sx150x_89b-datasheet

ManualsBrandsSmart Prototyping ManualsIO Expansion & ADCsZio Qwiic IO Expander (16 Channels)

ADVANCED COMMUNICATIONS & SENSING

Rev 4 – 26

April 2011 5 www.semtech.com

SX1508B/SX1509B

World’s Lowest Voltage Level Shifting GPIO

with LED Driver and Keypad Engine

1.2 SX1509B 16-channel I

C GPIO with LED Driver and Keypad Engine

Pin Symbol Type Description

1 I/O[2] DIO

(*1)

I/O[2], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking

2 I/O[3] DIO

(*1)

I/O[3], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking

3 GND P Ground Pin

4 VCC1 P Supply voltage for Bank A I/O[7-0]

5 I/O[4] DIO

(*1)

I/O[4], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)

6 I/O[5] DIO

(*1)

I/O[5], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)

7 I/O[6] DIO

(*1)

I/O[6], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)

8 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)

9 NINT DO Active low interrupt output

10 ADDR1 DI Address input bit 1, connect to VDDM or GND

11 OSCIO DIO

(*1)

Oscillator input/output, can also be used as GPO

12 VDDM P Main supply voltage

13 I/O[8] DIO

(*1)

I/O[8], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking

14 I/O[9] DIO

(*1)

I/O[9], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking

15 I/O[10] DIO

(*1)

I/O[10], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking

16 I/O[11] DIO

(*1)

I/O[11], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking

17 GND P Ground Pin

18 VCC2 P Supply voltage for Bank B I/O[15-8]

19 I/O[12] DIO

(*1)

I/O[12], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)

20 I/O[13] DIO

(*1)

I/O[13], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)

21 I/O[14] DIO

(*1)

I/O[14], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)

22 I/O[15] DIO

(*1)

I/O[15], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)

23 NRESET DI Active low reset input

24 SDA DIO I

C serial data line

25 SCL DI I

C serial clock line

26 ADDR0 DI Address input bit 0, connect to VDDM or GND

27 I/O[0] DIO

(*1)

I/O[0], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking

28 I/O[1] DIO

(*1)

I/O[1], at power-on configured as an input

LED driver : Intensity control (PWM), Blinking

(*1)

This pin is programmable through the I

C interface

Table 2 – SX1509B Pin Description

Figure 2 – SX1509B QFN-UT-28 Pinout

I/O[2]

I/O[3]

GND

VCC1

I/O[4]

I/O[5]

I/O[6]

I/O[7]

NINT

ADDR1

OSCIO

VDDM

I/O[8]

I/O[9]

I/O[14]

I/O[13]

I/O[12]

VCC2

GND

I/O[11]

I/O[10]

I/O[1]

I/O[0]

ADDR0

SCL

SDA

NRESET

I/O[15]

TOP VIEW

GND

(PAD)