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SX1511BIULTRT Datasheet(PDF) 4 Page - Semtech Corporation |
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SX1511BIULTRT Datasheet(HTML) 4 Page - Semtech Corporation |
4 / 37 page ADVANCED COMMUNICATIONS & SENSING Rev 4 – 26 th April 2011 4 www.semtech.com SX1511B/SX1512B World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine 1 PIN DESCRIPTION 1.1 SX1511B 8-channel SPI GPIO with LED Driver and Keypad Engine Pin Symbol Type Description 1 NRESET DI Active low reset input 2 SO DO SPI data output (HZ when not used) 3 SCK DI SPI clock input 4 SI DI SPI data input 5 I/O[0] DIO (*1) I/O[0], at power-on configured as an input LED driver : Intensity control (PWM) 6 I/O[1] DIO (*1) I/O[1], at power-on configured as an input LED driver : Intensity control (PWM) 7 VCC1 P Supply voltage for Bank A I/O[3-0] 8 GND P Ground Pin 9 I/O[2] DIO (*1) I/O[2], at power-on configured as an input LED driver : Intensity control (PWM), Blinking 10 I/O[3] DIO (*1) I/O[3], at power-on configured as an input LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out) 11 NINT DO Active low interrupt output 12 NSS DI SPI slave select input (active low) 13 OSCIO DIO (*1) Oscillator input/output, can also be used as GPO 14 VDDM P Main supply voltage 15 I/O[4] DIO (*1) I/O[4], at power-on configured as an input LED driver : Intensity control (PWM) 16 I/O[5] DIO (*1) I/O[5], at power-on configured as an input LED driver : Intensity control (PWM) 17 VCC2 P Supply voltage for Bank B I/O[7-4] 18 GND P Ground Pin 19 I/O[6] DIO (*1) I/O[6], at power-on configured as an input LED driver : Intensity control (PWM), Blinking 20 I/O[7] DIO (*1) I/O[7], at power-on configured as an input LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out) D/I/O/P: Digital/Input/Output/Power (*1) This pin is programmable through the SPI interface Table 1 – SX1511B Pin Description Figure 1 – SX1511B QFN-UT-20 Pinout NRESET SO SCK SI I/O[0] I/O[4] VDDM OSCIO NSS NINT GND (PAD) |
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