Electronic Components Datasheet Search |
|
X9521 Datasheet(PDF) 2 Page - Xicor Inc. |
|
X9521 Datasheet(HTML) 2 Page - Xicor Inc. |
2 / 26 page REV 1.1.9 1/30/03 Characteristics subject to change without notice. 2 of 26 www.xicor.com X9521 – Preliminary Information PIN ASSIGNMENT Pin CSP Name Function 1B3 RH2 Connection to end of resistor array for (the 256 Tap) DCP 2. 2A3 Rw2 Connection to terminal equivalent to the “Wiper” of a mechanical potentiometer for DCP 2. 3A4 RL2 Connection to other end of resistor array for (the 256 Tap) DCP2. 7C4 WP Write Protect Control Pin. WP pin is a TTL level compatible input. When held HIGH, Write Protection is enabled. In the enabled state, this pin prevents all nonvolatile “write” opera- tions. Also, when the Write Protection is enabled, and the device Block Lock feature is active (i.e. the Block Lock bits are NOT [0,0]), then no “write” (volatile or nonvolatile) operations can be performed in the device (including the wiper position of any of the integrated Digitally Controlled Potentiometers (DCPs). The WP pin uses an internal “pull-down” resistor, thus if left floating the write protection feature is disabled. 8 D4 SCL Serial Clock. This is a TTL level compatible input pin used to control the serial bus timing for data input and output. 9E4 SDA Serial Data. SDA is a bidirectional TTL level compatible pin used to transfer data into and out of the device. The SDA pin input buffer is always active (not gated). This pin requires an external pull up resistor. 10 E1 Vss Ground. 11 E3 RL1 Connection to other end of resistor for (the 100 Tap) DCP 1. 12 E2 Rw1 Connection to terminal equivalent to the “Wiper” of a mechanical potentiometer for DCP 1 13 D1 RH1 Connection to end of resistor array for (the 100 Tap) DCP 1. 20 A2 Vcc Supply Voltage. 4, 5, 6, 14, 15, 16, 17, 18, 19 A1, B1, B2, B4, C1, C2, C3, D2, D3 NC No Connect PIN CONFIGURATION NC RL2 NC 3 4 Vcc SCL NC NC RW1 RH1 7 8 NC VSS 10 RL1 RH2 1 18 19 17 20 14 15 13 16 12 11 NC 6 RW2 2 SDA 9 NC 5 WP NC NC NOT TO SCALE 2 3 4 A B C D E Top View – Bumps Down 1 CSP 20 Pin TSSOP RL2 RW2 RH2 NC WP NC SCL NC SDA RL1 NC V1/Vcc NC NC NC NC RH1 NC VSS RW1 |
Similar Part No. - X9521 |
|
Similar Description - X9521 |
|
|
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 |