PCA9505 NXP [NXP Semiconductors], PCA9505 Datasheet - Page 18

• Manufacturer Part Number: PCA9505
• Description: 40-bit I2C-bus I/O port with RESET, OE and INT
• Manufacturer: NXP [NXP Semiconductors]

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