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SX1512BIULTRT Datasheet(PDF) 12 Page - Semtech Corporation |
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SX1512BIULTRT Datasheet(HTML) 12 Page - Semtech Corporation |
12 / 37 page ![]() ADVANCED COMMUNICATIONS & SENSING Rev 4 – 26 th April 2011 12 www.semtech.com SX1511B/SX1512B World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine 4 BLOCK DETAILED DESCRIPTION 4.1 SX1511B 8-channel SPI GPIO with LED Driver and Keypad Engine Reset VDDM SPI Bus Control VCC1 NRESET 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] 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 SX1511B NINT OSCIO SCK SO SI NSS Keypad Engine 16 Keys Max Figure 4 – 8-channel Low Voltage GPIO with LED Driver and Keypad Engine 4.2 SX1512B 16-channel SPI GPIO with LED Driver and Keypad Engine SPI Bus Control VCC1 Reset VDDM NRESET Interrupt 8-Bit R/W I/O[0] I/O[1] I/O[2] I/O[3] I/O[4] I/O[5] I/O[6] I/O[7] 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 SX1512B I/O[8] I/O[9] I/O[10] I/O[11] I/O[12] I/O[13] I/O[14] I/O[15] 8-Bit R/W NINT OSCIO SCK SO SI NSS Keypad Engine Auto Sleep/Wakeup 64 Keys Max Figure 5 – 16-channel Low Voltage GPIO with LED Driver and Keypad Engine |
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