S6A0072 データシートの表示（PDF） - Samsung
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S6A0072 Datasheet PDF : 32 Pages
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16COM/40SEG DOT MATRIX LCD CONTROLLER & DRIVER
S6A0072
PIN DESCRIPTION
Pin
Input/Output
Name
Description
Interface
VDD
Power
Power supply & for logical circuit (+3V, +5V)
LCD bias pin
Power supply
VSS (GND)
V2, V3, V5
S1 - S40
C1 - C16
EXTCLK
EXT_INT
RS
R/W
E
DB0-DB3
DB4-DB7
RESETB
TEST
Output
Input
Input
Input
Input
Input
Input
Input/Output
Input
Output
Segment output
Common output
External clock
Input
External/internal
oscillator clock
select
Register select
Read/write
Read/write
enable
Data bus 0 - 7
Reset
Test pin
0V (GND)
Bias voltage level for LCD driving
Segment signal output for LCD driving
Common signal output for LCD driving
When using external clock, used as clock
input pin. When using internal oscillator,
connect to VDD or VSS.
When EXT_INT = "High", external clock is
used. When "Low", internal oscillator is used.
Used as register selection input.
When RS = "High", Data register is selected.
When RS = "Low", Instruction register is
selected.
Used as read/write selection input.
When R/W = "High", read operation.
When R/W = "Low", write operation.
Used as read/write enable signal.
When 8-bit bus mode, used as low order
bi-directional data bus.
During 4-bit bus mode open these pins.
When 8-bit bus mode, used as high order bi-
directional data bus. In case of 4-bit bus
mode, used as both high and low order.
DB7 is used for busy flag output during read
instruction operation.
If it is necessary to initialize the system by
hardware, force "Low", level signal to this
terminal about 1.2ms.
Internal oscillator test pin. Open this pin.
LCD
LCD
External clock
VDD/VSS
MPU
Open
5
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