PDF《液晶显示模块使用手册》

液晶显示模块使用手册 版本: 1.

0 Model :WS320240C LCD MODULE WS320240C Version:1.0 Fep-15-2007

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32 ? PHYSICAL DATA Item Contents Unit LCD type FSTN --- LCD duty 1/240 --- LCD bias 1/16 --- Viewing direction 6:00 o'

clock Module size (W*H*T) 143.0 * 100.8 * 10.5MAX mm Viewing area (W*H) 105.0 * 80.0 mm Number of dots

320 *

240 dots Dot size (W*H) 0.28 * 0.28 mm Dot pitch (W*H) 0.30 * 0.30 mm ? EXTERNAL DIMENSIONS LCD MODULE WS320240C Version:1.0 Fep-15-2007

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32 ? BLOCK DIAGRAM ? OPERATING INSTRUCTIONS Input signal Function J1 (RA8835 Controller) Pin No Symbol Description

1 A0 Data Type Selection

2 /CS Chip select Signal

3 DB0 Data BUS

4 DB1 Data BUS

5 DB2 Data BUS

6 DB3 Data BUS

7 DB4 Data BUS

8 DB5 Data BUS

9 DB6 Data BUS

10 DB7 Data BUS

11 /RD Read Signal

12 /WR Write Signal

13 /RST Reset Signal

14 BLK Supply voltage for LED

15 BLA Supply voltage for LED

16 GND GND

17 VEE Power out (-23V),LCD Power supply

18 VCC Supply voltage for logic

19 V0 Supply voltage for LCD Contrast adjustment

20 SEL1 H:6800,L:8080 LCD MODULE WS320240C Version:1.0 Fep-15-2007

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32 ? ABSOLUTE MAXIMUM RATINGS ( Ta = 25°C ) Parameter Symbol Min Max Unit Supply voltage for logic VDD -0.3 7.0 V Supply voltage for LCD VDD - VO -0.3

30 V Input voltage VI -0.5 VDD+0.5 V Operating temperature TOP

0 50 °C Storage temperature TST -20

60 °C ? ELECTRICAL CHARACTERISTICS ( VDD = +5V±10% , VSS = 0V, Ta = 25°C ) DC Characteristics Parameter Symbol Min Typ Max Unit Supply voltage for logic VDD 4.5 5.0 5.5 V Supply current for logic IDD --- 11.9

20 mA Operating voltage for LCD VDD - VO 21.0 23.4 26.0 V Supply voltage for LED light VF --- 5.0 --- V Supply current for LED light IF ---

85 --- mA RA8835 Timing Diagrams z System bus READ/WRITE timing I (8080) Signal Symbol Parameter Rating Unit Condition min max A0,CS tAH8 Address hold time

10 --- ns tAW8 Address setup time

30 --- ns WR,RD tCYC System cycle time (1) --- ns CL =

100 tCC Strobe pulsewidth

220 --- ns pF tDS8 Data setup time

120 --- ns D0 to D7 tDH8 Data hold time

10 --- ns tACC8 RD access time ---

120 ns tOH8 Output disable time

10 50 ns Note: t CYC =2t C + t CC + t CEA +

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t ACV + 245: memory control/movement control commands: = 4t C + t CC + 30: all other commands: A0 \CS \WR,\RD tAW8 tCC tCYC tAH8 tDH8 tOH8 tACC8 D0?D7 (WRITE) tDS8 D0?D7 (READ) LCD MODULE WS320240C Version:1.0 Fep-15-2007

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32 z System bus READ/WRITE timing II (6800 ) Signal Symbol Parameter Rating Unit Condition min max tAH6 Address hold time

10 --- ns A0, CS tAW6 Address setup time

30 --- ns R/W tCYC6 System cycle time (1) --- ns tCC Strobe pulsewidth

220 --- ns CL = 100+1TTL tDS6 Data setup time

120 --- ns pF D0 to D7 tDH6 Data hold time

10 --- ns tACC6 RD access time ---

120 ns tOH6 Output disable time

10 50 ns E tEW Enable pulse width

220 --- ns Note: (1) t CYC6 = 2t C + t EW + t CEA +

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t ACV + 245: memory control/movement control commands: = 4tC + tEW + 30: all other commands: 1. tCYC6 means a cycle of (CS.E) not E alone. E R/W A0,CS D0?D7 (WRITE) D0?D7 (READ) tCYC6 tDH6 tOH6 tACC6 tAH6 tDS6 tAW6 tEW LCD MODULE WS320240C Version:1.0 Fep-15-2007

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32 z Display memory READ timing Signal Symbol Parameter Rating Unit Condition min max EXT ?0 tC Clock cycle

100 --- ns VCE tW VCE high level pulse width tc-40 --- ns tCE VCE low level pulse width 2tc-40 --- ns VA0 tCYR Read cycle time (1) --- ns to VA15 tASC VCE address setup time (fall) tc-45 --- ns CL = 100pF tAHC VCE address hold time (fall) 2tc-40 --- ns +1TTL VR/W tRCS VCE read cycle setup time (fall) tc-45 --- ns tRCH VCE read cycle hold time (fall) tc/2-35 tACV Address access time --- (2) ns VD0 tCEA VCE access time --- (3) ns to VD7 tOH2 Output data hold time