PCA9515A Datasheet, PDF (1/13 Pages) NXP Semiconductors – I2C-bus repeater

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PCA9515A
DUAL BIDIRECTIONAL I²C BUS AND SMBus REPEATER
SCPS150A – DECEMBER 2005 – REVISED JUNE 2006
FEATURES
• Two-Channel Bidirectional Buffers
• I²C Bus and SMBus Compatible
• Active-High Repeater-Enable Input
• Open-Drain I²C I/O
• 5.5-V Tolerant I²C I/O and Enable Input
Support Mixed-Mode Signal Operation
• Lockup-Free Operation
• Accommodates Standard Mode and Fast
Mode I²C Devices and Multiple Masters
• Supports Arbitration and Clock Stretching
Across the Repeater
• Powered-Off High-Impedance I²C Pins
• 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)
D, DCT, DGK, OR PW PACKAGE
(TOP VIEW)
NC 1
SCL0 2
SDA0 3
GND 4
8 V_CC
7 SCL1
6 SDA1
5 EN
NC – No internal connection
DESCRIPTION/ORDERING INFORMATION
This dual bidirectional I²C buffer is operational at 2.3-V to 3.6-V V_CC.
The PCA9515A is a BiCMOS integrated circuit intended for I²C bus and SMBus systems applications. The
device contains two identical bidirectional open-drain buffer circuits that enable I²C and similar bus systems to
be extended without degradation of system performance. Both buffers specifically are designed to support the
standard low-level-contention arbitration of the I²C bus and support clock stretching.
The PCA9515A 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. This enables two buses of 400-pF bus capacitance to be
connected in an I²C application.
The I²C bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9515A
enables the system designer to isolate two halves of a bus, accommodating more I²C devices or longer trace
lengths.
T_A
–40°C to 85°C
ORDERING INFORMATION
PACKAGE ⁽¹⁾
ORDERABLE PART NUMBER
Tube of 75
PCA9515AD
SOIC – D
Reel of 2500
PCA9515ADR
Reel of 250
PCA9515ADT
SSOP – DCT
Reel of 3000
Reel of 250
PCA9515ADCTR
PCA9515ADCTT
Tube of 150
PCA9515APW
TSSOP – PW
Reel of 2000
PCA9515APWR
Reel of 250
PCA9515APWT
VSSOP – DGK
Reel of 2500
PCA9515ADGKR
TOP-SIDE MARKING⁽²⁾
PD515A
PREVIEW
PD515A
7B_
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
(2) DCT: The actual top-side marking has three additional characters that designate the year, month, and assembly/test site.
DGK: The actual top-side marking has one additional character that designates the assembly/test site.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2006, Texas Instruments Incorporated