PCA9545C View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
PCA9545C Datasheet PDF : 32 Pages
| |||
NXP Semiconductors
PCA9545A/45B/45C
4-channel I2C-bus switch with interrupt logic and reset
5.2 Pin description
Table 3.
Symbol
A0
A1
RESET
INT0
SD0
SC0
INT1
SD1
SC1
VSS
INT2
SD2
SC2
INT3
SD3
SC3
INT
SCL
SDA
VDD
Pin description
Pin
SO20, TSSOP20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
HVQFN20
19
20
1
2
3
4
5
6
7
8[1]
9
10
11
12
13
14
15
16
17
18
Description
address input 0
address input 1
active LOW reset input
active LOW interrupt input 0
serial data 0
serial clock 0
active LOW interrupt input 1
serial data 1
serial clock 1
supply ground
active LOW interrupt input 2
serial data 2
serial clock 2
active LOW interrupt input 3
serial data 3
serial clock 3
active LOW interrupt output
serial clock line
serial data line
supply voltage
[1] HVQFN20 package die supply ground is connected to both the VSS pin and the exposed center pad. The
VSS pin must be connected to supply ground for proper device operation. For enhanced thermal, electrical,
and board-level performance, the exposed pad must be soldered to the board using a corresponding
thermal pad on the board, and for proper heat conduction through the board thermal vias must be
incorporated in the PCB in the thermal pad region.
PCA9545A_45B_45C
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 9 — 5 May 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
5 of 32
Share Link: 