TCA9517A Datasheet, PDF (3/17 Pages) Texas Instruments – LEVEL-TRANSLATING I2C BUS REPEATER

TCA9517A
www.ti.com
NO.
1
2
3
4
5
6
7
8
NAME
V_CCA
SCLA
SDAA
GND
EN
SDAB
SCLB
V_CCB
SCPS245A – DECEMBER 2012 – REVISED APRIL 2013
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)
Table 1. FUNCTION TABLE
INPUT
EN
L
H
FUNCTION
Outputs disabled
SDAA = SDAB
SCLA = SCLB
Figure 1. 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
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