Datasheet

PCA9517_3 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 03 — 30 January 2007 7 of 19
NXP Semiconductors
PCA9517
Level translating I
2
C-bus repeater
Fig 7. Typical application of PCA9517 driving a short cable
Fig 8. Bus A (0.9 V to 5.5 V bus) waveform
Fig 9. Bus B (2.7 V to 5.5 V) waveform
002aac637
V
CCB
V
CCA
SDAA SDAB
SCLA SCLB
10 kΩ 10 kΩ
V
CCB
V
CCA
R
PU
GND
75 Ω
75 Ω
R
PU
10 kΩ
(optional)
MASTER
OR
SLAVE
CARD 1
CARD 2
EN
002aac775
9th clock pulse
acknowledge
SCL
SDA
002aac205
9th clock pulse
acknowledge
SCL
SDA
V
OL
of slave
V
OL
of PCA9517