PCA9554 datasheet(12/30 Pages) NXP

12 / 30 page

PCA9554_9554A_7

Product data sheet

Rev. 07 — 13 November 2006

12 of 30

NXP Semiconductors

PCA9554/PCA9554A

8-bit I2C-bus and SMBus I/O port with interrupt

Application design-in information

Limiting values

Device address conﬁgured as 0100 100X for this example.

IO0, IO1, IO2 conﬁgured as outputs.

IO3, IO4, IO5 conﬁgured as inputs.

IO6 and IO7 are not used and must be conﬁgured as outputs.

Fig 16. Typical application

PCA9554

IO0

IO1

SCL

SDA

VDD

002aac496

SCL

SDA

IO2

IO3

VDD

VSS

MASTER

CONTROLLER

VSS

VDD (5 V)

2 k

Ω

SUBSYSTEM 1

(e.g., temp. sensor)

INT

SUBSYSTEM 2

(e.g., counter)

RESET

controlled switch

(e.g., CBT device)

enable

INT

10 k

Ω

10 k

Ω

SUBSYSTEM 3

(e.g., alarm system)

ALARM

IO4

IO5

VDD

IO6

IO7

10 k

Ω

10 k

Ω

Table 8.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

VDD

supply voltage

−0.5

+6.0

input current

±20

VI/O

voltage on an input/output pin

VSS − 0.5

5.5

IO(IOn)

output current on pin IOn

±50

IDD

supply current

ISS

ground supply current

100

Ptot

total power dissipation

200

Tstg

storage temperature

−65

+150

°C

Tamb

ambient temperature

operating

−40

+85

°C

PCA9554 bảng dữ liệu(PDF) 12 Page - NXP Semiconductors

PCA9554 bảng dữ liệu(HTML) 12 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

bảng dữ liệu tải về

Link URL