pca9506 NXP Semiconductors, pca9506 Datasheet - Page 4

• Manufacturer Part Number: pca9506
• Description: 40-bit I2c-bus I/o Port With Reset, Oe, And Int
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 14939
Product data sheet
Fig 2. Simplified schematic of IO0_0 to IO4_7
write configuration
write polarity
On power-up or RESET, all registers return to default values.
shift register
shift register
shift register
write pulse
read pulse
data from
data from
data from
pulse
pulse
Rev. 01 — 14 February 2006
I/O configuration
register
output port
register
D
CK
D
CK
Q
Q
Q
40-bit I
input port
register
polarity inversion
register
D
CK
D
CK
2
C-bus I/O port with RESET, OE, and INT
Q
Q
configuration port register data (Cx[y])
output port register data (Ox[y])
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Mx[y]
MANAGEMENT
INTERRUPT
PCA9506
ESD protection
diode
V
V
INT
input port
register data
(Ix[y])
polarity
register data
(Px[y])
DD
SS
002aab493
IOx_y
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