I/O Expander. PCA9536 Datasheet

PCA9536 Expander. Datasheet pdf. Equivalent

Part PCA9536
Description Remote 4-Bit I2C and SMBus I/O Expander
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PCA9536
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PCA9536
SCPS125G – APRIL 2006 – REVISED JUNE 2014
PCA9536 Remote 4-Bit I2C and SMBus I/O Expander With Configuration Registers
1 Features
1 Available in the Texas Instruments NanoFree™
Package
• Low Standby Current Consumption of 1 μA Max
• I2C to Parallel Port Expander
• Operating Power-Supply Voltage Range of 2.3 V
to 5.5 V
• 5-V Tolerant I/O Ports
• 400-kHz Fast I2C Bus
• Input/Output Configuration Register
• Polarity Inversion Register
• Internal Power-On Reset
• No Glitch on Power Up
• Power-Up With All Channels Configured as Inputs
• Noise Filter on SCL/SDA Inputs
• Latched Outputs With High-Current Drive
Maximum 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)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
2 Description
This 4-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 PCA9536 features 4-bit Configuration (input or
output selection), Input Port, Output Port, and Polarity
Inversion (active high or active low) registers. At
power on, the I/Os are configured as inputs with a
weak pullup to VCC. However, the system master can
enable the I/Os as either inputs or outputs by writing
to the I/O configuration bits. If no signals are applied
externally to the PCA9536, the voltage level is 1, or
high, because of the internal pullup resistors. The
data for each input or output is stored in the
corresponding Input Port or Output Port 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.
The system master can reset the PCA9536 in the
event of a timeout or other improper operation by
utilizing the power-on reset feature, which puts the
registers in their default state and initializes the
I2C/SMBus state machine.
The device's outputs (latched) have high-current drive
capability for directly driving LEDs. It has low current
consumption.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
GSBGA (8)
1.90 mm × 0.90 mm
PCA9536
SOIC (8)
4.90 mm × 3.91 mm
VSSOP (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
D PACKAGE
(TOP VIEW)
DGK PACKAGE
(TOP VIEW)
YZP PACKAGE
(BOTTOM VIEW)
P0 1
P1 2
8
VCC
P0
1
P1 2
7 SDA P2 3
GND D1 4 5 D2 P3
8 VCC
P2 C1 3 6 C2 SCL
7 SDA
P1 B1 2 7 B2 SDA
P0 A1 1 8 A2 VCC
6 SCL
GND
4
5 P3
P2 3
6 SCL
GND
4
5 P3
See mechanical drawings for dimensions.
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.



PCA9536
PCA9536
SCPS125G – APRIL 2006 – REVISED JUNE 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Description ............................................................. 1
3 Revision History..................................................... 2
4 Pin Configuration and Functions ......................... 3
5 Specifications......................................................... 4
5.1 Absolute Maximum Ratings ..................................... 4
5.2 Handling Ratings....................................................... 4
5.3 Recommended Operating Conditions....................... 4
5.4 Electrical Characteristics........................................... 5
5.5 I2C Interface Timing Requirements........................... 6
5.6 Switching Characteristics .......................................... 6
5.7 Typical Characteristics .............................................. 7
6 Parameter Measurement Information ................ 10
7 Detailed Description ............................................ 12
7.1 Functional Block Diagram ....................................... 12
7.2 Feature Description................................................. 13
7.3 Programming........................................................... 13
8 Application and Implementation ........................ 19
8.1 Typical Application .................................................. 19
9 Power Supply Recommendations...................... 20
9.1 Power-On Reset Errata........................................... 20
10 Device and Documentation Support ................. 21
10.1 Trademarks ........................................................... 21
10.2 Electrostatic Discharge Caution ............................ 21
10.3 Glossary ................................................................ 21
11 Mechanical, Packaging, and Orderable
Information ........................................................... 21
3 Revision History
Changes from Revision F (September 2008) to Revision G
Page
• Added Power-On Reset Errata section. ............................................................................................................................... 20
2 Submit Documentation Feedback
Product Folder Links: PCA9536
Copyright © 2006–2014, Texas Instruments Incorporated





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