Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

X9448YS24 Datasheet(PDF) 3 Page - Intersil Corporation

Part # X9448YS24
Description  Mixed Signal with 2-Wire Interface
Download  19 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

X9448YS24 Datasheet(HTML) 3 Page - Intersil Corporation

  X9448YS24 Datasheet HTML 1Page - Intersil Corporation X9448YS24 Datasheet HTML 2Page - Intersil Corporation X9448YS24 Datasheet HTML 3Page - Intersil Corporation X9448YS24 Datasheet HTML 4Page - Intersil Corporation X9448YS24 Datasheet HTML 5Page - Intersil Corporation X9448YS24 Datasheet HTML 6Page - Intersil Corporation X9448YS24 Datasheet HTML 7Page - Intersil Corporation X9448YS24 Datasheet HTML 8Page - Intersil Corporation X9448YS24 Datasheet HTML 9Page - Intersil Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 19 page
background image
3
FN8201.0
April 18, 2005
PIN NAMES
PRINCIPLES OF OPERATION
The X9448 is a highly integrated microcircuit incorpo-
rating two resistor arrays, two voltage comparators
and their associated registers and counters; and the
serial interface logic providing direct communication
between the host and the digitally-controlled potenti-
ometers and voltage comparators.
Serial Interface
The X9448 supports a bidirectional bus oriented proto-
col. 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 and pro-
vide the clock for both transmit and receive operations.
Therefore, the X9448 will be considered a slave
device in all applications.
Clock and Data Conventions
Data states on the SDA line can change only during
SCL LOW periods (tLOW). SDA state changes during
SCL HIGH are reserved for indicating start and stop
conditions.
Start Condition
All commands to the X9448 are preceded by the start
condition, which is a HIGH to LOW transition of SDA
while SCL is HIGH (tHIGH). The X9448 continuously
monitors the SDA and SCL lines for the start condition
and will not respond to any command until this condi-
tion is met.
Stop Condition
All communications must be terminated by a stop con-
dition, which is a LOW to HIGH transition of SDA while
SCL is HIGH.
Acknowledge
Acknowledge is a software convention used to provide
a positive handshake between the master and slave
devices on the bus to indicate the successful receipt of
data. The transmitting device, either the master or the
slave, will release the SDA bus after transmitting eight
bits. The master generates a ninth clock cycle and
during this period the receiver pulls the SDA line LOW
to acknowledge that it successfully received the eight
bits of data.
The X9448 will respond with an acknowledge after
recognition of a start condition and its slave address
and once again after successful receipt of the com-
mand byte. If the command is followed by a data byte
the X9448 will respond with a final acknowledge.
Array Description
The X9448 is comprised of two resistor arrays and
two voltage comparators. Each array contains 63 dis-
crete resistive segments that are connected in series.
The physical ends of each array are equivalent to the
fixed terminals of a mechanical potentiometer (VH
and VL inputs).
At both ends of each array and between each resistor
segment is a CMOS switch connected to the wiper
(VW) output. Within each individual array only one
switch may be turned on at a time. These switches are
controlled by a volatile wiper counter register (WCR).
The six bits of the WCR are decoded to select, and
enable, one of sixty-four switches.
The WCR may be written directly, or it can be changed
by transferring the contents of one of four associated
data registers into the WCR. These data registers and
the WCR can be read and written by the host system.
Symbol
Description
SCL
Serial Clock
SDA
Serial Data
A0 - A3
Device Address
VH0 - VH1,
VL0 -VL1
Potentiometers (terminal equivalent)
VW0 - VW1
Potentiometers (wiper equivalent)
VNI0, VNI1
Comparator Input Voltages
VOUT0, VOUT1
Buffered Comparator Outputs
WP
Hardware Write Protection
V+,V-
Analog and Voltage Comparator
Supplies
VCC
System/Digital Supply Voltage
VSS
System Ground
NC
No Connection
X9448


Similar Part No. - X9448YS24

ManufacturerPart #DatasheetDescription
logo
Xicor Inc.
X9448 XICOR-X9448 Datasheet
127Kb / 20P
   Mixed Signal with 2-Wire Interface
logo
Renesas Technology Corp
X9448 RENESAS-X9448 Datasheet
762Kb / 19P
   Mixed Signal with 2-Wire Interface Dual Digitally Controlled Potentiometer (XDCP?? & Voltage Comparator
logo
Xicor Inc.
X9448-2.7 XICOR-X9448-2.7 Datasheet
127Kb / 20P
   Mixed Signal with 2-Wire Interface
More results

Similar Description - X9448YS24

ManufacturerPart #DatasheetDescription
logo
Xicor Inc.
X9448 XICOR-X9448 Datasheet
127Kb / 20P
   Mixed Signal with 2-Wire Interface
logo
Intersil Corporation
X9440 INTERSIL-X9440 Datasheet
363Kb / 21P
   Mixed Signal with SPI Interface
logo
Renesas Technology Corp
X9448 RENESAS-X9448 Datasheet
762Kb / 19P
   Mixed Signal with 2-Wire Interface Dual Digitally Controlled Potentiometer (XDCP?? & Voltage Comparator
logo
Maxim Integrated Produc...
MAXQ2010 MAXIM-MAXQ2010 Datasheet
443Kb / 34P
   16-Bit Mixed-Signal Microcontroller with LCD Interface
Rev 1; 12/08
logo
Texas Instruments
MSPM0G3107 TI-MSPM0G3107 Datasheet
1Mb / 11P
[Old version datasheet]   MSPM0G310x Mixed-Signal Microcontrollers with CAN-FD Interface
FEBRUARY 2023
MSPM0G3507 TI-MSPM0G3507 Datasheet
1Mb / 11P
[Old version datasheet]   MSPM0G350x Mixed-Signal Microcontrollers With CAN-FD Interface
FEBRUARY 2023
MSPM0G3507 TI-MSPM0G3507_V02 Datasheet
2Mb / 96P
[Old version datasheet]   MSPM0G350x Mixed-Signal Microcontrollers With CAN-FD Interface
REVISED JUNE 2023
MSPM0G3507 TI-MSPM0G3507_V03 Datasheet
1Mb / 82P
[Old version datasheet]   MSPM0G350x Mixed-Signal Microcontrollers With CAN-FD Interface
REVISED OCTOBER 2023
MSPM0G3507 TI1-MSPM0G3507_V04 Datasheet
1Mb / 82P
[Old version datasheet]   MSPM0G350x Mixed-Signal Microcontrollers With CAN-FD Interface
REVISED OCTOBER 2023
MSPM0G3507 TI-MSPM0G3507_V01 Datasheet
1Mb / 25P
[Old version datasheet]   MSPM0G350x Mixed-Signal Microcontrollers With CAN-FD Interface
FEBRUARY 2023
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19


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