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X9319US8IZ Datasheet(PDF) 5 Page - Intersil Corporation |
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X9319US8IZ Datasheet(HTML) 5 Page - Intersil Corporation |
5 / 10 page 5 FN8185.2 September 26, 2006 A.C. OPERATING CHARACTERISTICS (VCC = 5V ±10%, TA = Full Operating Temperature Range unless otherwise stated) POWER-UP AND DOWN REQUIREMENTS In order to prevent unwanted tap position changes, or an inadvertant store, bring the CS and INC high before or con- currently with the VCC pin on powerup. The potentiometer voltages must be applied after this sequence is completed. During power-up, the data sheet parameters for the DCP do not fully apply until 1 millisecond after VCC reaches its final value. The VCC ramp spec is always in effect. A.C. TIMING Symbol Parameter Limits Unit Min. Typ.(4) Max. tCl CS to INC setup 100 ns tlD(5) INC HIGH to U/D change 100 ns tDI(5) U/D to INC setup 1 µs tlL INC LOW period 1 µs tlH INC HIGH period 1 µs tlC INC inactive to CS inactive 1 µs tCPHS CS deselect time (STORE) 20 ms tCPHNS(5) CS deselect time (NO STORE) 1 µs tIW(5) INC to RW change 100 500 µs tCYC INC cycle time 4 µs tR, tF(5) INC input rise and fall time 500 µs tPU(5) Power-up to wiper stable 500 µs tR VCC(5) VCC power-up rate 0.2 50 V/ms CS INC U/D RW tCI tIL tIH tCYC tID tDI tIW MI (3) tIC tCPHS tF tR 10% 90% 90% tCPHNS X9319 |
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