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SX1503I091TRT Datasheet(PDF) 2 Page - Semtech Corporation |
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SX1503I091TRT Datasheet(HTML) 2 Page - Semtech Corporation |
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2 / 34 page  ADVANCED COMMUNICATIONS & SENSING Rev 7 – 2 nd Oct. 2008 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 |
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