HD61202U Datasheet, PDF (7/33 Pages) Hitachi Semiconductor – Dot Matrix Liquid Crystal GraphicDisplay Column Driver

HD61202U
Terminal Functions
Terminal
Name
V_CC
GND
Number of
Terminals I/O
2
V_EE1
2
V_EE2
V1L, V1R 8
V2L, V2R
V3L, V3R
V4L, V4R
$
3
I
$
CS3
Connected to Functions
Power supply Power supply for internal logic.
Recommended voltage is:
Power supply
GND = 0V
V_CC = 2.7 to 5.5V
Power supply for liquid crystal display drive circuit.
Power supply
Recommended power supply voltage is V_CC–V_EE = 8 to
16V. Connect the same power supply to V_EE1 and V_EE2.
V_EE1 and V_EE2 are not connected each other in the LSI.
Power supply for liquid crystal display drive.
Apply the voltage specified depending on liquid crystals
within the limit of V_EE through V_CC.
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.
MPU
Chip selection.
Data can be input or output when the terminals are in
the following conditions:
Terminal name $
$
CS3
Condition
L
L
H
E
1
R/W
1
D/I
1
I
MPU
I
MPU
I
MPU
Enable.
At write (R/W = low): Data of DB0 to DB7 is latched at
the 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 MPU.
When E = high, $, $ = low and
CS3 = high.
R/W = Low: DB0 to DB7 can accept at fall of E when
$, $ = low and CS3 = high.
Data/instruction.
D/I = High: Indicates that the data of DB0 to DB7 is
display data.
D/I = Low: Indicates that the data of DB0 to DB7 is
display control data.
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