PCA9665D NXP [NXP Semiconductors], PCA9665D Datasheet - Page 69
PCA9665D
Manufacturer Part Number
PCA9665D
Description
Fm+ parallel bus to I2C-bus controller
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCA9665D.pdf
(90 pages)
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10.3 Add additional I
10.4 Convert 8 bits of parallel data into I
The PCA9665 can be used to convert 8-bit parallel data into additional multiple master
capable I
microprocessor, custom ASIC, DSP, etc., already have an I
more additional I
components that cannot be located on the same bus (e.g., 100 kHz and 400 kHz slaves
on different buses so that each bus can operate at its maximum potential).
Functioning as a slave transmitter, the PCA9665 can convert 8-bit parallel data into a
two-wire I
8 traces across the entire width of the printed-circuit board.
Fig 34. Adding I
Fig 35. Adding additional I
Fig 36. Converting parallel to serial data application
2
2
C-bus port as shown in
C-bus data stream as is shown in
MICROCONTROLLER,
MICROPROCESSOR,
2
2
C-bus ports to interface with more I
MICROCONTROLLER,
MICROCONTROLLER,
C-bus port application
MICROPROCESSOR,
MICROPROCESSOR,
2
OR ASIC
C-bus ports
Rev. 03 — 12 August 2008
OR ASIC
OR ASIC
2
C-bus ports application
Figure
control signals
8 bits data
control signals
control signals
8 bits data
8 bits data
35. It is used if the microcontroller,
SDA
SCL
Figure
2
C-bus serial data stream
PCA9665
Fm+ parallel bus to I
36. This would prevent having to run
PCA9665
PCA9665
2
C-bus or SMBus components or
002aab036
002aab037
2
C-bus port but need one or
SDA
SCL
MASTER
002aab039
SDA
SCL
SDA
SCL
PCA9665
© NXP B.V. 2008. All rights reserved.
2
C-bus controller
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