SMBus Repeater. PCA9515B Datasheet

PCA9515B Repeater. Datasheet pdf. Equivalent

Part PCA9515B
Description Dual Bidirectional I2C Bus and SMBus Repeater
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PCA9515B
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PCA9515B
SCPS232B – MARCH 2012 – REVISED MARCH 2016
PCA9515B Dual Bidirectional I2C Bus and SMBus Repeater
1 Features
1 Two-Channel Bidirectional Buffers
• I2C Bus and SMBus Compatible
• Support for I2C Standard Mode (100-kHz) and
Fast Mode (400-kHz)
• Active-High Repeater-Enable Input
• Open-Drain I2C Input and Output
• 5.5-V Tolerant I2C Input and Output and Enable
Input Support Mixed-Mode Signal Operation
• Lockup-Free Operation
• Accommodates Standard Mode, Fast Mode I2C
Devices, and Multiple Masters
• Supports Arbitration and Clock Stretching Across
Repeater
• Powered-Off High-Impedance I2C Pins
• Latch-Up Performance Exceeds 100-mA Per
JESD 78, Class I
• 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)
• Industrial Equipment
• Products with Many I2C Slaves and Long PCB
Traces
3 Description
The PCA9515B is a BiCMOS dual bidirectional buffer
integrated circuit intended for I2C bus and SMBus
applications. The device contains two identical
bidirectional open-drain buffer circuits that enables
I2C and similar bus systems to be extended (or add
slaves) without degrading system performance. The
dual bidirectional I2C buffer is operational at 2.3 V to
3.6 V VCC.
The PCA9515B buffers both the serial data (SDA)
and serial clock (SCL) signals on the I2C bus, while
retaining all the operating modes and features of the
I2C system. The device allows two buses, of 400-pF
bus capacitance, to be connected in an I2C
application.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
PCA9515B
VSSOP (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VCC VCC
VCC
I2C or SMBus
Master (e.g.
Processor)
VCC EN
SCL0
SDA0
PCA9515B
GND
SCL1
SDA1
I2C Slave
Devices
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.



PCA9515B
PCA9515B
SCPS232B – MARCH 2012 – REVISED MARCH 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......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 ESD Ratings ............................................................ 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information ................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Timing Requirements ................................................ 5
6.7 Switching Characteristics .......................................... 5
6.8 Typical Characteristics .............................................. 6
7 Parameter Measurement Information .................. 7
8 Detailed Description .............................................. 8
8.1 Overview ................................................................... 8
8.2 Functional Block Diagram ......................................... 9
8.3 Feature Description................................................... 9
8.4 Device Functional Modes........................................ 10
9 Application and Implementation ........................ 11
9.1 Application Information............................................ 11
9.2 Typical Application ................................................. 11
10 Power Supply Recommendations ..................... 12
11 Layout................................................................... 13
11.1 Layout Guidelines ................................................. 13
11.2 Layout Example .................................................... 13
12 Device and Documentation Support ................. 14
12.1 Documentation Support ....................................... 14
12.2 Community Resources.......................................... 14
12.3 Trademarks ........................................................... 14
12.4 Electrostatic Discharge Caution ............................ 14
12.5 Glossary ................................................................ 14
13 Mechanical, Packaging, and Orderable
Information ........................................................... 14
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (May 2013) to Revision B
Page
• Added Device Information table, 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
• Deleted the ordering information. See POA at the end of the datasheet............................................................................... 1
Changes from Original (March 2012) to Revision A
Page
• Updated the VOL and VOL - VILC specifications........................................................................................................................ 5
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