PCA9505 NXP [NXP Semiconductors], PCA9505 Datasheet - Page 3

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

NXP Semiconductors
5. Block diagram
PCA9505_9506_3
Product data sheet
Fig 1. Block diagram of PCA9505/06
RESET
SDA
SCL
V
V
A0
A1
A2
DD
SS
All I/Os are set to inputs at power-up and RESET.
PCA9505/PCA9506
Rev. 03 — 6 June 2007
POWER-ON
LOW PASS
FILTERS
RESET
INPUT
40-bit I
CONTROL
I
2
C-BUS
2
C-bus I/O port with RESET, OE and INT
MANAGEMENT
write pulse 0
write pulse 4
read pulse 0
read pulse 4
INTERRUPT
LP FILTER
8-bit
8-bit
PCA9505/06
OUTPUT
OUTPUT
PORTS
BANK 0
PORTS
BANK 4
INPUT/
BANK 1
BANK 2
BANK 3
INPUT/
OE
002aab492
© NXP B.V. 2007. All rights reserved.
IO0_0
IO0_1
IO0_2
IO0_3
IO0_4
IO0_5
IO0_6
IO0_7
IO4_0
IO4_1
IO4_2
IO4_3
IO4_4
IO4_5
IO4_6
IO4_7
INT
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