DS1673 Datasheet, PDF (18/18 Pages) Dallas Semiconductor – Portable System Controller

DS1673
NOTES:
1. All voltages are referenced to ground.
2. Logic 1 voltages are specified at V_CC = 3.0V, V_OH = V_CC for capacitive loads. Excludes RST pin
3. Logic 0 voltages are specified at V_CC = 3.0V, V_OL = GND for capacitive loads.
4. I_CCA is specified with outputs open, CS set to a logic 1, SCLK = 500kHz, oscillator enabled, and
D/A converter enabled.
5. I_ADC is specified with CS, V_CCO open and I/O, SCLK at logic 0. ADC is enabled.
6. I_CCS is specified with CS, V_CCO open and I/O, SCLK at logic 0. ADC is disabled.
7. CS has a 40kW pulldown resistor to ground.
8. Measured at V_IH = 2.0V or V_IL = 0.8V and 10ns maximum rise and fall time.
9. Measured at V_OH = 2.4V or V_OL = 0.4V.
10. Load capacitance = 25pF.
11. I_CCO = 100mA, V_CC > V_CCTP.
12. V_CCO switchover from V_CC to V_BAT occurs when V_CC drops below the lower of V_CCSW and V_BAT.
13. Current from V_CC input pin to V_CCO output pin.
14. Current from V_BAT input pin to V_CCO output pin.
15. Time base is generated by very accurate crystal oscillator. Accuracy of this time period is based on
the crystal that is used. A typical crystal with a specified load capacitance of 6pF will provide an
accuracy within ±100ppm over the 0°C to +70°C temperature range.
16. If the EOSC bit in the Control Register is set to a logic 1, t_RPU is equal to 250ms plus the startup
time of the crystal oscillator.
PACKAGE INFORMATION
(For the latest package outline information, go to www.maxim-ic.com/DallasPackInfo.)
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