6
1
OUTLINE
6
OUTLINE
Chapter
1
Input equivalent circuit
A signal is inputted to the signal input circuit by short-circuiting or opening the
input terminal and the COM terminal. Short-circuiting is effected by means of a
contact (such as a relay or a switch) or a noncontact (such as a transistor or an
open-collector TTL).
relay
TTL open collector
output
*
Open OFF
Short
ON
Vcc
←
inside
Approx.
COM
push
switch
+5V
1
outside
→
M252B
IN
Short-circuited when IN is ‘H’
toggle
switch
transistor
IN
Ic=6mA
Point
Summary of Contents for M525B
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