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40 MB/s High-speed 32-CH DI and 32-CH DO Universal PCI DIO Card. PCI-D64HU is phased out and replaced by PIO-D64U.


40 MB/s High-speed 32-CH DI and 32-CH DO Universal PCI DIO Card. PCI-D64HU is phased out and replaced by PIO-D64U.

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The PCI-D64HU has officially been phased out and will no longer be available. It has now been replaced by PIO-D64U.

PCI-D64HU is a high-speed digital I/O card consisting of 32 digital input channels and 32 digital output channels. High-performance designs make this card perfect for high-speed data transfer and pattern generation applications.

The PCI-D64HU performs high-speed data transfer by bus-mastering DMA via 32-bit PCI bus. The maximum data transfer rate can be up to 40 MB per second. Several digital I/O transfer modes are supported, such as direct programmed I/O control, timer pacer control, external clock mode and handshaking mode. It’s a reliable and cost-effective connection interface that works on your computer system to control high-speed peripherals.


  • Support 32-bit, 33 MHz Universal PCI bus
  • 32-CH 5 V TTL digital inputs
  • 32-CH 5 V TTL digital outputs
  • 2-CH bus mastering scatter/gather DMA
  • Data transfer rate up to 40 MB/s for each channel
  • Support 4 data transfer modes:
    • Direct program control mode
    • Internal timer pacer mode
    • External clock mode (DI only)
    • Handshaking mode
  • On board 1 k/2 k DWORD FIFO for DI/DO respectively
  • DO FIFO support ring buffer mode
  • No bus loading in repetitive pattern generation application
  • Programmable input digital filter for all input signals including handshaking and trigger signals


  • Driver for Windows 2000/XP
  • Demo programs (With source code):
  • Visual Basic
  • Visual C++
  • Borland C++ Builder


Digital Input
Channels 32
Compatibility 5 V/TTL
Input Voltage Logic 0: 0.8 V max.
Logic 1: 2.0 V min.
Handshaking Signals I_REQ input , I_ACK output , I_TRG input
Digital Output
Channels 32
Compatibility 5 V/TTL
Output Voltage Logic 0: 0.55 V max.
Logic 1: 2.0 V min.
Output Capability Sink: 64 mA @ 0.55 V
Source: -32 mA @ 2.0 V
Handshaking Signals O_REQ output, O_ACK input, O_TRG output
Transfer Speed 40 MB/sec for DI and DO simultaneously (max.)
Programmable Digital Filter
Applicable Signals All input signals (including 32 DI signals, I_REQ, I_TRG and O_ACK)
Max. removable noise width (1 ~ 127) x 25 ns
Programmable Pulse Extender
Applicable Signals O_REQ
Pulse width (2 ~ 256) x 25 ns
Channels 3
Resolution 16-bit
Input Frequency 2.5 ~ 20 MHz
Timer 0 Clock source of DI
Timer 1 Clock source of DO
Timer 2 Base clock of Timer 0 and Timer 1
Sources O_ACK, I_REQ, Timer 0, Timer 1 and Timer 2
On Board FIFO
DI / DO 1 k DWORD (32-bit)
2 k DWORD (32-bit)
Size in Ring Buffer Mode 2 ~ 2 k DWORD (32-bit), DO only
Bus Type Universal PCI, 32-bit, 33 MHz
I/O Connector Female DB37 x 1
40-pin Box header x 1
Dimensions (L x W x D) 120 mm x 105 mm x 22 mm
Power Consumption 200 mA @ +5 V typical (output no load)
Operating Temperature 0 ~ 60 °C
Storage Temperature -20 ~ 70 °C
Humidity 5 ~ 85% RH, non-condensing

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