công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

BU21025GUL-E2 bảng dữ liệu(PDF) 4 Page - Rohm

tên linh kiện BU21025GUL-E2
Giải thích chi tiết về linh kiện  4-wire Resistive Touch Screen Controller
Download  19 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  ROHM [Rohm]
Trang chủ  http://www.rohm.com
Logo ROHM - Rohm

BU21025GUL-E2 bảng dữ liệu(HTML) 4 Page - Rohm

  BU21025GUL-E2 Datasheet HTML 1Page - Rohm BU21025GUL-E2 Datasheet HTML 2Page - Rohm BU21025GUL-E2 Datasheet HTML 3Page - Rohm BU21025GUL-E2 Datasheet HTML 4Page - Rohm BU21025GUL-E2 Datasheet HTML 5Page - Rohm BU21025GUL-E2 Datasheet HTML 6Page - Rohm BU21025GUL-E2 Datasheet HTML 7Page - Rohm BU21025GUL-E2 Datasheet HTML 8Page - Rohm BU21025GUL-E2 Datasheet HTML 9Page - Rohm Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 19 page
background image
BU21025GUL
TSZ02201-0Y2Y0F300050-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
7.AUG.2012 Rev.002
www.rohm.com
TSZ22111・15・001
4/15
Datasheet
Datasheet
●2-wire Serial Interface
BU21025GUL supports a 2-wire serial interface A device that controls transfer is called a master. A device that controlled by
the master is called a slave. BU21025GUL is a slave device.
BU21025GUL has a write protocol and a read protocol. The write protocol consists of a start condition, an address byte, a
command byte, and a stop condition. The read protocol consists of a start condition, an address byte, one or two data bytes,
and a stop condition.
Start Condition
BU21025GUL recognizes as a start condition that falling edge of SDA while SCL is set “H”. If the start condition is received,
BU21025GUL will be in the state that can be transfer and received data. When the start condition is fulfilled, BU21025GUL
recognize the (repeated) start condition also in data transfer.
Stop Condition
BU21025GUL recognizes as a stop condition that rising edge of SDA while SCL is set “H”. If the stop condition is received,
BU21025GUL will be in the state that can not be transfer and received data.
Data Transfer
Data is transferred with the most significant bit (MSB) first and 8-bits long. Each byte has to be followed by an acknowledge
bit. A Timing of SDA data receiving is rising edge of SCL. A state of SDA can only change when SCL set to “L”. If SDA is
changed while SCL is set “H”, a start or stop condition will recognized by BU21025GUL.
Acknowledge Bit (sending)
After the master sends a byte to BU21025GUL, an acknowledge bit is used in order that BU21025GUL may return a
response to the master. At this time, the master needs to set SDA into a high impedance state. When BU21025GUL
receives effectively data, it sets SDA to “L” (ACK). Otherwise SDA is set to “H” (NACK).
Acknowledge Bit (receiving)
After the master receives a byte from BU21025GUL, an acknowledge bit is used for judgment of whether BU21025GUL
continues data transfer. In this case, the master needs to set SDA. When SDA is set to “L” (ACK), BU21025GUL continues
data transfer. When SDA is set to “H” (NACK), BU21025GUL ends data transfer.
Address Byte
BU21025GUL recognizes one byte data as an address byte after a start condition. The address byte is consisted a 7-bit
slave address and a read-write bit. If a received slave address is matched with its one, BU21025GUL issues an
acknowledge to the master. Otherwise BU21025GUL doesn’t issue an acknowledge to the master and stops data transfer.
Upper 5 bits of the 7-bit slave address are “10010”. And lower 2 bits of the 7-bit slave address are programmable by AD1
and AD0. The read-write bit (R/WB) determines direction. When it is ‘1’, the master reads from BU21025GUL. When it is ‘0’,
the master writes to BU21025GUL.
Table 1. Address Byte
BIT
MSB
7
6
5
4
3
2
1
LSB
0
NAME
S6
S5
S4
S3
S2
S1
S0
R/WB
SLAVE
1
0
0
1
0
AD1
AD0
-
BIT 7-1 : S6-0
Slave address
BIT 0 : R/WB
0: The master writes to BU21025GUL
1: The master reads from BU21025GUL.


Số phần tương tự - BU21025GUL-E2

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Rohm
BU21021GUL ROHM-BU21021GUL Datasheet
619Kb / 13P
   4-wire resistive Touch Screen Controller
BU21021GUL-E2 ROHM-BU21021GUL-E2 Datasheet
619Kb / 13P
   4-wire resistive Touch Screen Controller
BU21023FV-ME2 ROHM-BU21023FV-ME2 Datasheet
404Kb / 18P
   Resistive Type Touch Screen Controller ICs
BU21023GUL ROHM-BU21023GUL Datasheet
717Kb / 8P
   Silicon monolithic IC
BU21023GUL ROHM-BU21023GUL Datasheet
404Kb / 18P
   Resistive Type Touch Screen Controller ICs
More results

Mô tả tương tự - BU21025GUL-E2

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Rohm
BU21029MUV ROHM-BU21029MUV Datasheet
819Kb / 29P
   4-wire Resistive Touch Screen Controller
BU21026MUV ROHM-BU21026MUV Datasheet
2Mb / 23P
   4-wire Resistive Touch Screen Controller
logo
List of Unclassifed Man...
XPT7603 ETC2-XPT7603 Datasheet
443Kb / 25P
   4-wire resistive touch screen controller
logo
Rohm
BU21049GUL ROHM-BU21049GUL Datasheet
811Kb / 26P
   4-wire Resistive Touch Screen Controller
BU21028FV-M ROHM-BU21028FV-M Datasheet
2Mb / 36P
   4-wire Resistive Touch Screen Controller
BU21021GUL ROHM-BU21021GUL Datasheet
619Kb / 13P
   4-wire resistive Touch Screen Controller
BU21029GUL ROHM-BU21029GUL Datasheet
762Kb / 29P
   4-wire Resistive Touch Screen Controller
logo
Microchip Technology
AR1000 MICROCHIP-AR1000_12 Datasheet
3Mb / 70P
   Resistive Touch Screen Controller
11/29/11
AR1000 MICROCHIP-AR1000 Datasheet
2Mb / 37P
   Resistive Touch Screen Controller
2009
logo
AAEON Technology
GENE-LN05-B AAEON-GENE-LN05-B Datasheet
289Kb / 2P
   Onboard 4/5/8-wire Resistive Touch Screen Controller
More results


Html Pages

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


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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