Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

X9279UBI-2.7 Datasheet(PDF) 7 Page - Xicor Inc.

Part # X9279UBI-2.7
Description  Single Digitally-Controlled (XDCP) Potentiometer
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  XICOR [Xicor Inc.]
Direct Link  http://www.xicor.com
Logo XICOR - Xicor Inc.

X9279UBI-2.7 Datasheet(HTML) 7 Page - Xicor Inc.

Back Button X9279UBI-2.7 Datasheet HTML 3Page - Xicor Inc. X9279UBI-2.7 Datasheet HTML 4Page - Xicor Inc. X9279UBI-2.7 Datasheet HTML 5Page - Xicor Inc. X9279UBI-2.7 Datasheet HTML 6Page - Xicor Inc. X9279UBI-2.7 Datasheet HTML 7Page - Xicor Inc. X9279UBI-2.7 Datasheet HTML 8Page - Xicor Inc. X9279UBI-2.7 Datasheet HTML 9Page - Xicor Inc. X9279UBI-2.7 Datasheet HTML 10Page - Xicor Inc. X9279UBI-2.7 Datasheet HTML 11Page - Xicor Inc. Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 24 page
background image
X9279
Characteristics subject to change without notice.
7 of 24
REV 1.1.7 2/6/03
www.xicor.com
Acknowledge Polling
The disabling of the inputs, during the internal
nonvolatile write operation, can be used to take
advantage of the typical 5ms EEPROM write cycle
time. Once the stop condition is issued to indicate the
end of the nonvolatile write command the X9279
initiates the internal write cycle. ACK polling, Flow 1,
can be initiated immediately. This involves issuing the
start condition followed by the device slave address. If
the X9279 is still busy with the write operation no ACK
will be returned. If the X9279 has completed the write
operation an ACK will be returned and the master can
then proceed with the next operation.
FLOW 1: ACK Polling Sequence
INSTRUCTION AND REGISTER DESCRIPTION
Device Addressing: Identification Byte ( ID and A)
The first byte sent to the X9279 from the host, following
a CS going HIGH to LOW, is called the Identification
byte. The most significant four bits of the slave address
are a device type identifier. The ID[3:0] bits is the
device ID for the X9279; this is fixed as 0101[B] (refer
to Table 1).
The A[2:0] bits in the ID byte is the internal slave
address. The physical device address is defined by the
state of the A2-A0 input pins. The slave address is
externally specified by the user. The X9279 compares
the serial data stream with the address input state; a
successful compare of both address bits is required for
the X9279 to successfully continue the command
sequence. Only the device which slave address
matches the incoming device address sent by the
master executes the instruction. The A2-A0 inputs can
be actively driven by CMOS input signals or tied to VCC
or VSS.
Instruction Byte (I)
The next byte sent to the X9279 contains the
instruction and register pointer information. The three
most significant bits are used provide the instruction
opcode I [2:0]. The RB and RA bits point to one of the
four Data Registers. P0 is the POT selection; since the
X9279 is single POT, the P0=0. The format is shown in
Table 2.
Register Bank Selection (RB, RA, P1, P0)
There are 16 registers organized into four banks. Bank
0 is the default bank of registers. Only Bank 0 registers
can be used for Data Register to Wiper Counter
Register operations.
Banks 1, 2, and 3 are additional banks of registers (12
total) that can be used for 2-Wire write and read
operations. The Data Registers in Banks 1, 2, and 3
cannot be used for direct read/write operations
between the Wiper Counter Register.
Nonvolatile Write
Command Completed
EnterACK Polling
Issue
START
Issue Slave
Address
ACK
Returned?
Further
Operation?
Issue
Instruction
Issue STOP
No
Yes
Yes
Proceed
Issue STOP
No
Proceed


Similar Part No. - X9279UBI-2.7

ManufacturerPart #DatasheetDescription
logo
Intersil Corporation
X9279UV14 INTERSIL-X9279UV14 Datasheet
364Kb / 22P
   Single Supply/Low Power/256-Tap/2-Wire Bus
logo
Renesas Technology Corp
X9279UV14 RENESAS-X9279UV14 Datasheet
403Kb / 18P
   Single Supply/Low Power/256-Tap/2-Wire Bus
September 23, 2009
logo
Intersil Corporation
X9279UV14-2.7 INTERSIL-X9279UV14-2.7 Datasheet
364Kb / 22P
   Single Supply/Low Power/256-Tap/2-Wire Bus
logo
Renesas Technology Corp
X9279UV14-2.7 RENESAS-X9279UV14-2.7 Datasheet
403Kb / 18P
   Single Supply/Low Power/256-Tap/2-Wire Bus
September 23, 2009
logo
Intersil Corporation
X9279UV14I INTERSIL-X9279UV14I Datasheet
364Kb / 22P
   Single Supply/Low Power/256-Tap/2-Wire Bus
More results

Similar Description - X9279UBI-2.7

ManufacturerPart #DatasheetDescription
logo
Intersil Corporation
X93156 INTERSIL-X93156_07 Datasheet
190Kb / 7P
   Single Digitally Controlled Potentiometer (XDCP??
ISL22316 INTERSIL-ISL22316 Datasheet
546Kb / 15P
   Single Digitally Controlled Potentiometer XDCP
X9119 INTERSIL-X9119_08 Datasheet
287Kb / 17P
   Single Digitally-Controlled (XDCP?? Potentiometer
X9279 INTERSIL-X9279_09 Datasheet
437Kb / 18P
   Single Digitally-Controlled (XDCP?? Potentiometer
logo
Xilinx, Inc
X9119 XILINX-X9119 Datasheet
125Kb / 22P
   Single Digitally-Controlled (XDCP ??) Potentiometer
logo
Intersil Corporation
X9421 INTERSIL-X9421 Datasheet
367Kb / 21P
   Single Digitally Controlled (XDCP) Potentiometer
logo
Xicor Inc.
X9421 XICOR-X9421 Datasheet
117Kb / 21P
   Single Digitally Controlled (XDCP) Potentiometer
logo
Intersil Corporation
X9429 INTERSIL-X9429_08 Datasheet
323Kb / 20P
   Single Digitally Controlled Potentiometer(XDCP??
X9271 INTERSIL-X9271_11 Datasheet
673Kb / 22P
   Single, Digitally Controlled (XDCP?? Potentiometer
ISL95810 INTERSIL-ISL95810 Datasheet
1Mb / 13P
   Single Digitally Controlled Potentiometer (XDCP)
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24


Datasheet Download

Go To PDF Page


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


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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