PCA9505 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

PCA9505

40-bit I2C-bus I/O port with RESET, OE and INT

NXP Semiconductors. 

NXP Semiconductors

5. Block diagram

PCA9505/06

40-bit I2C-bus I/O port with RESET, OE and INT

PCA9505/PCA9506

A0

A1

A2

SCL

SDA

LOW PASS

INPUT

FILTERS

VDD

VSS

RESET

POWER-ON

RESET

OE

8-bit

write pulse 0

read pulse 0

INPUT/

OUTPUT

PORTS

BANK 0

I2C-BUS

CONTROL

BANK 1

BANK 2

BANK 3

8-bit

write pulse 4

read pulse 4

INPUT/

OUTPUT

PORTS

BANK 4

INTERRUPT

MANAGEMENT

LP FILTER

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

All I/Os are set to inputs at power-up and RESET.

Fig 1. Block diagram of PCA9505/06

002aab492

PCA9505_9506_3

Product data sheet

Rev. 03 — 6 June 2007

© NXP B.V. 2007. All rights reserved.

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