參數(shù)資料
| 型號： | SX1509BULTRT |
| 廠商： | Semtech |
| 文件頁數(shù)： | 18/41頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC GPIO EXPANDER I2C 16CH 28QFN |
| 特色產品： | SX1508/SX1509 GPIO Expanders |
| 標準包裝： | 1 |
| 接口： | I²C |
| 輸入/輸出數(shù)： | 16 |
| 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： | 28-UFQFN 裸露焊盤 |
| 供應商設備封裝： | 28-QFN-UT（4x4） |
| 包裝： | 標準包裝 |
| 包括： | LED 驅動器 / 小鍵盤引擎 |
| 其它名稱： | SX1509IULDKR SX1509IULDKR-ND |
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ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 30
th Oct. 2009
25
www.semtech.com
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
7
Unused
6:4
Frequency of the LED Driver clock ClkX of all IOs:
0 : OFF. LED driver functionality is disabled for all IOs.
Else : ClkX = fOSC/(2^(RegMisc[6:4]-1))
3
LED Driver mode for Bank A ‘s fading capable IOs (IO1-3)
0: Linear
1: Logarithmic
2
NRESET pin function when externally forced low (Cf. §4.4.1 and §4.9.5).
0: Equivalent to POR
1: Reset PWM/Blink/Fade counters (not user programmed values)
This bit is can only be reset manually or by POR, not by NRESET.
1
Auto-increment register address (Cf. §4.5)
0: ON. When several consecutive data are read/written, register address is incremented.
1: OFF. When several consecutive data are read/written, register address is kept fixed.
0x0E
RegMisc
0x00
0
Autoclear NINT on RegData read (Cf. §4.7)
0: ON. RegInterruptSource is also automatically cleared when RegData is read.
1: OFF. RegInterruptSource must be manually cleared, either directly or via
RegEventStatus.
7:4
Unused
0x0F
RegLEDDriverEnable
0xX0
3:0
Enables LED Driver for each [output-configured] IO
0 : LED Driver is disabled
1 : LED Driver is enabled
7:3
Unused
0x10
RegDebounceConfig
0x00
2:0
Debounce time (Cf. §4.6.1)
000: 0.5ms x 1MHz/fOSC
001: 1ms x 1MHz/fOSC
010: 2ms x 1MHz/fOSC
011: 4ms x 1MHz/fOSC
100: 8ms x 1MHz/fOSC
101: 16ms x 1MHz/fOSC
110: 32ms x 1MHz/fOSC
111: 64ms x 1MHz/fOSC
7:4
Unused
0x11
RegDebounceEnable
0xX0
3:0
Enables debouncing for each [input-configured] IO
0 : Debouncing is disabled
1 : Debouncing is enabled
7:5
Unused
0xXX
RegTOnX
0x00
4:0
ON Time of IO[X]:
0 : Infinite (Static mode, TOn directly controlled by RegData, Cf §4.9.2)
1 - 15 : TOnX = 64 * RegTOnX * (255/ClkX)
16 - 31 : TOnX = 512 * RegTOnX * (255/ClkX)
0xXX
RegIOnX
0xFF
7:0
ON Intensity of IO[X]
- Linear mode : IOnX = RegIOnX
- Logarithmic mode (fading capable IOs only) : IOnX = f(RegIOnX) , Cf §4.9.5
7:3
OFF Time of IO[X]:
0 : Infinite (Single shot mode, TOff directly controlled by RegData, Cf §4.9.3)
1 - 15 : TOffX = 64 * RegOffX[7:3] * (255/ClkX)
16 - 31 : TOffX = 512 * RegOffX[7:3] * (255/ClkX)
0xXX
RegOffX
0x00
2:0
OFF Intensity of IO[X]
- Linear mode : IOffX = 4 x RegOff[2:0]
- Logarithmic mode (fading capable IOs only) : IOffX = f(4 x RegOffX[2:0]) , Cf §4.9.5
7:5
Unused
0xXX
RegTRiseX
0x00
4:0
Fade In setting of IO[X]
0 : OFF
1 - 15 : TRiseX = (RegIOnX-(4xRegOffX[2:0])) * RegTRiseX * (255/ClkX)
16 - 31 : TRiseX = 16 * (RegIOnX-(4xRegOffX[2:0])) * RegTRiseX * (255/ClkX)
7:5
Unused
0xXX
RegTFallX
0x00
4:0
Fade Out setting of IO[X]
0 : OFF
1 - 15 : TFallX = (RegIOnX-(4xRegOffX[2:0])) * RegTFallX * (255/ClkX)
16 - 31 : TFallX = 16 * (RegIOnX-(4xRegOffX[2:0])) * RegTFallX * (255/ClkX)
0x7D
RegReset
0x00
7:0
Software reset register
Writing consecutively 0x12 and 0x34 will reset the device (same as POR).
Always reads 0.
Table 10 – SX1507 Configuration Registers Description
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相關代理商/技術參數(shù) |
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| SX1509EVK | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Worlds Lowest Voltage Level |
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| SX1509QB | 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 |
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