전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

DS3903 데이터시트(PDF) 10 Page - Maxim Integrated Products

부품명 DS3903
상세설명  Triple 128-Position Nonvolatile Digital Potentiometer
Download  11 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  MAXIM [Maxim Integrated Products]
홈페이지  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS3903 데이터시트(HTML) 10 Page - Maxim Integrated Products

Back Button DS3903 Datasheet HTML 3Page - Maxim Integrated Products DS3903 Datasheet HTML 4Page - Maxim Integrated Products DS3903 Datasheet HTML 5Page - Maxim Integrated Products DS3903 Datasheet HTML 6Page - Maxim Integrated Products DS3903 Datasheet HTML 7Page - Maxim Integrated Products DS3903 Datasheet HTML 8Page - Maxim Integrated Products DS3903 Datasheet HTML 9Page - Maxim Integrated Products DS3903 Datasheet HTML 10Page - Maxim Integrated Products DS3903 Datasheet HTML 11Page - Maxim Integrated Products  
Zoom Inzoom in Zoom Outzoom out
 10 / 11 page
background image
Triple 128-Position Nonvolatile
Digital Potentiometer
10
_____________________________________________________________________
The following bus protocol has been defined:
Data transfer can be initiated only when the bus is not
busy.
During data transfer, the data line must remain stable
whenever the clock line is high. Changes in the data
line while the clock line is high are interpreted as con-
trol signals.
Accordingly, the following bus conditions have been
defined:
Bus Not Busy: Both data and clock lines remain high.
Start Data Transfer: A change in the state of the data
line from high to low while the clock is high defines a
start condition.
Stop Data Transfer: A change in the state of the data
line from low to high while the clock line is high defines
the stop condition.
Data Valid: The state of the data line represents valid
data when, after a start condition, the data line is stable
for the duration of the high period of the clock signal. The
data on the line can be changed during the low period of
the clock signal. There is one clock pulse per bit of data.
Figures 2 and 3 detail how data transfer is accomplished
on the 2-wire bus. Depending upon the state of the R/W
bit, two types of data transfer are possible.
Each data transfer is initiated with a start condition and
terminated with a stop condition. The number of data
bytes transferred between start and stop conditions is
not limited and is determined by the master device. The
information is transferred byte-wise and each receiver
acknowledges with a ninth bit.
Within the bus specifications, a regular mode (100kHz
clock rate) and a fast mode (400kHz clock rate) are
defined. The DS3903 works in both modes.
Acknowledge: Each receiving device, when
addressed, is obliged to generate an acknowledge
after the byte has been received. The master device
must generate an extra clock pulse that is associated
with this acknowledge bit.
A device that acknowledges must pull down the SDA
line during the acknowledge clock pulse in such a way
that the SDA line is a stable low during the high period
of the acknowledge-related clock pulse. Of course,
setup and hold times must be taken into account. A
master must signal an end of data to the slave by not
generating an acknowledge bit on the last byte that has
been clocked out of the slave. In this case, the slave
must leave the data line high to enable the master to
generate the stop condition.
Data transfer from a master transmitter to a slave
receiver. The first byte transmitted by the master is the
command/control byte. Next follows a number of data
bytes. The slave returns an acknowledge bit after each
received byte.
Data transfer from a slave transmitter to a master
receiver. The master transmits the first byte (the com-
mand/control byte) to the slave. The slave then returns
an acknowledge bit. Next follows a number of data
bytes transmitted by the slave to the master. The mas-
ter returns an acknowledge bit after all received bytes
other than the last byte. At the end of the last received
byte, a not acknowledge can be returned.
The master device generates all serial clock pulses and
the start and stop conditions. A transfer is ended with a
stop condition or with a repeated start condition. Since
a repeated start condition is also the beginning of the
next serial transfer, the bus is not released.
The DS3903 can operate in the following three modes:
1)
Slave Receiver Mode: Serial data and clock are
received through SDA and SCL, respectively. After
each byte is received, an acknowledge bit is trans-
mitted. Start and stop conditions are recognized as
the beginning and end of a serial transfer. Address
recognition is performed by hardware after the
slave (device) address and direction bit has been
received.
2)
Slave Transmitter Mode: The first byte is received
and handled as in the slave receiver mode.
However, in this mode the direction bit indicates
that the transfer direction is reversed. Serial data is
transmitted on SDA by the DS3903 while the serial
clock is input on SCL. Start and stop conditions are
recognized as the beginning and end of a serial
transfer.
3)
Slave Address: Command/control byte is the first
byte received following the start condition from the
master device. The command/control byte consists
of a 6-bit control code. For the DS3903, this is set
as 101000 binary for read/write operations. The
next bit of the command/control byte is the device
select bit or slave address (A0). It is used by the
master device to select which of two devices is to
be accessed. When reading or writing the DS3903,
the device-select bits must match the device-select
pin (A0). The last bit of the command/control byte
(R/W) defines the operation to be performed. When
set to a ‘1’, a read operation is selected, and when
set to a ‘0’, a write operation is selected.
Following the start condition, the DS3903 monitors the
SDA bus checking the device type identifier being
transmitted. Upon receiving the 101000 control code,


