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BU9794AGUW-E2 Datasheet(PDF) 3 Page - Rohm |
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BU9794AGUW-E2 Datasheet(HTML) 3 Page - Rohm |
3 / 15 page Technical Note 3/14 BU9795AKV,BU9795AFV,BU9795AGUW,BU9794AKV,BU97950FUV www.rohm.com 2011.03 - Rev.A © 2011 ROHM Co., Ltd. All rights reserved. ● Electrical characteristics <BU9795AKV/FV/GUW> DC Characteristics (VDD=2.5~5.5V, VSS=0V, Ta=-40~85℃, unless otherwise specified) Parameter Symbol Limits Unit Condition Min. Typ. Max. “H” level input voltage VIH 0.7VDD - VDD V SD, SCL, CSB “L” level input voltage VIL VSS - 0.3VDD V SD, SCL, CSB “H” level input current IIH - - 1 µA SD, SCL, CSB “L” level input current IIL -1 - - µA SD, SCL, CSB LCD Driver on resistance SEG RON - 3.5 - kΩ Iload=±10µA COM RON - 3.5 - kΩ VLCD supply voltage VLCD 0 - VDD -2.4 V VDD-VLCD 2.4V Standby current Ist - - 5 µA Display off, Oscillator off Power consumption 1 IDD1 - 12.5 30 µA VDD=3.3[V], Ta=25℃, Power save mode1, FR=70Hz 1/3 bias, Frame inverse Power consumption 2 IDD2 - 20 40 µA VDD=3.3[V], Ta=25℃, Normal mode, FR=80Hz 1/3 bias, Line inverse Oscillation Characteristics (VDD=2.5~5.5V,VSS=0V, Ta=-40~85℃) Parameter Symbol Limits Unit Condition Min. Typ. Max. Frame frequency fCLK 56 80 104 Hz FR = 80Hz setting Frame frequency1 fCLK1 70 80 90 Hz VDD=3.5V, 25℃ MPU interface Characteristics(VDD=2.5V~5.5V,VSS=0V, Ta=-40~85℃) Parameter Symbol Limits Unit Condition Min. Typ. Max. Input rise time tr - - 80 ns Input fall time tf - - 80 ns SCL cycle time tSCYC 400 - - ns “H” SCL pulse width tSHW 100 - - ns “L” SCL pulse width tSLW 100 - - ns SD setup time tSDS 20 - - ns SD hold time tSDH 50 - - ns CSB setup time tCSS 50 - - ns CSB hold time tCSH 50 - - ns “H” CSB pulse width tCHW 50 - - ns Fig.1 Interface Timing (BU9795AKV/FV/GUW) tCHW CSB SCL SD tCSH tSCYC tSLW tSHW tSDS tSDH tf tr tCSS |
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