th Oct. 2009 12 www.semtech.com SX1507/SX1508/SX1509 W" />
參數(shù)資料
型號: SX1509BULTRT
廠商: Semtech
文件頁數(shù): 4/41頁
文件大?。?/td> 0K
描述: IC GPIO EXPANDER I2C 16CH 28QFN
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): 16
中斷輸出:
頻率 - 時(shí)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(yīng)商設(shè)備封裝: 28-QFN-UT(4x4)
包裝: 標(biāo)準(zhǔn)包裝
包括: LED 驅(qū)動(dòng)器 / 小鍵盤引擎
其它名稱: SX1509IULDKR
SX1509IULDKR-ND
ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 30
th Oct. 2009
12
www.semtech.com
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
4
BLOCK DETAILED DESCRIPTION
4.1
SX1507 4-channel I
2C GPIO with LED Driver
Input
Filter
Reset
VDDM
I
2C Bus
Control
NRESET
SCL
SDA
Interrupt
4-Bit
VCC1
I/O[0]
I/O[1]
I/O[2]
I/O[3]
R/W
GND
LED Driver
Blink (Timer)
Breath (Ramp)
Intensity (PWM)
Clock Mgmt
Internal
Oscillator
I/O Bank A
A
SX1507
NINT
OSCIO
External
Clock
ADDR1
ADDR0
Figure 4 – 4-channel Low Voltage GPIO with LED Driver
4.2
SX1508 8-channel I
2C GPIO with LED Driver and Keypad Engine
Input
Filter
Reset
VDDM
I
2C Bus
Control
VCC1
NRESET
SCL
SDA
Interrupt
8-Bit
I/O[0]
I/O[1]
I/O[2]
I/O[3]
R/W
I/O[4]
I/O[5]
I/O[6]
I/O[7]
ADDR1
GND
VCC2
LED Driver
Blink (Timer)
Breath (Ramp)
Intensity (PWM)
Clock Mgmt
Internal
Oscillator
External
Clock
I/O Bank A
A
I/O Bank B
A
SX1508
NINT
OSCIO
ADDR0
Keypad
Engine
16 Keys Max
Figure 5 – 8-channel Low Voltage GPIO with LED Driver and Keypad Engine
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