th Oct. 2009 27 www.semtech.com SX1507/SX1508/SX1509 W" />
參數(shù)資料
型號： SX1508IULTRT
廠商： Semtech
文件頁數(shù)： 20/41頁
文件大小： 0K
描述： IC GPIO EXPANDER I2C 8CH 20QFN
特色產(chǎn)品： SX1508/SX1509 GPIO Expanders
標(biāo)準(zhǔn)包裝： 1
接口： I²C
輸入/輸出數(shù)： 8
中斷輸出： 是
頻率 - 時鐘： 400kHz
電源電壓： 1.2 V ~ 3.6 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
包括： LED 驅(qū)動器 / 小鍵盤引擎
其它名稱： SX1508IULDKR
ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 30
th Oct. 2009
27
www.semtech.com
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
Addr
Name
Default
Bits
Description
0x00
RegInputDisable
0x00
7:0
Disables the input buffer of each IO
0 : Input buffer is enabled (input actually being used)
1 : Input buffer is disabled (input actually not being used or LED connection)
0x01
RegLongSlew
0x00
7:0
Enables increased slew rate of the output buffer of each [output-configured] IO
0 : Increased slew rate is disabled
1 : Increased slew rate is enabled
0x02
RegLowDrive
0x00
7:0
Enables reduced drive of the output buffer of each [output-configured] IO
0 : Reduced drive is disabled
1 : Reduced drive is enabled
0x03
RegPullUp
0x00
7:0
Enables the pull-up for each IO
0 : Pull-up is disabled
1 : Pull-up is enabled
0x04
RegPullDown
0x00
7:0
Enables the pull-down for each IO
0 : Pull-down is disabled
1 : Pull-down is enabled
0x05
RegOpenDrain
0x00
7:0
Enables open drain operation for each [output-configured] IO
0 : Regular push-pull operation
1 : Open drain operation
0x06
RegPolarity
0x00
7:0
Enables polarity inversion for each IO
0 : Normal polarity : RegData[x] = IO[x]
1 : Inverted polarity : RegData[x] = !IO[x] (for both input and output configured IOs)
0x07
RegDir
0xFF
7:0
Configures direction for each IO.
0 : IO is configured as an output
1 : IO is configured as an input
0x08
RegData
0xFF
7:0
Write: Data to be output to the output-configured IOs
Read: Data seen at the IOs, independent of the direction configured.
0x09
RegInterruptMask
0xFF
7:0
Configures which [input-configured] IO will trigger an interrupt on NINT pin
0 : An event on this IO will trigger an interrupt
1 : An event on this IO will NOT trigger an interrupt
7:6
Edge sensitivity of RegData[7]
5:4
Edge sensitivity of RegData[6]
3:2
Edge sensitivity of RegData[5]
0x0A
RegSenseHigh
0x00
1:0
Edge sensitivity of RegData[4]
00 : None
01 : Rising
10 : Falling
11 : Both
7:6
Edge sensitivity of RegData[3]
5:4
Edge sensitivity of RegData[2]
3:2
Edge sensitivity of RegData[1]
0x0B
RegSenseLow
0x00
1:0
Edge sensitivity of RegData[0]
00 : None
01 : Rising
10 : Falling
11 : Both
0x0C
RegInterruptSource
0x00
7:0
Interrupt source (from IOs set in RegInterruptMask)
0 : No interrupt has been triggered by this IO
1 : An interrupt has been triggered by this IO (an event as configured in relevant
RegSense register occured).
Writing '1' clears the bit in RegInterruptSource and in RegEventStatus
When all bits are cleared, NINT signal goes back high.
0x0D
RegEventStatus
0x00
7:0
Event status of all IOs.
0 : No event has occured on this IO
1 : An event has occured on this IO (an edge as configured in relevant RegSense
register occured).
Writing '1' clears the bit in RegEventStatus and in RegInterruptSource if relevant.
If the edge sensitivity of the IO is changed, the bit(s) will be cleared automatically
7:6
Level shifter mode for IO[3] (Bank A) and IO[7] (Bank B)
5:4
Level shifter mode for IO[2] (Bank A) and IO[6] (Bank B)
3:2
Level shifter mode for IO[1] (Bank A) and IO[5] (Bank B)
0x0E
RegLevelShifter
0x00
1:0
Level shifter mode for IO[0] (Bank A) and IO[4] (Bank B)
00 : OFF
01 : A->B
10 : B->A
11 : Reserved
7
Unused
6:5
Oscillator frequency (fOSC) source
00 : OFF. LED driver, keypad engine and debounce features are disabled.
01 : External clock input (OSCIN)
10 : Internal 2MHz oscillator
11 : Reserved
4
OSCIO pin function (Cf. §4.8)
0 : OSCIO is an input (OSCIN)
1 : OSCIO is an output (OSCOUT)
0x0F
RegClock
0x00
3:0
Frequency of the signal output on OSCOUT pin:
0x0 : 0Hz, permanent "0" logical level (GPO)
0xF : 0Hz, permanent "1" logical level (GPO)
Else : fOSCOUT = fOSC/(2^(RegClock[3:0]-1))
0x10
RegMisc
0x00
7
LED Driver mode for Bank B ‘s fading capable IOs (IO7)
0: Linear
1: Logarithmic
相關(guān)PDF資料
PDF描述
MAX7317ATE+T IC I/O EXPANDER SPI 10B 16TQFN
PCA9655EDTR2G IC I/O EXPANDER I2C 16B 24-TSSOP
3448-55 STRAIN RELIEF 26 POS
IS82C55AZ IC I/O EXPANDER 24B 44PLCC
3448-57 STRAIN RELIEF 40 POS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SX1508QB 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine
SX1508QBIULTRT 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine
SX1509BEVK 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine
SX1509BIULTRT 制造商:Semtech Corporation 功能描述: 制造商:Semtech Corporation 功能描述:IC GPIO EXPANDER I2C 16CH 28QFN 制造商:Semtech Corporation 功能描述:Low Voltage Level Shifting GPIO with LED Driver and Keypad Engine 制造商:Semtech Corporation 功能描述:16 CHAN LOW VOLT I2C GPIO +PWM
SX1509BULTRT 功能描述:IC GPIO EXPANDER I2C 16CH 28QFN RoHS:是 類別:集成電路 (IC) >> 接口 - I/O 擴(kuò)展器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:74 系列:- 接口:I²C，JTAG 輸入/輸出數(shù):9 中斷輸出:無 頻率 - 時鐘:400kHz 電源電壓:2.7 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-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件 包括:EEPROM
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*