Decal; Control Panel Ic Material - Daewoo DVG-8500N Service Manual

CONTROL PANEL IC MATERIAL

DECAL

SW 1
1
SW 2
2
SW 3
3
SW 4
4
D 5
OUT
D 6
IN
IC 7
CLK 8
STB 9
KEY 10
1
KEY 11
2
KEY 12
3
KEY 13
4
PIN FUNCTION DESCRIPTION
Symbol
Pin No.
6 D
IN
5 D
OUT
9 STB
8 CLK
52 OSC
15 to 26 Seg /KS to
1 1
Seg /KS
12 12
44 to 37 Grid to Grid
1 6
27 to 32 Seg /Grid to
13 16
35 to 36 Seg /Grid
20 9
50 to 46 LED to LED
1 5
10 to 13 Key to Key
1 4
1 to 4 SW to SW
1 4
14, 33, 45 V
DD
51 V
SS
34 V
EE
7 IC
Pin Name
Data input Inputs serial data at rising edge of shift clock, starting from lower
bit.
Data output Outputs serial data at falling edge of shift clock, starting from
lower bit. This is N-ch open-drain output pin.
Strobe Initializes serial interface at rising or falling edge to make
PD16311 waiting for reception of command. Data input after
STB has fallen is processed as command. While command data
is processed, current processing is stopped, and serial interface
is initialized. While STB is high, CLK is ignored.
Clock input Reads serial data at rising edge, and outputs data at falling edge.
Oscillator pin Connect resistor for determining oscillation frequency to this pin.
High-voltage output Segment output pins (Dual function as key source)
(segment)
High-voltage output (grid) Grid output pins
High-voltage output These pins are selectable for segment or grid output.
(segment/grid)
LED output CMOS output. +20 mA max.
Key data input Data input to these pins is latched at end of display cycle.
Switch input These pins constitute 4-bit general-purpose input port.
Logic power 5 V 10 %
Logic ground Connect this pin to GND of system.
Pull-down level V 35 V max.
DD
Internally connected Be sure to leave this pin open (this pin is at V
39 Grid
6
38 Grid
7
37 Grid
8
36 Seg /Grid
20 9
35 Seg /Grid
19 10
34 V
EE
33 V
DD
32 Seg /Grid
18 11
31 Seg /Grid
17 12
30 Seg /Grid
16 13
29 Seg /Grid
15 14
28 Seg /Grid
14 15
27 Seg /Grid
13 16
Description
level).
DD
4-13