I/O Expander. PCA9539 Datasheet

PCA9539 Expander. Datasheet pdf. Equivalent

Part PCA9539
Description Remote 16-Bit I2C and SMBus Low-Power I/O Expander
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PCA9539
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PCA9539
SCPS130G – AUGUST 2005 – REVISED JUNE 2014
PCA9539 Remote 16-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output,
Reset, and Configuration Registers
1 Features
1 Low Standby-Current Consumption of 1 μA Max
• I2C to Parallel Port Expander
• Open-Drain Active-Low Interrupt Output
• Active-Low Reset Input
• 5-V Tolerant I/O Ports
• Compatible With Most Microcontrollers
• 400-kHz Fast I2C Bus
• Polarity Inversion Register
• Address by Two Hardware Address Pins for Use
of up to Four Devices
• Latched Outputs With High-Current Drive
Capability for Directly Driving LEDs
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
2 Description
This 16-bit I/O expander for the two-line bidirectional
bus (I2C) is designed for 2.3-V to 5.5-V VCC
operation. It provides general-purpose remote I/O
expansion for most microcontroller families via the I2C
interface [serial clock (SCL), serial data (SDA)].
The PCA9539 consists of two 8-bit Configuration
(input or output selection), Input Port, Output Port,
and Polarity Inversion (active-high or active-low
operation) registers. At power-on, the I/Os are
configured as inputs. The system master can enable
the I/Os as either inputs or outputs by writing to the
I/O configuration bits. The data for each input or
output is kept in the corresponding Input or output
register. The polarity of the Input Port register can be
inverted with the Polarity Inversion register. All
registers can be read by the system master.
PART NUMBER
PCA9539
Device Information(1)
PACKAGE
BODY SIZE (NOM)
SSOP (24)
8.20 mm × 5.30 mm
TVSOP (24)
5.00 mm × 4.40 mm
SOIC (24)
15.40 mm × 7.50 mm
TSSOP (24)
7.80 mm × 4.40 mm
VQFN (24)
4.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
DB, DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
INT
A1
RESET
P00
P01
P02
P03
P04
P05
P06
P07
GND
1
2
3
4
5
6
7
8
9
10
11
12
24 VCC
23 SDA
22 SCL
21 A0
20 P17
19 P16
18 P15
17 P14
16 P13
15 P12
14 P11
13 P10
RGE PACKAGE
(TOP VIEW)
24 23 22 21 20 19
P00 1
18 A0
P01 2
17 P17
P02 3
16 P16
P03 4
15 P15
P04 5
14 P14
P05 6
13 P13
7 8 9 10 11 12
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



PCA9539
PCA9539
SCPS130G – AUGUST 2005 – REVISED JUNE 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Description ............................................................. 1
3 Revision History..................................................... 2
4 Description (Continued) ........................................ 3
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ..................................... 5
6.2 Handling Ratings....................................................... 5
6.3 Recommended Operating Conditions....................... 5
6.4 Electrical Characteristics........................................... 6
6.5 I2C Interface Timing Requirements.......................... 7
6.6 RESET Timing Requirements................................... 7
6.7 Switching Characteristics .......................................... 7
6.8 Typical Characteristics .............................................. 8
7 Parameter Measurement Information ................ 10
8 Detailed Description ............................................ 14
8.1 Functional Block Diagram ....................................... 14
8.2 Device Functional Modes........................................ 16
8.3 Programming........................................................... 17
9 Application And Implementation........................ 24
9.1 Typical Application ................................................. 24
10 Power Supply Recommendations ..................... 26
10.1 Power-On Reset Requirements ........................... 26
10.2 Power-On Reset Errata......................................... 27
11 Device and Documentation Support ................. 28
11.1 Trademarks ........................................................... 28
11.2 Electrostatic Discharge Caution ............................ 28
11.3 Glossary ................................................................ 28
12 Mechanical, Packaging, and Orderable
Information ........................................................... 28
3 Revision History
Changes from Revision F (January 2011) to Revision G
Page
• Added RESET Errata section. .............................................................................................................................................. 16
• Added Interrupt Errata section.............................................................................................................................................. 17
• Power-On Reset Errata section............................................................................................................................................ 27
2 Submit Documentation Feedback
Product Folder Links: PCA9539
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