Document
LCD Module Specification
Model: LG122321-BMDWH6V
Table of Contents
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COVER & CONTENTS ······················· 1 BASIC SPECIFICATIONS ····················· 2 ABSOLUTE MAXIMUM RATINGS ················· 3 ELECTRICAL CHARACTERISTICS ··············· 4 MPU INTERFACE ························· 7 OPERATING PRINCIPLES & METHODES ··········· 9 INSTRUCTION CODES ······················ 11 POWER ON INITIALIZATION ··················· 16 DISPLAY DATA RAM ADDRESS MAP ············· 17 CONNECTION WITH 8051 FAMILY MPU ············ 18 ELECTRO—OPTICAL CHARACTERISTICS ·········· 19 DIMENSIONAL OUTLINE ····················· 11 LCD MODULE NUMBERING SYSTEM ············· 22 PRECAUTIONS FOR USE OF LCD MODULE ········· 23
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LG122321-BMDWH6V
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1. BASIC SPECIFICATIONS
1.1 Features Display Format LCD Mode : 122 X 32 Dots : STN-Blue-Negative-Transmissive 1/32 Duty, 1/7 Bias 6:00 LED, white color 84.0(W) X 44.0(H) X 13.5(T) 60.5(W) X 18.5(H) 0.40 X 0.45 0.44 X 0.49 40 SED1520DAA
Driving Method : Viewing Direction : Backlight : Outline Dimension : Viewing Area : Dot Size : Dot Pitch : Weight : Controller :
mm mm mm mm g
1.2 Block Diagram
COM
C0 | C15 S0 --- S60 SEG
LCD PANEL 122 x 32 dots
S61 --- S121 SEG
C16 | C31
COM
S0 --- S60 SED1520DAA or Eqv. A0 /RD(E) /WR(R/W) DB0~DB7 /RST CL /CS1 /CS2 V SS V DD VO Power Circuit To LSI
S0 --- S60 SED1520DAA or Eqv.
LEDA LEDK LED Backlight
Free Datasheet http://www.Datasheet4U.com
LG122321-BMDWH6V
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1.4 Terminal Functions
Pin No. 1 2 3 4 5 6 7 Symbol VSS VDD VO A0 /CS1 /CS2 CL Level 0V +5V -H/L L L -Ground Power supply for logic Operating voltage for LCD (contrast adjusting) H: Display data L: Instruction code Chip selection for IC1, active “L” Chip selection for IC2, active “L” External clock input (2kHz) Enable signal for 68 series MPU: Read data when E is “H”, write data at falling edge of E. /RD signal for 80 series MPU: Read data when /RD is “L”. R/W signal for 68 series MPU: R/W=“H” : Read; R/W=“L”: Write. /WR signal for 80 series MPU: Write data at rising edge of /WR. Data Bit0 Data Bit1 Data Bit2 Data Bit3 Data Bit4 Data Bit5 Data Bit6 Data Bit7 Reset and interface type selection terminal. For 68 series MPU: reset at rising edge, /RST=”H” after reset; For 80 series MPU: reset at falling edge, /RST=”L” after reset. Power supply for LED backlight Power supply for LED backlight Function
8
E(/RD)
--
9
R/W(/WR)
--
10 11 12 13 14 15 16 17
DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7
H/L H/L H/L H/L H/L H/L H/L H/L
18
/RST
H/L
19 20
LEDA LEDK
+5V 0V
2. ABSOLUTE MAXIMUM RATINGS
Item Supply Voltage(Logic) Supply Voltage(LCD) Input Voltage Operating Temp. Storage Temp. Symbol VDD-VSS VDD-VO VI Topr Tstg Min. -0.3 -0.3 -0.3 -20 -30 Max. 7.0 13.5 VDD+0.3 70 80 Unit V V V ℃ ℃
Free Datasheet http://www.Datasheet4U.com
LG122321-BMDWH6V
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3. ELECTRICAL CHARACTERISTICS
3.1 DC Characteristics Item Supply Voltage (Logic) Supply Voltage (LCD Drive) Input High Volta.