AX6108 Datasheet, PDF (12/31 Pages) List of Unclassifed Manufacturers – Dot Matrix Liquid Crystal Graphic Display Column Driver

ASLIC MICROELECTRONICS CORP.
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Page 12
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AX6018 Dot Matrix Liquid Crystal Graphic Display Column Driver
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Terminal Functions
Terminal
Name
Vcc
GND
VEE1
VEE2
V1L, V1R
V2L, V2R
V3L, V3R
V4L, V4R
CS1
CS2
CS3
E
R/W
D/I
Number of
Terminals
2
2
8
3
1
1
1
I/O Connected to
Functions
Power
supply
Power supply for internal logic.
Recommended voltage is :
GND = 0 V
Vcc = 5 V ¡ Ó10%
Power
supply
Power supply for liquid crystal display drive circuit.
Recommended power supply voltage is Vcc - Vee = 8 to 17.0
V. Connect the same power supply to VEE1 and VEE2. VEE1 and
VEE2 are not connected each other in the LSI.
Power
supply
Power supply for liquid crystal display drive.
Apply the voltage specified depending on liquid crystals within
the limit of VEE through Vcc.
V1L (V1R), V2L (V2R) : Selection level
V3L (V3R), V4L (V4R) : Non-selection level
Power supplies connected with V1L and V1R (V2L & V2R,
V3L & V3R, V4L & V4R) should have the same voltages.
Chip selection.
Data can be input or output when the terminals are in the
I
MPU following conditions :
Terminal Name
CS1
CS2 CS3
Condition
L
L
H
Enable.
At write (R/W = Low) : Data of DB0 to DB7 is latched at the
I MPU
fall of E.
At read (R/W = High) : Data appears at DB0 to DB7 while E
is at high level.
Read/write.
R/W = High : Data appears at DB0 to DB7 and can be
read by the CPU.
I MPU
When E = high, CS1, CS2 = low and CS3
= high.
R/W = Low : DB0 to db7 can accept at fall of E when
CS1, CS2 = low and CS3 = high.
Data/instruction.
D/I = High : Indicates that the data of DB0 to DB7 is
I MPU
display data.
D/I = Low : Indicates that the data of DB0 to DB7 is
display control data.