Logic Probe

Logic Probes/Logic Pulser
Logic Probe with Pulser having min. specifications as :
Input impedance 120 kilo-ohm
Pulse Width Min. 10μS
Power Supply Range ...5 - 15V DC
Maximum Input Signal Frequency ..50MHz
Operating supply range ... 4V DC Minimum, 18V DC Maximum.
Features:
Probe for troubleshooting digital circuits
Shall be Used directly to inject a signal into the logic circuits without removing the IC or breaking the circuits.
TTL: Logic "1" (Hi LED) >3.0±0.25V Logic "0" (Lo LED) >0.75±0.25V
CMOS : Logic "1" (Hi LED) >60%Vcc±5% Logic "0" (Lo LED) ...>15%Vcc±5%