유사한 부품 번호 - DS3903

제조업체부품명데이터시트상세설명
logo
Dallas Semiconductor
DS3900 DALLAS-DS3900 Datasheet
876Kb / 15P
   Serial Communications Module For Evaluation Kits
logo
Maxim Integrated Produc...
DS3900 MAXIM-DS3900 Datasheet
894Kb / 15P
   Serial Communications Module For Evaluation Kits
2004
logo
Dallas Semiconductor
DS3900EVKIT DALLAS-DS3900EVKIT Datasheet
876Kb / 15P
   Serial Communications Module For Evaluation Kits
logo
Maxim Integrated Produc...
DS3900EVKIT MAXIM-DS3900EVKIT Datasheet
894Kb / 15P
   Serial Communications Module For Evaluation Kits
2004
DS3900H2 MAXIM-DS3900H2 Datasheet
1Mb / 14P
   USB HID Communications Module for Evaluation Kits
Rev 0; 6/13
More results

유사한 설명 - DS3903

제조업체부품명데이터시트상세설명
logo
Maxim Integrated Produc...
DS3904 MAXIM-DS3904 Datasheet
392Kb / 11P
   Triple 128-Position Nonvolatile Digital
Rev 3; 3/07
logo
Dallas Semiconductor
DS3904 DALLAS-DS3904 Datasheet
254Kb / 11P
   Triple 128-Position Nonvolatile Digital Variable Resistor/Switch
logo
Analog Devices
AD5123 AD-AD5123 Datasheet
731Kb / 28P
   Quad Channel, 128-/256-Position, I2C, Nonvolatile Digital Potentiometer
AD5122 AD-AD5122_17 Datasheet
751Kb / 32P
   Dual Channel, 128-/256-Position, SPI, Nonvolatile Digital Potentiometer
AD5122A AD-AD5122A_17 Datasheet
768Kb / 32P
   Dual Channel, 128-/256-Position, I2C, Nonvolatile Digital Potentiometer
AD5123BCPZ100-RL7 AD-AD5123BCPZ100-RL7 Datasheet
642Kb / 28P
   Quad Channel, 128-/256-Position, I2C Nonvolatile Digital Potentiometer
REV. A
AD7376ARWZ10 AD-AD7376ARWZ10 Datasheet
452Kb / 20P
   128-Position Digital Potentiometer
REV. D
AD5124 AD-AD5124_17 Datasheet
829Kb / 36P
   Quad Channel, 128-/256-Position, I2C/SPI, Nonvolatile Digital Potentiometer
logo
Dallas Semiconductor
DS4301 DALLAS-DS4301 Datasheet
150Kb / 7P
   Nonvolatile, 32-Position Digital Potentiometer
logo
Maxim Integrated Produc...
DS4301 MAXIM-DS4301 Datasheet
155Kb / 7P
   Nonvolatile, 32-Position Digital Potentiometer
Rev 0; 8/03
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
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