SX1504 datasheet(4/33 Pages) SEMTECH

Part #	SX1504

Description	4/8/16 Channel GPIO with NINT and NRESET

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Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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ADVANCED COMMUNICATIONS & SENSING

Rev 1 – 3

rd Oct. 2008

www.semtech.com

4

SX1504/SX1505/SX1506

4/8/16 Channel GPIO

1

PIN DESCRIPTION

1.1

SX1504 4-channel GPIO

Symbol

Type

Description

1

NRESET

DIO

Active low reset

2

SDA

DIO

I

2C serial data line

3

NC1

-

Leave open, not connected

4

SCL

DI

I

2C serial clock line

5

I/O[0]

DIO

(*1)

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

6

I/O[1]

DIO

(*1)

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

7

VCC1

P

I/O supply voltage

8

GND

P

Ground Pin

9

I/O[2]

DIO

(*1)

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

High sink I/O.

10

I/O[3]

DIO

(*1)

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

High sink I/O.

11

NINT

DO

Active low interrupt output

12

ADDR

DI

Address input, connect to VDDM or GND

13

NC2

-

Leave open, not connected

14

VDDM

P

Main supply voltage

15

NC3

-

Leave open, not connected

16

NC4

-

Leave open, not connected

17

NC7

-

Connect to VCC1

18

GND

P

Ground Pin

19

NC5

-

Leave open, not connected

20

NC6

-

Leave open, not connected

A: Analog

D: Digital

I: Input

O: Output

P: Power

(*1) This pin is programmable through the I

2C interface

Table 1 – SX1504 Pin Description

Figure 1 – SX1504 QFN-UT-20 Pinout

NRESET

SDA

NC1

SCL

I/O[0]

NC3

VDDM

NC2

ADDR

NINT

GND

(PAD)

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