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PDF RCM2234R-B Data sheet ( Hoja de datos )

Número de pieza RCM2234R-B
Descripción 20 characters x 2 lines COG module
Fabricantes ROHM Semiconductor 
Logotipo ROHM Semiconductor Logotipo



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No Preview Available ! RCM2234R-B Hoja de datos, Descripción, Manual

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
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RCM2234R-B pdf
Liquid Crystal Displays
zTiming characteristics
Write operation
RS
R/W
E
D0 to D7
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D0 to D7
vIH
vIL
tAS
vIH
vIL
tr
vIH
vIL
tAH
tWH tWL
tf
tCYC
tDS
vIH
vIL
tDH
vIH vIH
vIL write data vIL
tACC
tCH
vOH vOH
vOL read data vOL
Fig.6
RCM2234R-A / B
Item
Symbol
Min.
Address set up time
120
tAS
120
Address hold time
tAH 20
"E" pulse width H level
tWH 500
"E" pulse width L level
tWL 500
Cycle time
tCYC 1000
Data setup time
tDS 200
Data hold time
tDH 20
Output disable time
tACC
Output data hold time
tCH 40
"E" rise / fall time
tr, tf
Numbers above mentioned are driver IC's number as a single unit.
In designing, please set the timing with sufficient margin.
Typ.
Max.
95
10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Condition
at write
at read
zReset Circuit
The busy flag indicating internal operating state is H level in the period of 2ms after Reset operation starting.
External input is not available in this state. After 2ms passes or confirms the busy flag is L level the instruction
can be acceptable.
If the power supply conditions are not met, the integrated reset circuit will not operate properly. Execute
initialization by instruction.
Item
Power rise time
Power OFF time
Symbol
trDD
tOFF
Min.
Typ.
Max.
Unit
0.1 10 ms
1 − − ms
Condition
Note : The power OFF time specifies the time during which the power is off when the instantaneous power failure occurs or power ON/OFF repeated.
VDD
0.2V
0.9VDD
trDD
0.2V
0.2V
tOFF
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