제품소개

제품소개

cPCI-7248/7249R

ㆍ▷ 48-CH DIO & Timer/Counter Cards

ㆍ▷ PICMG 2.0 Rev 2.1

ㆍ▷ 48-CH digital TTL/DTL input/output

ㆍ▷ Emulates 4/2/1 industry standard 8255 PPI (mode 0)

Manual

Data sheet

Features
■3U Eurocard form factor, CompactPCI compliant
    (PICMG 2.0 R2.1)
■48-CH digital TTL inputs/outputs
■Emulates 4/2/1 industry standard 8255 PPI (mode 0)
■Buffered circuits for higher driving capability
■Ports are independently configurable as input or output
■External latch signal available for digital inputs
■ Output status read back
■Known power-up states
■Onboard 8254 timer/counter chip
■ 1-CH 16-bit event counter to generate event interrupt
■1-CH 32-bit timer to generate watchdog timer interrupt
■ Multiple programmable interrupt sources
■+12 V and +5 V power available on the connector
■Onboard resettable fuses for power output protection
■Rear I/O available on cPCI-7249R

Specification & Introduction
 Digital I/O
■ Number of channels: 48 inputs/outputs
■ Compatibility: 5 V/TTL
■ Power-on states:
     pull-high, pull-low, floating (programmable)
■ Digital logic levels
    • Input high voltage: 2-5.25 V
    • Input low voltage: 0-0.8 V
    • Output high voltage: 2.4 V minimum
    • Output low voltage: 0.5 V maximum
■ Output driving capacity
    • Source current: 15 mA
    • Sink current: 24 mA
■ External digital input latch available on cPCI-7249R
■ Data transfers: programmed I/O
 Interrupt
■ Interrupt #0 sources
    • P1C0
    • P1C3
    • 16-bit event counter
■ Interrupt #1 sources
    • P2C0
    • P2C3
    • 32-bit timer (based on 2 MHz internal clock)
 General Specifications
■ I/O connector : One 100-pin SCSI-II female
■ Operating temperature: 0˚C to 60˚C
■ Storage temperature: -20˚C to 80˚C
■ Relative humidity: 5% to 95%, non-condensing
■ Power requirements
    cPCI-7248
        470 mA typical
    cPCI-7249R
        700 mA typica
■ Dimensions (not including connectors)
    160 mm x 100 mm

Ordering Information
■cPCI-7248
    48-CH DIO & Timer/Counter Card
■cPCI-7249R
    48-CH DIO & Timer/Counter Card with Rear I/O