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Rohm Semiconductor Electronic Components Datasheet

RCM2234R-A Datasheet

20 characters x 2 lines COG module

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RCM2234R-A pdf
Liquid Crystal Displays
RCM2234R-A / B
20 characters × 2 lines COG module
RCM2234R-A / B
The RCM2234R-A / B is a reflective TN type liquid crystal module with a built-in controller / driver LSI and a display
capacity of 20 characters × 2 lines.
zApplications
Printers, Copiers, Facsimiles, etc
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zFeatures
(1) 5×7 dot character matrix with cursor.
(2) Interfaces with 4-bit, 8-bit MPUs.
(3) Displays up to 240 characters and special symbols.
(4) Custom character patterns are displayed with the character RAM.
(5) Abundant instruction set including clear display, cursor on/off, and character blinking.
(6) Compact and lightweight for easy assembly to the host instrument.
(7) Operable on single 5V power supply.
(8) Low power consumption.
zExternal dimensions (Unit : mm) (Viewing direction : 6 : 00)
0.7±0.7
±5°
6.0MAX.
(0.5)
6.0MAX.
0.7±0.7
0.7±0.7
1.0MAX.
0.3MAX.
24.9±0.3
0.7±0.7
81.0±0.3
(PITCH1.8×14)25.2±0.3
Over-coating resin
10.6±0.5
1.5MAX.
2.0MAX.
3.75±0.3
3.2
0.6 0.05
0.5
(73.5)
79.0MIN.
Vdieirwe(6icnt:gi0o0n)
1.1±0.1
2.7±0.3
1.1±0.1
Dot detail
1/8


Rohm Semiconductor Electronic Components Datasheet

RCM2234R-A Datasheet

20 characters x 2 lines COG module

No Preview Available !

RCM2234R-A pdf
Liquid Crystal Displays
zBlock diagram
VR
RCM2234R-A / B
COM
1 to 8
VVV RRE DD G
S
S
L
C
D
D
D
S/
W
B0 ot B7
N
D
I
SEG1 to 100
20characters×2lines
COM
9 to 16
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Fig.1
Note 1. (VLCDI-V5)V is applied to LCD as driving voltage. Optimal driving voltage changes by viewing angle or temperature,
therefore adjusting V5 voltage in the condition that LCD is mounted on board is necessary.
2. Considering variation of power voltage and optimal driving voltage, V5 voltage should be adjustable.
3. VR : 10kto 20k(variable)
zPin assignments
Pin No.
1
2
3
4
5
6
7
8
symbol
VSS
VLCDI
VDD
RS
R/W
E
DB0
DB1
Pin No.
9
10
11
12
13
14
15
symbol
DB2
DB3
DB4
DB5
DB6
DB7
GND
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol Min. Max. Unit
Power voltage (1)
VDD 0.3 7.0
V
Power voltage (2)
VLCDI
0.3 12.0
V
Input voltage
VIN
0.3
VDD+0.3
V
Operation temperature
Topr
0
50 °C
Storage temperature
Tstg 20 70 °C
Note 1.Use of LSI above the absolute maximum ratings may cause permanent LSI damage.
2.All voltage values are shown using VSS=0V as a reference.
3.Power supply must be retained in the relationship of VDD-VSS.
Notes
Input terminal
2/8


Part Number RCM2234R-A
Description 20 characters x 2 lines COG module
Maker Rohm
Total Page 9 Pages
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RCM2234R-A pdf
RCM2234R-A Datasheet PDF
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