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PCA9698 Datasheet(PDF) 4 Page - NXP Semiconductors

Part No. PCA9698
Description  40-bit Fm I2C-bus advanced I/O port with RESET, OE and INT
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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PCA9698 Datasheet(HTML) 4 Page - NXP Semiconductors

 
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PCA9698_2
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 02 — 19 July 2006
4 of 47
Philips Semiconductors
PCA9698
40-bit Fm+ I2C-bus advanced I/O port with RESET, OE and INT
On power-up or RESET, all registers return to default values.
Fig 2.
Simplified schematic of the I/Os (IO0_0 to IO4_7)
VDD
IOx_y
I/O
configuration
register
DQ
CK
Q
data from
shift register
write configuration
pulse
output port
register
DQ
CK
polarity inversion
register
DQ
CK
data from
shift register
write polarity
pulse
input port
register
DQ
CK
read pulse
input port
register data
(Ix[y])
polarity inversion
register data
(Px[y])
002aab936
FF
FF
FF
FF
STOP
pulse
OCH
DQ
CK
data from
shift register
write pulse
FF
OE
OEPOL
configuration port register data (Cx[y])
output port register data (Ox[y])
INTERRUPT
MANAGEMENT
INT
Mx[y]
OUTx


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