The National Instruments PCI-6601 is a PCI timing board with four 32-bit up/down counter/timers and 32 static digital I/O lines.
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Key product information and technical features.
The PCI-6601 belongs to NI's 660x counter/timer family. Its signal connections use a 68-pin SCSI connector; NI's 66xx connection guide identifies appropriate cables and terminal accessories.
Verified product specifications.
| Counter/timer channels | 4 up/down |
|---|---|
| Counter resolution | 32 bit |
| Maximum source frequency without prescaling | 20 MHz |
| Maximum source frequency with prescaling | 60 MHz |
| Digital I/O channels | 32; static transfers; no handshaking |
| I/O logic compatibility | TTL/CMOS |
| I/O connector | 68-pin female SCSI-II |
| Operating temperature | 0 to 55 °C |
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Manufacturer
Host interface
NI 660x counter/timer board
NI lists PCI-6601 in Group 1 of its 68-pin counter/timer cable and accessory guide.
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Product-specific answers based on available technical information.
No. The internal timebases are 100 kHz and 20 MHz. The 60 MHz figure is the maximum source frequency with prescaling enabled.
NI's Group 1 counter/timer table lists the shielded SH68-68-D1 as the recommended cable. Use the same guide to select a compatible terminal accessory.