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RCM1990U-A Datasheet(PDF) 3 Page - Rohm |
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RCM1990U-A Datasheet(HTML) 3 Page - Rohm |
3 / 9 page RCM1990U-A Liquid crystal displays 3/8 Absolute maximum ratings (Ta =25°C) Input voltage Operating temperature Storage temperature Limits −0.3 to +7.0 −0.3 to +7.0 −0.3 to VDD+0.3 0 to +50 −10 to +60 Symbol VDD VDD-VEE VIN Topr Tstg Unit V V V °C °C Logic circuit LCD drive Power supply voltage Parameter Electrical characteristics (Ta =25°C, VDD=5.0V±0.25V) High level input voltage Low level input voltage High level output voltage Low level output voltage Recommended LCD drive voltage Current dissipation Parameter IOH =−0.4mA IOH =+0.4mA Ta =25°C fCL =1MHz, fM=70Hz Conditions Unit V V V V V mA Max. − 1.5 − 0.4 − 3.0 Typ. − − − − 5.0 1.0 Min. 3.5 − 4.6 − − − VIH VIL VOH VOL VLCD IDD Symbol AC characteristics (Ta =25°C, VDD=5.0) Shift frequency High level lock width Low level lock width Data setup time Clock setup time 1 Clock setup time 2 Data hold time FLM setup time FLM hold time Clock rise / fall time Output delay time AC conversion signal Parameter fCL tCWH tCWL tSU tSL tLS tDH tFDS tFDH tct tpd fM Symbol CL2 CL1, CL2 CL2 DI CL2 CL1 DI FLM FLM CL1, CL2 DO M − 470 470 120 220 220 120 120 120 − − − Min. − − − − − − − − − − − 70 Typ. 1 − − − − − − − − 50 250 − Max. MHz ns ns ns ns ns ns ns ns ns ns Hz Unit Applicable terminal |
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