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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PC97307 датащи(PDF) 183 Page - National Semiconductor (TI) |
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PC97307 датащи(HTML) 183 Page - National Semiconductor (TI) |
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183 / 218 page  183 Device Description www.national.com 13.1.4 Power Consumption Under Recommended Operating Conditions TABLE 13-4. Power Consumption 13.2 DC CHARACTERISTICS OF PINS, BY GROUP The following tables list the DC characteristics of all device pins described in Section 1.2. The pin list preceeding each table lists the device pins to which the table applies. 13.2.1 Group 1 Pin List: A15-0, AEN, ASTRXB, CTS2,1, DACK3-0, DCD2,1, DSKCHG, DSR2,1, ID3-0, INDEX, IRRX2,1, MR, RD, RDATA, SIN2,1, TC, TRK0, WP, WR, XDRD TABLE 13-5. DC Characteristics of Group 1 Pins a. Do not permit VCCH to ramp down at a rate exceeding 1 V/msec. If it does, it may reset the Valid RAM and Time (VRT) bit (bit 7) of the RTC Control Register D (CRD) at offset 0Dh of logical device 2. a. Not tested. Guaranteed by design. Symbol Parameter Conditions Min Typical Max Unit ICC VDD Average Main Supply Current a VIL = 0.5 V VIH = 2.4 V No Load 32 50 mA ICCSB VDD Quiescent Main Supply Current in Low Power Mode VIL = VSS VIH = VDD No Load 1.3 1.7 mA ICCH VCCH RTC/APC (Logical Device 2) Help Supply Current VCCH = 5 V ±10% 2mA IBAT VBAT Battery Supply Current VBAT = 3 V 2 µA Symbol Parameter Conditions Min Max Units VIH Input High Voltage 2.0 VDD a V VIL Input Low Voltage −0.5 a 0.8 V IIL Input Leakage Current VIN = VDD 10 µA VIN = VSS −10 µA VH Input Hysteresis 250 mV |
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