Electronic Components Datasheet Search |
|
X9258TS24IZ Datasheet(PDF) 3 Page - Intersil Corporation |
|
X9258TS24IZ Datasheet(HTML) 3 Page - Intersil Corporation |
3 / 20 page 3 FN8168.4 August 30, 2006 PIN DESCRIPTIONS Host Interface Pins SERIAL CLOCK (SCL) The SCL input is used to clock data into and out of the X9258. SERIAL DATA (SDA) SDA is a bidirectional pin used to transfer data into and out of the device. It is an open drain output and may be wire-ORed with any number of open drain or open collector outputs. An open drain output requires the use of a pull-up resistor. For selecting typical values, refer to the guidelines for calculating typical values on the bus pull-up resistors graph. DEVICE ADDRESS (A0 - A3) The Address inputs are used to set the least significant 4 bits of the 8-bit slave address. A match in the slave address serial data stream must be made with the address input in order to initiate communication with the X9258. A maximum of 16 devices may occupy the 2-wire serial bus. Potentiometer Pins VH/RH (VH0/RH0 - VH3/RH3), VL/RL (VL0/RL0 - VL3/RL3) The VH/RH and VL/RL inputs are equivalent to the terminal connections on either end of a mechanical potentiometer. VW/RW (VW0/RW0 - VW3/RW3) The wiper outputs are equivalent to the wiper output of a mechanical potentiometer. Hardware Write Protect Input (WP) The WP pin when low prevents nonvolatile writes to the Data Registers. Analog Supplies V+, V- The Analog Supplies V+, V- are the supply voltages for the DCP analog section. PIN CONFIGURATION PIN NAMES PRINCIPLES OF OPERATION The X9258 is a highly integrated microcircuit incorporating four resistor arrays and their associated registers and counters and the serial interface logic providing direct communication between the host and the DCP potentiometers. Serial Interface—2-Wire The X9258 supports a bidirectional bus oriented protocol. The protocol defines any device that sends data onto the bus as a transmitter and the receiving device as the receiver. The device controlling the transfer is a master and the device being controlled is the slave. The master will always initiate data transfers Symbol Description SCL Serial Clock SDA Serial Data A0-A3 Device Address VH0/RH0 - VH3/RH3, VL0/RL0 - VL3/RL3 Potentiometer Pins (terminal equivalent) VW0/RW0 - VW3/RW3 Potentiometers Pins (wiper equivalent) WP Hardware Write Protection V+,V- Analog Supplies VCC System Supply Voltage VSS System Ground NC No Connection (Allowed) NC A0 VW3/RW3 V+ VCC VL0/RL0 1 2 3 4 5 6 7 8 9 10 24 23 22 21 20 19 18 17 16 15 A3 SCL VL2/RL2 VH2/RH2 VW2/RW2 V– VSS VW1/RW1 VH1/RH1 VL1/RL1 SOIC/TSSOP X9258 VH3/RH3 14 13 11 12 VL3/RL3 VH0/RH0 VW0/RW0 A2 A1 SDA WP X9258 |
Similar Part No. - X9258TS24IZ |
|
Similar Description - X9258TS24IZ |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |