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PCA9505 Datasheet(PDF) 18 Page - NXP Semiconductors

Part # PCA9505
Description  40-bit I2C-bus I/O port with RESET, OE and INT
PDF  31 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA9505 Datasheet(HTML) 18 Page - NXP Semiconductors

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PCA9505_9506_3
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 03 — 6 June 2007
18 of 31
NXP Semiconductors
PCA9505/06
40-bit I2C-bus I/O port with RESET, OE and INT
9.
Application design-in information
Device address configured as 0100 000X for this example.
IO0_0, IO0_2, IO0_3, IO1_0 to IO3_7 are configured as outputs.
IO0_1, IO0_4, IO4_0 to IO4_7 configured as inputs.
Fig 15. Typical application
PCA9505/06
IO0_0
IO0_1
SCL
SDA
VDD
MASTER
CONTROLLER
SCL
SDA
1.6 k
Ω
INT
1.6 k
Ω
IO0_2
VDD
A2
A1
A0
5 V
VDD
RESET
OE
GND
1.1 k
Ω
(optional)
OE
INT
RESET
2 k
Ω
1.1 k
Ω
(optional)
SUB-SYSTEM 1
(e.g., temp sensor)
IO0_3
INT
SUB-SYSTEM 2
(e.g., counter)
RESET
controlled
switch
(e.g., CBT device)
VDD
A
B
ENABLE
SUB-SYSTEM 3
(e.g., alarm system)
ALARM
IO0_4
IO0_5
IO1_0
IO3_7
IO4_0
IO4_7
24 LED MATRIX
ALPHA NUMERIC
KEYPAD
VSS
002aab500



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