th Oct. 2009 20 www.semtech.com SX1507/SX1508/SX1509 W" />
參數資料
型號: SX1508IULTRT
廠商: Semtech
文件頁數: 13/41頁
文件大小: 0K
描述: IC GPIO EXPANDER I2C 8CH 20QFN
特色產品: SX1508/SX1509 GPIO Expanders
標準包裝: 1
接口: I²C
輸入/輸出數: 8
中斷輸出:
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
供應商設備封裝: 20-QFN-UT(3x3)
包裝: 標準包裝
包括: LED 驅動器 / 小鍵盤引擎
其它名稱: SX1508IULDKR
ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 30
th Oct. 2009
20
www.semtech.com
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
4.9.3
Single Shot Mode
Invoked when TOnX != 0 and TOffX = 0.
If the I/O doesn’t support fading the LED intensity will step directly to the IOnX/IOffX value.
IOLED(X) level
On intensity(max)
Off intensity(min)
RegData(X)
Fade in rate determined by
register RegTRiseX
Minimum intensity duration
determined by register
RegData(x)
Fade out rate determined
by register RegTFallX
Figure 17 – LED Driver Single Shot Mode
4.9.4
Blink Mode
Invoked when TOnX != 0 and TOffX != 0.
If the I/O doesn’t support fading the LED intensity will step directly to the IOnX/IOffX value.
Off intensity(min)
RegData(X)
IOLED(X) level
Fade in rate determined by
register RegTRiseX
Minimum intensity duration
determined by register
RegTOffX
Maximum intensity
duration determined by
register RegTOnX
Fade out rate determined
by register RegTFallX
When RegData(X) is cleared, the LED
will complete any current ramp, and then
stay at minimum intensity
On intensity(max)
Figure 18 – LED Driver Blink Mode
4.9.5
LED Driver Modes
For each IO bank, the LED driver mode of fading capable IOs can be selected between linear or logarithmic in
RegMisc.
Lin.
Log.
Lin.
Log.
Lin.
Log.
Lin.
Log.
Lin.
Log.
Lin.
Log.
Lin.
Log.
Lin.
Log.
0
32
4
64
13
96
28
128
53
160
88
192
135
224
198
1
0
33
4
65
13
97
28
129
53
161
88
193
135
225
198
2
0
34
4
66
13
98
30
130
53
162
88
194
135
226
198
3
0
35
4
67
13
99
30
131
53
163
88
195
135
227
198
4
0
36
5
68
14
100
31
132
56
164
93
196
142
228
207
5
0
37
5
69
14
101
31
133
56
165
93
197
142
229
207
6
0
38
5
70
14
102
32
134
56
166
93
198
142
230
207
7
0
39
5
71
14
103
32
135
56
167
93
199
142
231
207
相關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
相關代理商/技術參數
參數描述
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 擴展器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 接口:I²C,JTAG 輸入/輸出數: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) 供應商設備封裝:20-TSSOP 包裝:管件 包括:EEPROM