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BU9795AKV Datasheet(PDF) 4 Page - Rohm |
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BU9795AKV Datasheet(HTML) 4 Page - Rohm |
4 / 15 page Technical Note 4/14 BU9795AKV,BU9795AFV,BU9795AGUW,BU9794AKV,BU97950FUV www.rohm.com 2011.03 - Rev.A © 2011 ROHM Co., Ltd. All rights reserved. <BU9794AKV> DC Characteristics (VDD=2.5~5.5V, VLCD=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 0.8VDD - VDD V SD,SCL,CSB “L” level input voltage VIL VSS - 0.2VDD 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 Standby current Ist - - 5 µA Display off, Oscillation off Power consumption 1 IDD - 5 15 µA VDD=3.3V, VLCD=5V, Ta=25℃ Power save mode1, FR=70Hz 1/3 bias, Frame inverse Power consumption 2 ILCD - 10 20 µA VDD=3.3V, VLCD=5V, Ta=25℃ Power save mode1, FR=70Hz 1/3 bias, Frame inverse Oscillation Characteristics (VDD=2.5~5.5V, VLCD=2.5~5.5V, VSS=0V, Ta=-40~85℃, unless otherwise specified) Parameter Symbol Limits Unit Condition Min. Typ. Max. Frame frequency fCLK 68 80 92 Hz FR = 80Hz setting, VDD=3.3V MPU interface Characteristics (VDD=2.5~5.5V, VLCD=2.5~5.5V, VSS=0V, Ta=-40~85℃, unless otherwise specified) 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 time tCHW 50 - - ns Fig.2 Interface Timing (BU9794AKV) CSB SCL SD tCSH tSCYC tSLW tSHW tSDS tSDH tf tr tCSS tCHW |
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