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X9221A Datasheet(PDF) 10 Page - Intersil Corporation |
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X9221A Datasheet(HTML) 10 Page - Intersil Corporation |
10 / 15 page 10 FN8163.1 September 14, 2005 D.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.) Notes: (1) Absolute Linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a potentiometer. (2) Relative Linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potenti- ometer. It is a measure of the error in step size. (3) MI = RTOT/63 or (VH/RH–VL/RL)/63, single pot ENDURANCE AND DATA RETENTION CAPACITANCE POWER-UP TIMING Notes: (5) This parameter is periodically sampled and not 100% tested. (6) tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated. These parameters are periodically sampled and not 100% tested. Power Up Requirements (Power up sequencing can affect correct recall of the wiper registers) The preferred power-on sequence is as follows: First VCC, then the potentiometer pins. It is suggested that VCC reach 90% of its final value before power is applied to the potentiometer pins. The VCC ramp rate specification should be met, and any glitches or slope changes in the VCC line should be held to <100mV if possible. Also, VCC should not reverse polarity by more than 0.5V. Symbol Parameter Limits Test Conditions Min. Typ. Max. Unit lCC Supply Current (Active) 3 mA fSCL = 100kHz, SDA = Open, Other Inputs = VSS ISB VCC Current (Standby) 200 500 µA SCL = SDA = VCC, Addr. = VSS ILI Input Leakage Current 10 µA VIN = VSS to VCC ILO Output Leakage Current 10 µA VOUT = VSS to VCC VIH Input HIGH Voltage 2 VCC + 1 V VIL Input LOW Voltage -1 0.8 V VOL Output LOW Voltage 0.4 V IOL = 3mA Parameter Min. Unit Minimum endurance 100,000 Data changes per bit per register Data retention 100 years Symbol Parameter Max. Unit Test Conditions CI/O (5) Input/output capacitance (SDA) 8 pF VI/O = 0V CIN (5) Input capacitance (A0, A1, A2, A3 and SCL) 6 pF VIN = 0V Symbol Parameter Min. Max. Unit tPUR (6) Power-up to initiation of read operation 1 ms tPUW (6) Power-up to initiation of write operation 5 ms tRVCC VCC Power-up ramp rate 0.2 50 V/msec X9221A |
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