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R2043T Datasheet(PDF) 5 Page - RICOH electronics devices division |
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R2043T Datasheet(HTML) 5 Page - RICOH electronics devices division |
5 / 48 page R2043K/T 12345 Rev.2.05 - 5 - DC ELECTRICAL CHARACTERISTICS R2043K/T (Unless otherwise specified: VSS=0V, VDD=3.0V, Topt=-40 to +85 °C, Crystal oscillator 32768Hz,CL=7pF,R1=50kΩ) Symbol Item Pin Name Conditions Min. Typ. Max. Unit VIH “H” Input Voltage 0.8x VDD 5.5 VIL “L” Input Voltage CE, SCLK, SI VDD=1.7 to 5.5V -0.3 0.2x VDD V IOH “H” Output Current SO VOH=VDD-0.5V -0.5 mA IOL1 /INTR 2.0 IOL2 “L” Output Current SO, 32KOUT VOL=0.4V 0.5 mA IIL Input Leakage Current SI, SCLK VI=5.5V or VSS VDD=5.5V -1.0 1.0 µA RDNCE Pull-down Resistance CE 40 120 400 k Ω IOZ1 SO VO=5.5V or VSS VDD=5.5V -1 1 IOZ2 /INTR VO=5.5V VDD=5.5V -1 1 µA IOZ3 Output Off-state Current 32KOUT VO=5.5V VDD=5.5V -1 1 IDD Time Keeping Current VDD VDD=3V, CE= OPEN Output = OPEN 32KOUT=OFF CGout=CDout=0pF *1) 0.45 1.00 µA VDETH Supply Voltage Monitoring Voltage “H” VDD Topt=-30 to +70 °C 1.45 1.60 1.75 V VDETL Supply Voltage Monitoring Voltage “L” VDD Topt=-30 to +70 °C 1.15 1.30 1.45 V *1) For time keeping current when outputting 32.768kHz from the 32KOUT pin, see “P.43 Typical Characteristics”. For time keeping current when CGOUT, CDOUT is not equal to 0pF, see “P.28 Adjustment of Oscillation frequency”. |
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