Marantz SR4023 Service Manual page 35

� � TERMINAL DESCRIPTION TERMINAL DESCRIPTION
IC81 : NJU3430F
N o . S Y M B O L
5 7
4 9
4 8 V
5 0 O S C
5 1 O S C
5 4 C L K
5 3
5 5
5 6
5 2 R S T
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 M K
5 8
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
S-808xxC Series
Block Diagrams
IC95 : S80842CNY-X
1. Nch Open-drain Output Products
*1. Parasitic diode
2. CMOS Output Products
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
-
F D P
V
D D
C R O s c i l l a t i o n T e r m i n a l
I
1
External R and C connect to these terminals.
(Target f
O
2
Serial Clock Input Terminal
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
T h e d a ta i n p u t i s M S B f i rs t.
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
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)
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 .
VDD
*1
V
REF
VSS
F U N C T I O N
: V
: V
- 2 0 V t o V - 4 5 V
D D
= 3 6 0 k H z )
O S C
: (00)
: Unfixed
: 1 6 - d i g i t
: 8/16 Dury
−
+
Figure 1
43
NJU3430 NJU3430
= + 3 . 0 t o 5 . 5 V
D D
= 0 V
S S
H
Rev.3.2
OUT
*1
_00