[DAQ-CARD] ACL-8454
조회 : 1,252 | 12-10-24 12:57
관리자

  • Two (Four) 8254 programmable interval timer
  • Total six (twelve) 16-bit down counters / timers
  • 8 independent counters
  • Two 32-bit timers
  • Flexible clock source and gate control setting
  • Internal periodic and external interrupt source
  • 8-bit digital outputs and 16-bit digital inputs
  • 9 IRQ level selectable (IRQ3 ~ IRQ15), partition as dual interrupt system
  • 37-pin D-sub type connector
 
제품설명
The ACL-8454 is a general purpose timer/counter and digital I/O card for PC/AT or compatibles. It uses the most popular 82C54 timer / counter chip for event counting, pulse measurement, frequency measurement, and pulse generation. In addition, 8 digital outputs and up to 16 digital inputs are supported on this card.
On the ACL-8454, two 84C54 chips are on board and up to four 84C54 chips can be supported. It provides at least six and up to twelve 16-bit down counter. Each counter can be configured as a different clock sources and gate control by the jumper selection.
 
 
 
제품사양
  
Programmable Counter
  • Type of counter: Intel 8254 or equivalent
  • Counter mode: Down (Binary or BCD)
  • Max. input frequency: 8 MHz
  • CLK period: 125 ns min.
  • Counters: 4 ( or 8) independent 16-bit down counters
  • Timerrs: 4 ( or 8) independent 16-bit down counters
  • Input low voltage: -0.5V min., 0.8V max.
  • Input high voltage: 2.0V min., VCC +0.5V max.
  • Output low voltage: 0.45V max.
  • Output high voltage: 2.4V max.
  • Base frequency: 4 MHz
  • Frequency stability: +100 PPM
 
Digital Input / Output
  • Number of DO channels: 8
  • Number of DI channels: 8 (up to 16)
  • Electricity characteristics: All inputs and outputs are TTL/ compatible
 
General Specifications
  • Connector: 37-pin D-type female
  • I/O port address: 8 address
  • Interrupt level: (Dual Interrupt)
    • IRQ 3, 5, 6, 7, 9
    • IRQ 10, 11, 12, 15
  • Operating temperature: 0줩 ~ 60줩C
  • Storage temperature: -20줩 ~ 80줩C
  • Humidity: 0~95%, non-condensing
  • Power consumption:
    • +5V @ 230 mA typical
      280 mA max.
  • Dimensions: 162mm x 105mm