ID: 287639
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NI 653x devices are parallel digital pattern I/O and handshakinginterfaces for PCI,PXI,and PCMCIA.They incorporate the Nationalnstruments DAQ-DIO ASIC,specifically designed to deliver highperformance on plug-in DIO devices.The NI 653x devices performpattern I/O,handshaking,and unstrobed I/O at speeds up to 20 MHz,or 80 Mbytes/s for 32-bit transfers (NI 6534).The NI 6534 familydelivers digital I/O coupled with large onboard memory for patternI/O at deterministic rates. ¥ Table 1. NI 653x Specifications Overview (See page 434 for detailed specifications) ProductBusChannelsMaximum Rate (MHz)Voltage LevelsMemory NI 6534PCI, PXI32205 V TTL/CMOS64 MBNI 6533PCI, PXI, 32Up to 2 (pattern I/O)5 V TTL/CMOSÐ PCMCIA, ISA