900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






etcTI

TCA9539 Datasheet Preview

TCA9539 Datasheet

Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander

No Preview Available !

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TCA9539
SCPS202C – OCTOBER 2009 – REVISED MAY 2016
TCA9539 Low Voltage 16-Bit I2C and SMBus Low-Power I/O Expander with Interrupt
Output, Reset Pin, and Configuration Registers
1 Features
1 I2C to Parallel Port Expander
• Low Standby-Current Consumption
• 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
• Input and Output Configuration Register
• Polarity Inversion Register
• Internal Power-on Reset
• No Glitch on Power Up
• Noise Filter on SCL and SDA Inputs
• 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 Applications
• Servers
• Routers (Telecom Switching Equipment)
• Personal Computers, smartphones
• Industrial Automation
• I2C GPIO Expansion
3 Description
The TCA9539 is a 24-pin device that provides 16 bits
of general purpose parallel input and output (I/O)
expansion for the two-line bidirectional I2C bus (or
SMBus protocol). The device can operate with a
power supply voltage (VCC) range from 1.65 V to 5.5
V. The device supports 100-kHz (I2C Standard mode)
and 400-kHz (I2C Fast mode) clock frequencies. I/O
expanders such as the TCA9539 provide a simple
solution when additional I/Os are needed for
switches, sensors, push-buttons, LEDs, fans, and
other similar devices.
The features of the TCA9539 include an interrupt that
is generated on the INT pin whenever an input port
changes state. The A0 and A1 hardware selectable
address pins allow up to four TCA9539 devices on
the same I2C bus. The device can be reset to its
default state by cycling the power supply and causing
a power-on-reset. Also, the TCA9539 has a hardware
RESET pin that can be used to reset the device to its
default state.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TSSOP (24)
7.80 mm × 4.40 mm
TCA9539
WQFN (24)
4.00 mm × 4.00 mm
VQFN (24)
4.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
I2C or SMBus
Master
(e.g. Processor)
SDA
SCL
INT
RESET
A0
A1
GND
VCC
TCA9539
Peripheral Devices
P00
P01
x /RESET,
ENABLE,
or control
inputs
x /INT or
status
P17
outputs
x LEDs
Copyright © 2016, Texas Instruments Incorporated
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.




etcTI

TCA9539 Datasheet Preview

TCA9539 Datasheet

Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander

No Preview Available !

TCA9539
SCPS202C – OCTOBER 2009 – REVISED MAY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ..................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 6
6.6 I2C Interface Timing Requirements.......................... 7
6.7 RESET Timing Requirements................................... 8
6.8 Switching Characteristics .......................................... 8
6.9 Typical Characteristics .............................................. 9
7 Parameter Measurement Information ................ 12
8 Detailed Description ............................................ 16
8.1 Overview ................................................................. 16
8.2 Functional Block Diagram ....................................... 17
8.3 Feature Description................................................. 18
8.4 Device Functional Modes........................................ 19
8.5 Programming .......................................................... 19
8.6 Register Maps ........................................................ 21
9 Application and Implementation ........................ 26
9.1 Application Information............................................ 26
9.2 Typical Application ................................................. 26
10 Power Supply Recommendations ..................... 29
10.1 Power-On Reset Requirements ........................... 29
11 Layout................................................................... 31
11.1 Layout Guidelines ................................................. 31
11.2 Layout Example .................................................... 32
12 Device and Documentation Support ................. 33
12.1 Documentation Support ........................................ 33
12.2 Community Resources.......................................... 33
12.3 Trademarks ........................................................... 33
12.4 Electrostatic Discharge Caution ............................ 33
12.5 Glossary ................................................................ 33
13 Mechanical, Packaging, and Orderable
Information ........................................................... 33
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (October 2015) to Revision C
Page
• Made changes to Interrupt (INT) Output and Reads section ................................................................................................. 1
• Made changes to Recommended Operating Conditions........................................................................................................ 1
• Made changes to Electrical Characteristics............................................................................................................................ 1
• Added IOL for different Tj ........................................................................................................................................................ 5
• Removed ΔICC spec from the Electrical Characteristics table, added ΔICC typical characteristics graph ............................. 6
• Changed ICC standby into different input states, with increased maximums ......................................................................... 7
• Changed Cio maximum .......................................................................................................................................................... 7
• Removed ΔICC spec from the Electrical Characteristics table, added ΔICC typical characteristics graph ............................. 7
• Clarified interrupt reset time (tir) with respect to falling edge of ACK related SCL pulse. ................................................... 13
• Updated Figure 33 and Figure 34 ........................................................................................................................................ 25
• Power on reset requirements relaxed ................................................................................................................................. 29
Changes from Revision A (September 2009) to Revision B
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section. ................................................................................................ 1
• Added RGE package.............................................................................................................................................................. 1
• Added Thermal Information table .......................................................................................................................................... 6
• Added "Time to reset; VCC = 1.65 V - 2.3 V" parameter to RESET Timing Requirements table. ......................................... 8
• Added "Output data valid; VCC = 1.65 V - 2.3 V to Switching Characteristics table. ............................................................. 8
2
Submit Documentation Feedback
Product Folder Links: TCA9539
Copyright © 2009–2016, Texas Instruments Incorporated


Part Number TCA9539
Description Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander
Maker etcTI
PDF Download

TCA9539 Datasheet PDF






Similar Datasheet

1 TCA9534 Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander
etcTI
2 TCA9534A Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander
etcTI
3 TCA9535 Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander
etcTI
4 TCA9538 Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander
etcTI
5 TCA9539 Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander
etcTI
6 TCA9539-Q1 Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander
etcTI





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy