Shop by Department
All
0 0
0
No products in the cart.
LoginRegister
Back to Products
0
No products in the cart.
Menu Categories Search Cart
TCA9545APWR
TCA9545APWR

TCA9545APWR

$1.40

The TCA9545A is a quad bidirectional translating
switch controlled via the I
2
C bus. The SCL/SDA
upstream pair fans out to four downstream pairs, or
channels.
Any
individual
SCn/SDn
channel
or
combination of channels can be selected, determined
by the contents of the programmable control register.
Four interrupt inputs (INT3–INT0), one for each of the
downstream pairs, are provided. One interrupt (INT)
output acts as an AND of the four interrupt inputs.
An
active-low
reset
(RESET)
input
allows
the
TCA9545A to recover from a situation in which one of
the downstream I
2
C buses is stuck in a low state.
Pulling RESET low resets the I
2
C state machine and
causes all the channels to be deselected, as does the
internal power-on reset function.
The pass gates of the switches are constructed such
that the VCC terminal can be used to limit the
maximum high voltage, which will be passed by the
TCA9545A. This allows the use of different bus
voltages on each pair, so that 1.8-V, 2.5-V, or 3.3-V
parts can communicate with 5-V parts, without any
additional protection. External pull-up resistors pull
the bus up to the desired voltage level for each
channel. All I/O terminals are 5.5 V tolerant.


 

(20000 products available)
Quantity

SKU: TCA9545APWR

Categories: E-Components

0.00

5 Star
0%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Submit Your Review

Please login to write review!

Upload photos
You can upload up to 6 photos, each photo maximum size is 2048 kilobytes

Related products

Your experience on this site will be improved by allowing cookies Cookie Policy