PCA9517 Datasheet, PDF (3/17 Pages) NXP Semiconductors – Level translating I2C-bus repeater

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NO.
NAME
1
V_CCA
2
SCLA
3
SDAA
4
GND
5
EN
6
SDAB
7
SCLB
8
V_CCB
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 V_CCA through a pullup resistor.
Serial data bus, A side. Connect to V_CCA through a pullup resistor.
Supply ground
Active-high repeater enable input
Serial data bus, B side. Connect to V_CCB through a pullup resistor.
Serial clock bus, B side. Connect to V_CCB 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
V_CCA
V_CCB
1
8
3
SDAA
6
SDAB
2
SCLA
5
EN
V_CCB
Pullup
Resistor
4
GND
7
SCLB
Copyright © 2007–2008, Texas Instruments Incorporated
Product Folder Link(s): PCA9517
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