поискавой системы для электроныых деталей |
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ISL22419WFU8Z датащи(PDF) 11 Page - Intersil Corporation |
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ISL22419WFU8Z датащи(HTML) 11 Page - Intersil Corporation |
11 / 13 page 11 FN6311.0 June 28, 2006 FIGURE 12. THREE BYTE WRITE SEQUENCE FIGURE 13. THREE BYTE READ SEQUENCE Applications Information Communicating with ISL22419 Communication with ISL22419 proceeds using SPI interface through the ACR (address 11b), IVR (address 00b) and WR (address 00b) registers. The wiper of the potentiometer is controlled by the WR register. Writes and reads can be made directly to this register to control and monitor the wiper position without any non-volatile memory changes. This is done by setting MSB bit (ACR[7]) at address 11b to 1. The non-volatile IVR stores the power up value of the wiper. IVR is accessible when MSB bit (ACR[7]) at address 11b is set to 0. Writing a new value to the IVR register will set a new power up position for the wiper. Also, writing to this register will load the same value into the WR as the IVR. Reading from the IVR will not change the WR, if its contents are different. The typical application diagram is shown in Figure 14. For proper operation adding 0.1µF decoupling ceramic capacitor to VCC is recommended. The capacitor value may vary based on expected noise frequency of the design. 0 1 0 1 0 0 I3 I2 I1 I0 0 0 R1 R0 SCK SDI 0 D6 D5D4 D3 D2 D1D0 CS 00 0 0 101 00 I3 I2 I1 I0 0 0 R1 R0 SCK SDI CS 00 SDO 0 D6 D5D4 D3 D2 D1D0 Don’t Care 0 ISL22419 |
Аналогичный номер детали - ISL22419WFU8Z |
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Аналогичное описание - ISL22419WFU8Z |
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