Marantz PS3001 Service Manual page 46

IC81 : NJU3430FG1
R S T
R ESET
SI
CS 8bits
Shift
C L K
R e g .
R S
Timing
Gen.
OSC
1 C R
OSC .
OSC
2
V
D D
V
S S
V
F DP
N o . S Y M B O L
5 7
4 9
4 8
5 0
5 1
5 4
5 3
5 5
5 6
5 2
6 1 t o 6 4 ,
S
1
1 t o 3 1
3 2 t o 4 7 T
1
6 0
5 9
5 8
Instruction
D ec oder
Line
Address
State Address
Reg.
Read
Display
Address
Control
I/O
V - P o w e r S o u r c e
D D
V - G N D
S S
V F D D r i v i n g P o w e r S o u r s e
V -
F D P
V
C R O s c i l l a t i o n T e r m i n a l
O S C I
1
External R and C connect to these terminals.
(Target f
O S C O
2
Serial Clock Input Terminal
C L K I The serial data input synchronizing the rise edge of this
terminal.
C h i p S e l e c t T e r m i n a l
C S I W h e n t h e C S t e r m i n a l i s " H " t h e s e r i a l d a t a i n p u t i s n o t
a v a i l a b l e .
S e r i a l D a t a I n p u t T e r m i n a l
S I I
The d ata input is MSB first.
Register Selection Signal Input Terminal
R S I RS="0" : Instruction Register
R S = " 1 " : D a t a R e g i s t e r
R e s e t T e r m i n a l R S T = " L " : R e s e t
- E a c h A d d r e s s
- E a c h R A M D a t a
R S T I
- D i s p l a y D i g i t s
- C o n t r a s t C o n t r o l
-All Display Off
-All Outputs are "L "
Segment Output Terminals (Internal Pull-down
to S O
3 5
R e s i s t a n c e )
to T O Timing Output Terminals (Internal Pull-down Resistance)
1 6
M K
1
O Icon Output Terminals (Internal Pull-down Resistance)
M K
2
Output Port Terminal
P O
1
T h i s t e r m i n a l i s s u i t a b l e f o r L E D .
M K R AM
16x2 bit
Counter
C G R AM
35x8 bit
C G R O M
Selector 8,400bit
D D R A M
16x8 bit
Counter
F U N C T I O N
- 2 0 V t o V - 4 5 V
D D D D
= 3 6 0 k H z )
O S C
60
Icon
D r i v e r
Segment
D r i v e r
Port
D r i v e r
Timing
D r i v e r
: V = + 3 . 0 t o 5 . 5 V
D D
: V = 0 V
S S
: (00)
H
: Unfixed
: 1 6 - d i g i t
: 8/16 Dury
M K M K
~
1 2
S S
~
1 35
P
1
T T
~
1 1 6