PCA9506 查看數據表（PDF） - Philips Electronics

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PCA9506

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

Philips Electronics 

Philips Semiconductors

PCA9506

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

data from

shift register

write configuration

pulse

I/O configuration

register

DQ

CK Q

data from

shift register

DQ

write pulse

CK

output port

register

read pulse

configuration port register data (Cx[y])

output port register data (Ox[y])

VDD

input port

register

D

Q

CK

IOx_y

ESD protection

diode

VSS

Mx[y]

INTERRUPT

MANAGEMENT INT

input port

register data

(Ix[y])

data from

shift register

polarity inversion

register

D

Q

write polarity

pulse

CK

On power-up or RESET, all registers return to default values.

Fig 2. Simplified schematic of IO0_0 to IO4_7

polarity

register data

(Px[y])

002aab493

9397 750 14939

Product data sheet

Rev. 01 — 14 February 2006

© Koninklijke Philips Electronics N.V. 2006. All rights reserved.

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