SX1508QBIULTRT datasheet(5/37 Pages) SEMTECH

Part #	SX1508QBIULTRT

Description	World?셲 Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine

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Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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ADVANCED COMMUNICATIONS & SENSING

Rev 4 – 26

th April 2011

5

www.semtech.com

SX1508QB/SX1509QB

World’s Lowest Voltage Level Shifting GPIO

with LED Driver and Keypad Engine

1.2

SX1509QB 16-channel I

2C GPIO with LED Driver and Keypad Engine

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

2C serial data line

25

SCL

DI

I

2C 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 I2C interface

Table 2 – SX1509QB Pin Description

Figure 2 – SX1509QB QFN-UT-28 Pinout

I/O[2]

I/O[3]

GND

VCC1

I/O[4]

I/O[5]

I/O[6]

I/O[14]

I/O[13]

I/O[12]

VCC2

GND

I/O[11]

I/O[10]

TOP VIEW

GND

(PAD)

21

20

19

18

17

16

15

1

2

3

4

5

6

7

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