th May 2012 www.semtech.com 2 SX1501/SX1502/SX1503 4/8/16 Channel Lo" />
參數(shù)資料
型號(hào): SX1502I087TRT
廠商: Semtech
文件頁(yè)數(shù): 12/32頁(yè)
文件大小: 0K
描述: IC GPIO EXPANDER I2C 8CH 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): 8
中斷輸出:
頻率 - 時(shí)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(yè)面: 1359 (CN2011-ZH PDF)
其它名稱: SX1502I087DKR
WIRELESS & SENSING
Rev 11 – 16
th May 2012
www.semtech.com
2
SX1501/SX1502/SX1503
4/8/16 Channel Low Voltage GPIO
Table of Contents
GENERAL DESCRIPTION ..................................................................................................................... 1
ORDERING INFORMATION................................................................................................................... 1
KEY PRODUCT FEATURES.................................................................................................................. 1
TYPICAL APPLICATIONS ..................................................................................................................... 1
1
PIN DESCRIPTION ...................................................................................................................... 4
1.1
SX1501 4-channel GPIO
4
1.2
SX1502 8-channel GPIO
5
1.3
SX1503 16-channel GPIO
6
2
ELECTRICAL CHARACTERISTICS............................................................................................... 7
2.1
Absolute Maximum Ratings
7
2.2
Electrical Specifications
7
2.2.1
Increasing I/O Sink and Source Current Capabilities (Boost Mode)
9
3
TYPICAL OPERATING CHARACTERISTICS ............................................................................... 10
3.1
IDDM vs. VDDM
10
3.2
VOL vs. IOL
10
3.3
VOH vs. IOH
11
3.4
ICC1+ICC2 vs. VCC1,2 when Boost Mode is ON
12
4
BLOCK DETAILED DESCRIPTION ............................................................................................. 13
4.1
SX1501 4-channel GPIO
13
4.2
SX1502 8-channel GPIO
13
4.3
SX1503 16-channel GPIO
14
4.4
Reset (NRESET)
14
4.5
2-Wire Interface (I
2C)
15
4.5.1
WRITE
15
4.5.2
READ
16
4.5.3
READ - STOP separated format (SX1501 and SX1502 only)
16
4.6
Interrupt (NINT)
17
4.7
Programmable Logic Functions (PLD)
17
4.7.1
SX1501
17
4.7.2
SX1502
18
4.7.3
SX1503
18
4.7.4
Tutorial
19
5
CONFIGURATION REGISTERS.................................................................................................. 20
5.1
SX1501 4-channel GPIO
20
5.2
SX1502 8-channel GPIO
21
5.3
SX1503 16-channel GPIO
23
6
APPLICATION INFORMATION ................................................................................................... 27
6.1
Typical Application Circuit
27
6.2
Typical LED Operation
27
6.2.1
LED ON/OFF Control
27
6.2.2
LED Intensity Control
28
6.3
Keypad Implementation
28
6.4
Level Shifter Implementation Hints
28
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SX1504 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:4/8/16 Channel GPIO with NINT and NRESET