pca9502 NXP Semiconductors, pca9502 Datasheet - Page 18
pca9502
Manufacturer Part Number
pca9502
Description
8-bit I/o Expander With I2c-bus/spi Interface
Manufacturer
NXP Semiconductors
Datasheet
1.PCA9502.pdf
(25 pages)
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PCA9502
NXP Semiconductors
2
8-bit I/O expander with I
C-bus/SPI interface
CS
SCLK
A3
A2
A1
A0
0
0
X
SI
R/W
D7
D6
D5
D4
D3
D2
D1
D0
SO
t
d13
IRQ
002aab879
R/W = 1; A[3:0] = IOState (0x0B)
Fig 18. Read IOState to clear GPIO INT
PCA9502_3
© NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 03 — 13 October 2006
18 of 25
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