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X9514W Datasheet(PDF) 2 Page - Xicor Inc. |
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X9514W Datasheet(HTML) 2 Page - Xicor Inc. |
2 / 11 page X9514 2 PIN DESCRIPTIONS VH and VL The high (VH) and low (VL) terminals of the X9514 are equivalent to the fixed terminals of a mechanical potenti- ometer. The minimum voltage is –5V and the maximum is +5V. It should be noted that the terminology of VL and VH references the relative position of the terminal in relation to wiper movement direction selected by the PU and PD inputs and not the voltage potential on the terminal. PU The debounced PU input is for incrementing the wiper position. An on-chip pull-up holds the PU input HIGH. A switch closure to ground or a LOW logic level will, after a debounce time, move the wiper to the next adjacent higher tap position. PD The debounced PD input is for decrementing the wiper position. An on-chip pull-up holds the PD input HIGH. A switch closure to ground or a LOW logic level will, after a debounce time, move the wiper to the next adjacent lower tap position. ASE The debounced ASE (AUTOSTORE enable) pin can be in one of two states: VIL – AUTOSTORE is enabled. When VCC powers- down an automatic store cycle takes place. VIH – AUTOSTORE is disabled. A LOW to HIGH will initiate a manual store operation. This is for a user who wishes to connect a push button switch to this pin. For every valid push, the X9514 will store the current wiper position to the E2PROM. PIN CONFIGURATION PIN NAMES Symbol Description VH High Terminal VW Wiper Terminal VL Low Terminal VSS Ground VCC Supply Voltage PU Push Up Input PD Push Down Input ASE AUTOSTORE Enable Input NC No Connect 6487 PGM T01.2 VCC ASE VL VW PU PD VH VSS 1 2 3 4 8 7 6 5 X9514 DIP/SOIC VCC ASE NC NC NC VL VW 6487 ILL F02.2 PU PD NC NC NC VH VSS 1 2 3 4 5 6 7 14 13 12 11 10 9 8 X9514 TSSOP TAP POSITION 6487 ILL F04 0 4 8 12 16 20 24 28 31 -20 -40 -43.5 0 -60 Typical Attenuation Characteristics (dB) |
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