sx1502i088trt Semtech Corporation, sx1502i088trt Datasheet

sx1502i088trt

Manufacturer Part Number

sx1502i088trt

Description

4/8/16 Channel Low Voltage Gpio With Nint And Nreset

Manufacturer

Semtech Corporation

Datasheet

1.SX1502I088TRT.pdf (34 pages)

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ADVANCED COMMUNICATIONS & SENSING

SX1501/SX1502/SX1503

4/8/16 Channel Low Voltage GPIO with NINT and NRESET

The SX1501, SX1502 and SX1503 are complete ultra

low voltage General Purpose parallel Input/Output

(GPIO) expanders ideal for low power handheld

battery powered equipment. They allow easy serial

expansion of I/O through a standard I

GPIO devices can provide additional control and

monitoring when the microcontroller or chipset has

insufficient I/O ports, or in systems where serial

communication and control from a remote location is

advantageous.

These devices can also act as a level shifter to

connect a microcontroller running at one voltage level

to a component running at a different voltage level.

The core is operating as low as 1.2V while the I/O

banks

independent of the core voltage and each other.

Each GPIO is programmable via 8-bit configuration

registers. Data registers, direction registers, pull-

up/pull-down registers, interrupt mask registers and

interrupt registers allow the system master to

program and configure 4 or 8 or 16-GPIOs using a

standard 400kHz I

The SX1501, SX1502 and SX1503 offer a unique

fully programmable logic functions like a PLD to give

more flexibility and reduce external logic gates used

for standard applications.

The SX1501, SX1502 and SX1503 have the ability to

generate mask-programmable interrupts based on

falling/rising edge of any of its GPIO lines. A

dedicated pin indicates to a host controller that a

state change occurred in one or more of the GPIO

lines.

The SX1501, SX1502 and SX1503 each come in a

small QFN-UT-20/28 package as well as a TSSOP-

20/28 package. All devices are rated from -40° C to

+85° C temperature range.

(1)

(2)

Rev 7 – 2

SX1501I088TRT

SX1502I088TRT

SX1503I089TRT

Future products

SX1502I087TRT based, unique evaluation kit for the three parts.

ENERAL

RDERING

SX1501I087TRT

SX1502I087TRT

SX1503I091TRT

SX1502EVK

Part Number

can

Oct. 2008

ESCRIPTION

NFORMATION

operate

(2)

(1)

C interface.

I/O Channels

between

1.2V

Evaluation Kit

QFN-UT-20

QFN-UT-28

TSSOP-20

TSSOP-28

C interface.

Package

and

5.5V

4/8/16 Channel Low Voltage GPIO

YPICAL

4/8/16 channel of I/Os

1.2V to 5.5V independent operating voltage for

all supply rails (VDDM, VCC1, VCC2)

5.5V compatible I/Os, up to 24mA output sink

(no total sink current limit)

Fully programmable logic functions (PLD)

400kHz 2-wire I

Open drain active low interrupt output (NINT)

Power-On Reset and reset input (NRESET)

Ultra low current consumption of typ. 1uA

-40° C to +85° C operating temperature range

Ultra-Thin 3x3mm QFN-UT-20 and TSSOP-20

packages (SX1501/SX1502)

Ultra-Thin 4x4mm QFN-UT-28 and TSSOP-28

packages (SX1503)

Cell phones, PDAs, MP3 players

Digital camera

Portable multimedia player

Notebooks

GPS Units

Industrial, ATE

Any battery powered equipment

RODUCT

Bit maskable

Programmable edge sensitivity

True bi-directional style I/O

Programmable Pull-up/Pull-down

Push/Pull outputs

PPLICATIONS

SX1501/SX1502/SX1503

EATURES

C compatible slave interface

www.semtech.com

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sx1502i088trt Summary of contents

Page 1

... C temperature range RDERING NFORMATION Part Number I/O Channels SX1501I087TRT 4 SX1502I087TRT 8 SX1503I091TRT 16 (1) SX1501I088TRT 4 (1) SX1502I088TRT 8 (1) SX1503I089TRT 16 (2) SX1502EVK 8 (1) Future products (2) SX1502I087TRT based, unique evaluation kit for the three parts. nd Rev 7 – 2 Oct. 2008 4/8/16 Channel Low Voltage GPIO K ...

