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HT1635A Datasheet(PDF) 4 Page - Holtek Semiconductor Inc |
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HT1635A Datasheet(HTML) 4 Page - Holtek Semiconductor Inc |
4 / 29 page Rev. 1.20 4 August 26, 2015 HT1635A/HT1635B D.C. Characteristics VDD=2.4V~5.5V; Ta=25°C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDD Operating Voltage — — 2.4 5 5.5 V IDD Operating Current 5V No load, LED on, On-chip RC oscillator — 0.3 0.6 mA ISTB Standby Current 5V No load, Power down mode — 1 2 μA VIL Input Low Voltage 5V DATA, WRB, RDB, SDA, SCL, CSB, OSC, SYNC 0 — 0.3VDD V VIH Input High Voltage 5V DATA, WRB, RDB, SDA, SCL, CSB, OSC, SYNC 0.7VDD — 5 V IOL1 OSC, SYNC, DATA, SDA Pins Sink Current 5V VOL=0.5V 18 25 — mA IOH1 OSC, SYNC, DATA Pins Source Current 5V VOH=4.5V -10 -13 — mA IOL2 ROW Sink Current 5V VOL=0.5V 10 13 — mA IOH2 ROW Source Current 5V VOH=4.5V -50 -70 — mA IOL3 COM Sink Current 5V VOL=0.5V 250 400 — mA IOH3 COM Source Current 5V VOH=4.5V -45 -60 — mA RPH Pull-high Resistor 5V DATA, WRB, RDB, CSB 18 27 40 kΩ A.C. Characteristics I2C serial bus VDD=2.4V~5.5V, Ta=25°C Symbol Parameter Condition VDD=2.4V to 5.5V VDD=3.0V to 5.5V Unit Min. Max. Min. Max. fSCL Clock Frequency — — 100 — 400 kHz tBUF Bus Free Time Time in which the bus must be free before a new transmission can start 4.7 — 1.3 — μs tHD: STA Start Condition Hold Time After this period, the first clock pulse is generated 4 — 0.6 — μs tLOW SCL Low Time — 4.7 — 1.3 — μs tHIGH SCL High Time — 4 — 0.6 — μs tSU: STA Start Condition Setup Time Only relevant for repeated START condition 4.7 — 0.6 — μs tHD: DAT Data Hold Time — 0 — 0 — ns tSU: DAT Data Setup Time — 250 — 100 — ns tR SDA and SCL Rise Time Note — 1 — 0.3 μs tF SDA and SCL Fall Time Note — 0.3 — 0.3 μs tSU: STO Stop Condition Setup Time — 4 — 0.6 — μs tAA Output Valid from Clock — — 3.5 — 0.9 μs tSP Input Filter Time Constant (SDA and SCL Pins) Noise suppression time — 20 — 20 ns Note:Theseparametersareperiodicallysampledbutnot100%tested. |
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Similar Description - HT1635A |
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