- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1970 > SX1501I087TRT (Semtech)IC GPIO EXPANDER I2C 4CH 20QFN PDF資料下載
參數(shù)資料
| 型號： | SX1501I087TRT |
| 廠商： | Semtech |
| 文件頁數(shù)： | 8/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC GPIO EXPANDER I2C 4CH 20QFN |
| 產(chǎn)品培訓(xùn)模塊： | Low Voltage GPIO Expander Family |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 接口： | I²C |
| 輸入/輸出數(shù)： | 4 |
| 中斷輸出： | 是 |
| 頻率 - 時鐘： | 400kHz |
| 電源電壓： | 1.2 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-UFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 20-QFN-UT（3x3） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁面： | 1359 (CN2011-ZH PDF) |
| 其它名稱： | SX1501I087DKR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
WIRELESS & SENSING
Rev 11 – 16
th May 2012
www.semtech.com
16
SX1501/SX1502/SX1503
4/8/16 Channel Low Voltage GPIO
Figure 9 – Write RegData Register
Please note that SX1503 implements register address auto-increment i.e. after the Data ACK from Slave the
master can write further bytes and the interface will handle the register address increment automatically. Finally
the master terminates the transfer normally the stop condition [P].
4.5.2
READ
After the start condition [S], the slave address is sent, followed by an eighth bit indicating a write. The I
2C then
acknowledges that it is being addressed, and the master responds with an 8 bit data byte consisting of the
register address. The slave acknowledges and the master sends the repeated start condition [Sr]. Once again,
the slave address is sent, followed by an eighth bit indicating a read. The slave responds with an acknowledge
and the previously addressed 8 bit data byte; the master then sends a non-acknowledge (NACK). Finally, the
master terminates the transfer with the stop condition [P].
Master operations
SX1501, SX1502 or SX1503 operations (Slave)
S: Start Condition
Slave Address: 7 bit
W: Write = ‘0’
Register Address: 8 bit
R: Read = ‘1’
Data: 8 bit
A: Acknowledge (sent by slave)
NACK: Non-Acknowledge (sent by master)
Sr: Repeated Start Condition
P: Stop condition
Figure 10 - 2-Wire Serial Interface, Read Register Operation
Please note that SX1503 implements register address auto-increment i.e. after the Data byte from Slave the
master can acknowledge (ACK) to indicate that it wants to read the next byte and the interface will handle the
register address increment automatically. Finally the master terminates the transfer normally with a NACK
followed by the stop condition [P].
4.5.3
READ - STOP separated format (SX1501 and SX1502 only)
When operating SX1501 or SX1502, stop-separated reads can also be used. This format allows a master to set
up the register address pointer for a read and return to that slave at a later time to read the data. In this format
the slave address followed by a write command are sent after a start [S] condition. The slave then acknowledges
it is being addressed, and the master responds with the 8-bit register address. The master sends a Stop or
Restart condition and may then address another slave. After performing other tasks, the master can send a start
or restart condition to the slave with a read command. The slave acknowledges this request and returns the data
from the register location that had previously been set up.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SX1504I087TRT | IC GPIO EXPANDER I2C 4CH 20QFN |
| SX1509BULTRT | IC GPIO EXPANDER I2C 16CH 28QFN |
| SX8722I070TRLF | IC ZOOMING ADC 10BIT 16CH 44MLPQ |
| SX8723CWLTDT | IC DAS ADC 16BIT I2C/SRL |
| SX8723E083TDT | IC DAS PRESS/TEMP SENS 12MLPD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SX1501I088TRT | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:4/8/16 Channel Low Voltage GPIO |
| SX1502 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:4/8/16 Channel Low Voltage GPIO with NINT and NRESET |
| SX1502EVK | 制造商:Semtech Corporation 功能描述:SX1502EVK Series 8 Channel 400 kHz 3.3 V I2C Low Voltage GPIO Evaluation Kit 制造商:Semtech Corporation 功能描述:Evaluation Board For 4,8,16 Channel Low Voltage GPIO |
| SX1502I087TRT | 功能描述:IC GPIO EXPANDER I2C 8CH 20QFN RoHS:是 類別:集成電路 (IC) >> 接口 - I/O 擴展器 系列:- 產(chǎn)品培訓(xùn)模塊:I²C Bus Fundamentals 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 接口:I²C，SM 總線 輸入/輸出數(shù):16 中斷輸出:是 頻率 - 時鐘:400kHz 電源電壓:2.3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:24-TSSOP 包裝:Digi-Reel® 包括:POR 產(chǎn)品目錄頁面:826 (CN2011-ZH PDF) 配用:568-4002-ND - DEMO BOARD I2C 其它名稱:568-1058-6 |
| SX1502I088TRT | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:4/8/16 Channel Low Voltage GPIO |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。