Page 2

ADVANCED COMMUNICATIONS & SENSING G D ..................................................................................................................... 1 ENERAL ESCRIPTION O I ................................................................................................................... 1 RDERING NFORMATION .................................................................................................................. 1 EY RODUCT EATURES T A ..................................................................................................................... 1 YPICAL PPLICATIONS 1 P ...................................................................................................................... 4 IN DESCRIPTION 1.1 SX1501 4-channel GPIO ...

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ADVANCED COMMUNICATIONS & SENSING 6.4 Level Shifter Implementation Hints ACKAGING NFORMATION 7.1 QFN-UT 20-pin Outline Drawing 7.2 QFN-UT 20-pin Land Pattern 7.3 QFN-UT 28-pin Outline Drawing 7.4 QFN-UT 28-pin Land Pattern 7.5 TSSOP 20-pin Outline Drawing 7.6 ...

Page 4

ADVANCED COMMUNICATIONS & SENSING DESCRIPTION 1.1 SX1501 4-channel GPIO Pin Symbol 1 NRESET 2 SDA 3 NC1 4 SCL 5 I/O[0] 6 I/O[1] 7 VCC1 8 GND 9 I/O[2] 10 I/O[3] 11 NINT 12 ADDR 13 NC2 ...

Page 5

ADVANCED COMMUNICATIONS & SENSING 1.2 SX1502 8-channel GPIO Pin Symbol 1 NRESET 2 SDA 3 NC1 4 SCL 5 I/O[0] 6 I/O[1] 7 VCC1 8 GND 9 I/O[2] 10 I/O[3] 11 NINT 12 ADDR 13 NC2 14 VDDM 15 I/O[4] ...

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ADVANCED COMMUNICATIONS & SENSING 1.3 SX1503 16-channel GPIO Pin Symbol 1 GND 2 I/O[2] 3 I/O[3] 4 VCC1 5 I/O[4] 6 I/O[5] 7 GND 8 I/O[6] 9 I/O[7] 10 NINT VDDM 13 I/O[8] 14 I/O[9] 15 GND ...

Page 7

ADVANCED COMMUNICATIONS & SENSING LECTRICAL HARACTERISTICS 2.1 Absolute Maximum Ratings Stress above the limits listed in the following table may cause permanent failure. Exposure to absolute ratings for extended time periods may affect device reliability. The limiting ...

Page 8

ADVANCED COMMUNICATIONS & SENSING Symbol Description t Interrupt reset timing IR NRESET (Input/Output) VOL Low level output voltage IOL Low level output sink current M VIH High level input voltage MR VIL Low level input voltage M VHYS Hysteresis of ...

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ADVANCED COMMUNICATIONS & SENSING Symbol Description Fall time of both SDA and t f SCL signals Set-up time for STOP t SU;STO condition Bus free time between a t BUF STOP and START condition Capacitive load for each bus C ...

Page 10

ADVANCED COMMUNICATIONS & SENSING YPICAL PERATING HARACTERISTICS Figures below apply to default registers values (Boost Mode Off), Tamb, unless otherwise specified. 3.1 IDDM vs. VDDM 3.5 3 2.5 2 IDDM (uA) 1 ...

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ADVANCED COMMUNICATIONS & SENSING 0.15 0.1 VOL (V) 0. Doesn’t vary significantly with temperature 3.3 VOH vs. IOH 1.2 1.18 1.16 VOH (V) 1.14 1.12 1 Doesn’t vary significantly with temperature 5.5 5.4 5.3 VOH ...

Page 12

ADVANCED COMMUNICATIONS & SENSING 3.4 ICC1+ICC2 vs. VCC1,2 when Boost Mode is ON ICC1+ICC2 vs VCC1,2 (VDDM = 1.2V) 700 600 500 400 ICC (uA) 300 200 100 0 0.4 0.8 1.2 1.6 0 ICC1+ICC2 vs VCC1,2 (VDDM = 5.5V) ...

