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SG12832B ( 128 DOTS X 32 DOTS ) om
FEATURES
+5 V POWER SUPPLY 1/32 DUTY CYCLE
BUILT-IN CONTROLLER (HT1670 OR EQUIVALENT)
8-BIT PARALLEL INTERFACE 4.2 V LED FORWARD VOLTAGE
INTERFACE PIN CONNECTIONS
NO.
1 2 3 4 5 6 7~10 11 12 13
w
w
at .D w
VSS VDD LIGHT /CS /WR /RD
aS
ee h
4U t
.c
MECHANICAL DATA
ITEM
Module Size (W x H x T) Viewing Area ( W x H ) Active Area ( W x H ) Dot Size ( W x H ) Dot Pitch ( W x H )
DIMENSIONS
73.0 x 37.0 x 10.8 63.0 x 17.7 58.84 x 14.68 0.42 x 0.42 0.46 x 0.46
UNIT
mm mm mm mm mm
ABSOLUTE MAXIMUM RATINGS
ITEM
Supply Voltage For Logic Supply Voltage For LCD Drive Input Voltage
SYMBOL LEVEL
0V 5V
FUNCTION
Power Supply Ground Power Supply Voltage LED Power Supply ( + ) Chip Singal Write Singal Read Signal Data Bus Line
Time base or watchdog timer overflow flag 2kHz Or 4 kHz Tone Frequency Output Pair . 2kHz Or 4 kHz Tone Frequency Output Pair .
SYMBOL
VDD-VSS VDD-Vo VI
MIN.
4.1V
L L L H/L L -
ELECTRICAL CHARACTERISTICS
ITEM SYMBOL
VDD-VSS VDD-Vo IDD
DB0~DB3 /CLOCK BZ+ BZ-
Supply Voltage For Logic Supply Voltage For LCD Supply Current Input
EXTERNAL DIMENSIONS
w
w
w
t a .D
S a
Output Voltage
Voltage
e h
"HIGH" Level "LOW" Level
U t4 e
VIH VIL VOH VOL
.c
0
0
Vss
m o
TYP. MIN.
4.5 4.4 2.2 2.4 -
MAX.
7 12 VDD
UNIT
V V V
CONDITION -
TYP.
5 4.8 3 -
MAX. UNIT
5.5 5.2 4.5 VDD 0.6 0.4 V V mA V V V V
VDD=5V Ta=25 VDD=5V
-
"HIGH" Level "LOW" Level
w
w
w
.D
a
aS t
ee h
4U t
om .c
SG12832B ( 8 CHARACTERS X 2 LINES )
TIMING CHARACTERISTICS
ITEM 4-Bit Interface Reset Pulse Width /WR Input Pulse Width /RD Input Pulse Width Rise/Fall Time Serial Data Clock Width Setup Time for DATA to WR , RD Clock Width Hold Time for DATA to WR , RD Clock Width Setup Time for CS to WR , RD Clock Width Hold Time for CS to WR , RD Clock Width SYMBOL MIN. 1.67 3.34 TYP. 250 120 120 120 100 100 MAX. UNIT. ns us us ns ns ns ns ns
/CS Write Read
tR , tF tsu th tsu1 th1
BLOCK DIAGRAM

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