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LEVEL-TRANSLATING I C BUS REPEATER
2
SCPS157A – DECEMBER 2007 – REVISED FEBRUARY 2008
TERMINAL FUNCTIONS
NO.
1
2
3
4
5
6
7
8
NAME
V
CCA
SCLA
SDAA
GND
EN
SDAB
SCLB
V
CCB
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)
DESCRIPTION
FUNCTION TABLE
INPUT
EN
L
H
FUNCTION
Outputs disabled
SDAA = SDAB
SCLA = SCLB
FUNCTIONAL BLOCK DIAGRAM
V
CCA
1
V
CCB
8
3
SDAA
6
SDAB
2
SCLA
7
SCLB
V
CCB
Pullup
Resistor
5
EN
4
GND
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