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数据搜索系统，热门电子元器件搜索 |
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HT9B95 数据表(PDF) 9 Page - Holtek Semiconductor Inc |
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HT9B95 数据表(HTML) 9 Page - Holtek Semiconductor Inc |
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9 / 32 page  Rev. 1.10 9 November 25, 2015 HT9B95A/B/G Symbol Parameter Test condition Min. Typ. Max. Unit VDD condition fLCD1 LCD Frame Frequency 3.3V Ta=25°C, internal oscillator is used, LCD frame frequency = 80 Hz 72 80 88 Hz Ta=25°C, internal oscillator is used, LCD frame frequency = 71 Hz 63.9 71 78.1 Ta=25°C, internal oscillator is used, LCD frame frequency = 64 Hz 57.6 64 70.4 Ta=25°C, internal oscillator is used, LCD frame frequency = 50Hz 45 50 55 fLCD2 LCD Frame Frequency 2.4~ 5.5V Ta=-40 to 85°C, internal oscillator is used, LCD frame frequency = 80 Hz 56 80 104 Hz Ta=-40 to 85°C, internal oscillator is used, LCD frame frequency = 71 Hz 49.7 71 92.3 Ta=-40 to 85°C, internal oscillator is used, LCD frame frequency = 64 Hz 44.8 64 83.2 Ta=-40 to 85°C, internal oscillator is used, LCD frame frequency = 50Hz 35.2 50 65 VPOR VDD Start Voltage to ensure Poewr-on Reset — — — — 100 mV RRVDD VDD Rise Rate to ensure Power-on Reset — — 0.05 — — V/ms tPOR Minimum Time for VDD to remain at VPOR to ensure Power-on Reset — — 10 — — ms I2C Interface Characteristics Unless otherwise specified, VSS = 0 V; VDD = 2.4V to 5.5V; Ta=-40 to +85°C Symbol Parameter Condition Min. Max. Unit fSCL Clock frequency — — 400 kHZ tBUF bus free time Time in which the bus must be free before a new transmission can start 1.3 — μs tHD: STA Start condition hold time After this period, the first clock pulse is generated. 0.6 — μs tLOW SCL Low time — 1.3 — μs tHIGH SCL High time — 0.6 — μs tSU: STA Start condition setup time Only relevant for repeated START condition. 0.6 — μs tHD: DAT Data hold time — 0 — ns tSU: DAT Data setup time — 100 — ns tR SDA and SCL rise time Note — 0.3 μs tF SDA and SCL fall time Note — 0.3 μs tSU: STO Stop condition set-up time — 0.6 — μs tAA Output Valid from Clock — — 0.9 μs tSP Input Filter Time Constant (SDA and SCL Pins) Noise suppression time — 50 ns Note:Theseparametersareperiodicallysampledbutnot100%tested. |
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