Page 13

ADVANCED COMMUNICATIONS & SENSING LOCK ETAILED ESCRIPTION 4.1 SX1501 4-channel GPIO VDDM Reset NRESET SCL Input Filter SDA ADDR 4.2 SX1502 8-channel GPIO VDDM Reset NRESET SCL Input Filter SDA ADDR nd Rev 7 – 2 ...

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ADVANCED COMMUNICATIONS & SENSING 4.3 SX1503 16-channel GPIO VDDM Reset NRESET SCL Input Filter SDA 4.4 Reset (NRESET) The SX1501, SX1502 and SX1503 generate their own power on reset signal after a power supply is connected to the VDDM pin. ...

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ADVANCED COMMUNICATIONS & SENSING 3. In operation, the SX1501, SX1502 and SX1503 may be reset at anytime by an external device driving NRESET low during t PULSE 4. During a brown-out event, if VDDM drops above VDROPH a reset will ...

Page 16

ADVANCED COMMUNICATIONS & SENSING Please note that SX1503 implements register address auto-increment i.e. after the Data ACK from Slave the master can write further bytes and the interface will handle the register address increment automatically. Finally the master terminates the ...

Page 17

ADVANCED COMMUNICATIONS & SENSING Master operations SX1501, SX1502 or SX1503 operations (Slave) S: Start Condition W: Write = ‘0’ R: Read = ‘1’ A: Acknowledge (sent by slave) NACK: Non-Acknowledge (sent by master) Sr: Repeated Start Condition P: Stop condition ...

Page 18

ADVANCED COMMUNICATIONS & SENSING 4.7.2 SX1502 The SX1502 I/Os can be configured as per the SX1501, and can additionally be configured to provide a 2-to-1 logic function on I/O[4-6], 3-to-1 logic function on I/O[4-7], or 3-to-2 logic decode on I/O[0-4]. ...

Page 19

ADVANCED COMMUNICATIONS & SENSING 4.7.4 Tutorial The generic method described in this paragraph can be applied to any of the SX1501, SX1502 or SX1503. Example: We want to implement an AND gate between I/O[0] and IO[1] on SX1502 1. Identify ...

Page 20

ADVANCED COMMUNICATIONS & SENSING ONFIGURATION EGISTERS 5.1 SX1501 4-channel GPIO Address Name 0x00 RegData 0x01 RegDir 0x02 RegPullUp 0x03 RegPullDown 0x04 Reserved 0x05 RegInterruptMask 0x06 RegSenseHigh 0x07 RegSenseLow 0x08 RegInterruptSource 0x09 RegEventStatus 0x10 RegPLDMode 0x11 RegPLDTable0 0x12 ...

Page 21

ADVANCED COMMUNICATIONS & SENSING Addr Name Default RegEventStatus 0x10 RegPLDMode 0x00 0x11 RegPLDTable0 0x00 0x12 RegPLDTable1 0xXX 0x13 RegPLDTable2 0x00 0x14 0xXX RegPLDTable3 0x15 RegPLDTable4 0xXX 0xAB RegAdvanced 0x00 Table 13 – SX1501 Configuration Registers Description 5.2 SX1502 8-channel GPIO ...

Page 22

ADVANCED COMMUNICATIONS & SENSING Addr Name Default 0x02 RegPullUp 0x00 0x03 RegPullDown 0x00 0x04 Reserved 0xXX 0x05 RegInterruptMask 0xFF 0x06 RegSenseHigh 0x00 0x07 RegSenseLow 0x00 0x08 RegInterruptSource 0x00 0x09 RegEventStatus 0x00 0x10 0x00 RegPLDMode 0x11 RegPLDTable0 0x00 0x12 RegPLDTable1 0x00 ...

Page 23

ADVANCED COMMUNICATIONS & SENSING Addr Name Default 0x14 RegPLDTable3 0x00 0x15 RegPLDTable4 0x00 0xAB RegAdvanced 0x00 Table 15 – SX1502 Configuration Registers Description 5.3 SX1503 16-channel GPIO Address Name 0x00 RegDataB 0x01 RegDataA 0x02 RegDirB 0x03 RegDirA 0x04 RegPullUpB 0x05 ...

