Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

AD7142 Folha de dados(PDF) 34 Page - Analog Devices

Nome de Peças AD7142
Descrição Electrónicos  Programmable Controller for Capacitance Touch Sensors
Download  70 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD7142 Folha de dados(HTML) 34 Page - Analog Devices

Back Button AD7142_17 Datasheet HTML 30Page - Analog Devices AD7142_17 Datasheet HTML 31Page - Analog Devices AD7142_17 Datasheet HTML 32Page - Analog Devices AD7142_17 Datasheet HTML 33Page - Analog Devices AD7142_17 Datasheet HTML 34Page - Analog Devices AD7142_17 Datasheet HTML 35Page - Analog Devices AD7142_17 Datasheet HTML 36Page - Analog Devices AD7142_17 Datasheet HTML 37Page - Analog Devices AD7142_17 Datasheet HTML 38Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 34 / 70 page
background image
AD7142
Data Sheet
Rev. B | Page 34 of 70
SDI
CW
15
CW
14
CW
13
CW
8
CW
1
CW
0
XX
SCLK
CW
12
XX
XX
X
READBACK DATA FOR
STARTING REGISTER ADDRESS
X
X
1
32
2
3
4
15
16
17
18
31
34
33
48
47
49
CS
CW
11
CW
10
CW
9
CW
7
CW
2
CW
6
CW
5
CW
4
CW
3
11
12
13
14
5678
910
XXX XXX XXX
XXX D15 D14
D1
D0
D1
D0
D15
D15
D14
XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX
SDO
16-BIT COMMAND WORD
ENABLE WORD
R/W
REGISTER ADDRESS
NOTES
1. MULTIPLE REGISTERS CAN BE READ BACK CONTINUOUSLY.
2. THE 16-BIT CONTROL WORD MUST BE WRITTEN ON SDI: 5 BITS FOR ENABLE WORD, 1 BIT FOR R/W, AND 10 BITS FOR REGISTER ADDRESS.
3. THE ADDRESS AUTOMATICALLY INCREMENTS WITH EACH 16-BIT DATA-WORD BEING READ BACK ON THE SDO PIN.
4. CS IS HELD LOW UNTIL ALL REGISTER BITS HAVE BEEN READ BACK.
5. X DENOTES DON’T CARE.
6. XXX DENOTES HIGH IMPEDANCE THREE-STATE OUTPUT.
7. 16-BIT COMMAND WORD SETTINGS FOR SEQUENTIAL READBACK OPERATION:
CW[15:11] = 11100 (ENABLE WORD)
CW[10] = 1 (R/W)
CW[9:0] = [AD9, AD8, AD7, AD6, AD5, AD4, AD3, AD2, AD1, AD0] (STARTING MSB JUSTIFIED REGISTER ADDRESS)
READBACK DATA FOR
NEXT REGISTER ADDRESS
Figure 49. Sequential Register Read back SPI Timing
I2C COMPATIBLE INTERFACE
The AD7142-1 supports the industry standard 2-wire I2C serial
interface protocol. The two wires associated with the I2C timing are
the SCLK and the SDA inputs. The SDA is an I/O pin that allows
both register write and register readback operations. The AD7142-1
is always a slave device on the I2C serial interface bus.
It has a 7-bit device address, Address 0101 1XX. The lower two
bits are set by tying the ADD0 and ADD1 pins high or low. The
AD7142-1 responds when the master device sends its device
address over the bus. The AD7142-1 cannot initiate data
transfers on the bus.
Table 18. AD7142-1 I2C Device Address
ADD1
ADD0
I2C Address
0
0
0101 100
0
1
0101 101
1
0
0101 110
1
1
0101 111
Data Transfer
Data is transferred over the I2C serial interface in 8-bit bytes.
The master initiates a data transfer by establishing a start con-
dition, defined as a high-to-low transition on the serial data
line, SDA, when the serial clock line, SCLK, remains high. This
indicates that an address/data stream follows.
All slave peripherals connected to the serial bus respond to the
start condition and shift in the next eight bits, consisting of a
7-bit address (MSB first) plus a R/W bit that determines the
direction of the data transfer. The peripheral whose address
corresponds to the transmitted address responds by pulling the
data line low during the ninth clock pulse. This is known as the
acknowledge bit. All other devices on the bus now remain idle
when the selected device waits for data to be read from, or
written to it. If the R/W bit is a 0, the master writes to the slave
device. If the R/W bit is a 1, the master reads from the slave device.
Data is sent over the serial bus in a sequence of nine clock
pulses, eight bits of data followed by an acknowledge bit from
the slave device. Transitions on the data line must occur during
the low period of the clock signal and remain stable during the
high period, since a low-to-high transition when the clock is
high can be interpreted as a stop signal. The number of data
bytes transmitted over the serial bus in a single read or write
operation is limited only by what the master and slave devices
can handle.
When all data bytes are read or written, a stop condition is
established. A stop condition is defined by a low-to-high
transition on SDA when SCLK remains high. If the AD7142
encounters a stop condition, it returns to its idle condition, and
the address pointer register resets to Address 0x00.


Nº de peça semelhante - AD7142_17

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Analog Devices
AD7142 AD-AD7142_15 Datasheet
958Kb / 73P
   Programmable Controller for Capacitance Touch Sensors
REV. A
More results

Descrição semelhante - AD7142_17

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Analog Devices
AD7142 AD-AD7142_15 Datasheet
958Kb / 73P
   Programmable Controller for Capacitance Touch Sensors
REV. A
AD7143 AD-AD7143 Datasheet
1,006Kb / 56P
   Programmable Controller for Capacitance Touch Sensors
REV. 0
AD7143 AD-AD7143_17 Datasheet
589Kb / 57P
   Programmable Controller for Capacitance Touch Sensors
AD7143 AD-AD7143_15 Datasheet
784Kb / 57P
   Programmable Controller for Capacitance Touch Sensors
REV. 0
AD7142ACPZ-500RL7 AD-AD7142ACPZ-500RL7 Datasheet
844Kb / 73P
   Programmable Controller for Capacitance Touch Sensors
REV. A
AD7148 AD-AD7148 Datasheet
1Mb / 56P
   Programmable Touch Controller for Single Electrode Capacitance Sensors
REV. 0
AD7147 AD-AD7147_15 Datasheet
889Kb / 73P
   CapTouch Programmable Controller for Single-Electrode Capacitance Sensors
REV. D
AD7147 AD-AD7147 Datasheet
1Mb / 68P
   CapTouch??Programmable Controller for Single-Electrode Capacitance Sensors
REV. 0
logo
Texas Instruments
TSC2301 TI1-TSC2301_15 Datasheet
1Mb / 94P
[Old version datasheet]   PROGRAMMABLE TOUCH SCREEN CONTROLLER
logo
ON Semiconductor
LC717A30UR ONSEMI-LC717A30UR Datasheet
241Kb / 14P
   Capacitance?륞igital?륝onverter LSI for Electrostatic Capacitive Touch Sensors
November, 2018 ??Rev. 0
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 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
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