Datasheet

PCA9527_1 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 01 — 29 June 2009 3 of 22
NXP Semiconductors
PCA9527
3-channel bidirectional bus extender for HDMI, I
2
C-bus and SMBus
4. Functional diagram
5. Pinning information
5.1 Pinning
5.2 Pin description
Fig 1. Functional diagram of PCA9527
002aad970
PCA9527
SCLA
CECA
EN
SCLB
CECB
V
CC(A)
V
CC(B)
GND
V
CC(B)
100 kΩ
V
CC(A)
DYNAMIC
PULL-UP
SDAA SDAB
V
CC(A)
DYNAMIC
PULL-UP
Fig 2. Pin configuration for TSSOP10
PCA9527DP
V
CC(A)
V
CC(B)
SCLA SCLB
SDAA SDAB
CECA CECB
GND EN
002aad969
1
2
3
4
5
6
8
7
10
9
Table 2. Pin description
Symbol Pin Description
V
CC(A)
1 port A supply voltage (2.7 V to 5.5 V)
SCLA 2 serial clock port A bus with rise time accelerator for DDC line or cable,
5 V tolerant
SDAA 3 serial data port A bus with rise time accelerator for DDC line or cable,
5 V tolerant
CECA 4 serial data with normal I/O powered by V
CC(B)
, 5 V tolerant