Page 24

ADVANCED COMMUNICATIONS & SENSING Addr Name Default 0x00 0xFF RegDataB 0x01 RegDataA 0xFF 0x02 RegDirB 0xFF 0x03 RegDirA 0xFF 0x04 RegPullUpB 0x00 0x05 RegPullUpA 0x00 0x06 RegPullDownB 0x00 0x07 RegPullDownA 0x00 0x08 RegInterruptMaskB 0xFF 0x09 RegInterruptMaskA 0xFF 0x0A RegSenseHighB 0x00 ...

Page 25

ADVANCED COMMUNICATIONS & SENSING Addr Name Default 0x11 RegEventStatusA 0x00 0x20 RegPLDModeB 0x00 0x21 RegPLDModeA 0x00 0x22 RegPLDTable0B 0x00 0x23 RegPLDTable0A 0x00 0x24 RegPLDTable1B 0x00 0x25 RegPLDTable1A 0x00 0x26 0x00 nd Rev 7 – 2 Oct. 2008 4/8/16 Channel Low ...

Page 26

ADVANCED COMMUNICATIONS & SENSING Addr Name Default RegPLDTable2B 0x27 RegPLDTable2A 0x00 0x28 RegPLDTable3B 0x00 0x29 RegPLDTable3A 0x00 0x2A RegPLDTable4B 0x00 0x2B RegPLDTable4A 0x00 0xAD RegAdvanced 0x00 Table 17 – SX1503 Configuration Registers Description nd Rev 7 – 2 Oct. 2008 ...

Page 27

ADVANCED COMMUNICATIONS & SENSING PPLICATION NFORMATION 6.1 Typical Application Circuit Host controller I/O SCL SDA I/O Optional (depends on the application) 6.2 Typical LED Operation Typical LED operation is described below. The LED is usually connected to ...

Page 28

ADVANCED COMMUNICATIONS & SENSING 6.2.2 LED Intensity Control When the max IOL spec is not enough it is possible to drive simultaneously multiple I/Os connected together hence increasing the total sink capability. Example SX1502, by driving an LED ...

Page 29

ADVANCED COMMUNICATIONS & SENSING ACKAGING NFORMATION 7.1 QFN-UT 20-pin Outline Drawing QFN-UT 20-pin mm, 0.4 mm pitch Figure 15 - Packaging Information – QFN-UT 20-pin Outline Drawing 7.2 QFN-UT 20-pin Land Pattern Figure 16 ...

Page 30

ADVANCED COMMUNICATIONS & SENSING 7.3 QFN-UT 28-pin Outline Drawing QFN-UT 28-pin mm, 0.4 mm pitch Figure 17 - Packaging Information – QFN-UT 28-pin Outline Drawing 7.4 QFN-UT 28-pin Land Pattern Figure 18 - Packaging Information – QFN-UT ...

Page 31

ADVANCED COMMUNICATIONS & SENSING 7.5 TSSOP 20-pin Outline Drawing Figure 19 - Packaging Information – TSSOP 20-pin Outline Drawing 7.6 TSSOP 20-pin Land Pattern Figure 20 - Packaging Information – TSSOP 20-pin Land Pattern nd Rev 7 – 2 Oct. ...

Page 32

ADVANCED COMMUNICATIONS & SENSING 7.7 TSSOP 28-pin Outline Drawing Figure 21 - Packaging Information – TSSOP 28-pin Outline Drawing 7.8 TSSOP 28-pin Land Pattern Figure 22 - Packaging Information – TSSOP 28-pin Land Pattern nd Rev 7 – 2 Oct. ...

Page 33

ADVANCED COMMUNICATIONS & SENSING OLDERING ROFILE The soldering reflow profile for the SX1501, SX1502 and SX1503 is described in the standard IPC/JEDEC J- STD-020C. For detailed information please go to Figure 23 - Classification Reflow Profile (IPC/JEDEC ...

Page 34

... Semtech and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs damages and attorney fees which could arise. Contact Information Semtech Corporation Advanced Communications and Sensing Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805) 498-2111 Fax: (805) 498-3804 nd Rev 7 – ...

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