M35500 Mitsubishi, M35500 Datasheet - Page 9

• Manufacturer Part Number: M35500
• Description: FLD(VFD) CONTROLLER
• Manufacturer: Mitsubishi

RESET CIRCUIT
To reset the controller, the RESET pin should be held at a “L” level
for 2 s or more. Then the RESET pin is returned to an “H” level (the
power source voltage should be between 4.0 V and 5.5 V, and X
oscillation is stable), reset is released.
Make sure that the reset input voltage is 0.5 V or less for 4.0 V of
V
Fig. 10. Reset circuit example
CLOCK GENERATING CIRCUIT
Oscillating circuit is built up by connecting pins X
as possible and connecting a capacitor between pins X
V
When supplying a clock externally, input it to X
pin open.
Fig. 11. RC generating circuit
HANDLING OF UNUSED PINS
Handle unused pins as the follow.
Table. 2. Handling of unused pins
CC
SS
Segment
Digit
Analog input
.
.
Pin
X
I N
C
Open
Open
Connect to V
R E S E T
O S C
CC
or V
X
O U T
SS
IN
IN
pin and leave X
through a resistor.
and X
V
C C
IN
OUT
(X
OUT
as short
) and
0 V
0 V
OUT
IN
N o t e . R e s e t r e l e a s e v o l t a g e : V
Fig. 12. External clock input circuit
Handling
P o w e r o n
V
V
( N o t e )
E x t e r n a l o s c i l l a t i o n
c i r c u i t
0 . 2 V
C C
S S
X
C C
I N
C C
MITSUBISHI <DIGITAL ASSP>
= 4 . 0 V
M35500AFP/BGP
FLD(VFD) CONTROLLER
O p e n
X
O U T
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