Philips PM2519 - HEF4518 B DUAL BCD COUNTER

10-2
HEF4518B DUAL BCD COUNTER
CTRDIV 10
Functional diagram
PINNING
CPoa, CPog
CP1q, CP7g
MRa, MRp
Opa to O34
Oop to O38
clock inputs (L to H triggered)
clock inputs (H to L triggered)
master reset inputs
outputs
outputs
HEF4518B
ST4465
840713
Pinning diagram
FUNCTION TABLE
counter advances
counter advances
no change
no change
no change
no change
Op to O73 = LOW
H = HIGH state (the more positive vo!tage)
L = LOW state (the less positive voltage)
X = state is immaterial
= positive-going transition
= negative-going transition