PCA9517 View Datasheet(PDF) - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS
Part Name
Description
Manufacturer
PCA9517 Datasheet PDF : 17 Pages
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www.ti.com
NO.
NAME
1
VCCA
2
SCLA
3
SDAA
4
GND
5
EN
6
SDAB
7
SCLB
8
VCCB
PCA9517
LEVEL-TRANSLATING I2C BUS REPEATER
SCPS157A – DECEMBER 2007 – REVISED FEBRUARY 2008
TERMINAL FUNCTIONS
DESCRIPTION
A-side supply voltage (0.9 V to 5.5 V)
Serial clock bus, A side. Connect to VCCA through a pullup resistor.
Serial data bus, A side. Connect to VCCA through a pullup resistor.
Supply ground
Active-high repeater enable input
Serial data bus, B side. Connect to VCCB through a pullup resistor.
Serial clock bus, B side. Connect to VCCB through a pullup resistor.
B-side and device supply voltage (2.7 V to 5.5 V)
FUNCTION TABLE
INPUT
EN
L
H
FUNCTION
Outputs disabled
SDAA = SDAB
SCLA = SCLB
FUNCTIONAL BLOCK DIAGRAM
VCCA
VCCB
1
8
3
SDAA
6
SDAB
2
SCLA
5
EN
VCCB
Pullup
Resistor
4
GND
7
SCLB
Copyright © 2007–2008, Texas Instruments Incorporated
Product Folder Link(s): PCA9517
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