Keithley KPCI3140 DocSpec free download

File name KPCI3140_DocSpec.pdf

KPCI-3140 Specs Features Summary Digital I/O Port Lines per port Type Interrupt on Bit Change Detection SSR Drive A, B, C 8 bidirectional Level-sensitive No Yes D 8 bidirectional Level-sensitive Yes Yes Counter/Timers Channels Resolution Maximum Clock Frequency External Clock Counter/Timer 8 16 20MHz Yes Interval Timers 4 24 20MHz No Digital I/O Ports A, B, C Port D Number of lines 8 bidirectional per port 8 bidirectional Inputs Input type Level-sensitive Level-sensitive High-level input voltage 2.0V minimum 2.0V minimum Low-level input voltage 0.8V maximum 0.8V maximum Minimum pulse width Not applicable 66ns high and low* Outputs Output driver high voltage 2.4V minimum (IOH = -15mA) 2.4V minimum (IOH = -15mA) Output driver low voltage 0.5V maximum (IOL = 12mA) 0.5V minimum (IOL = 12mA) *The minimum pulse width applies only to interrupt-on-change detection. Pulses less than the minimum may not be detected as a change. Counter/Timer Number of counter/timer channels 8 Clock Inputs Threshold voltage 0.98V Input sensitivity