◇ Low-input loading
◇ 3 programmable counter/timer channels
◇ User configurable clock source
◇ Breadboard area for custom circuits
内容介绍
The PCL-720+ and PCI-1735U digital I/O and counter cards are PC-compatible add-on cards with 32 digital input channels, 32 digital output channels and three programmable counter/timer channels. Their digital I/O channels are TTL-compatible and use 74LS244 driver/buffer circuits to provide high output driving capacity. These buffered circuits also require lower input loading current than regular TTL circuits. The cards' 8254 programmable counter/timer provides three flexible 16-bit counter/timer channels. You can generate waves and pulses by programming the 8254. Jumper settings determine the clock crystal frequency. The cards also includes a breadboard area perfect for customized circuits.
