PCA9554A datasheet(3/33 Pages) TI

부품명	PCA9554A

상세설명	REMOTE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

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제조업체	TI [Texas Instruments]

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14

I/O

Port

Shift

Register

8 Bits

LP Filter

Interrupt

Logic

Input

Filter

15

Power-On

Reset

Read Pulse

Write Pulse

2

1

13

16

8

GND

VCC

SDA

SCL

A1

A0

INT

I2C Bus

Control

P7−P0

3

A2

PCA9554A

REMOTE 8-BIT I2C AND SMBus I/O EXPANDER

WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

SCPS127A – SEPTEMBER 2006 – REVISED FEBRUARY 2007

TERMINAL FUNCTIONS

NO.

QSOP (DBQ)

SOIC (DW),

NAME

DESCRIPTION

QFN (RGT) AND

SSOP (DB),

QFN (RGV)

TSSOP (PW), AND

TVSOP (DGV)

1

15

A0

Address input. Connect directly to VCC or ground.

2

16

A1

Address input. Connect directly to VCC or ground.

3

1

A2

Address input. Connect directly to VCC or ground.

4

2

P0

P-port input/output. Push-pull design structure.

5

3

P1

P-port input/output. Push-pull design structure.

6

4

P2

P-port input/output. Push-pull design structure.

7

5

P3

P-port input/output. Push-pull design structure.

8

6

GND

Ground

9

7

P4

P-port input/output. Push-pull design structure.

10

8

P5

P-port input/output. Push-pull design structure.

11

9

P6

P-port input/output. Push-pull design structure.

12

10

P7

P-port input/output. Push-pull design structure.

13

11

INT

Interrupt output. Connect to VCC through a pullup resistor.

14

12

SCL

Serial clock bus. Connect to VCC through a pullup resistor.

15

13

SDA

Serial data bus. Connect to VCC through a pullup resistor.

16

14

VCC

Supply voltage

FUNCTIONAL BLOCK DIAGRAM

A.

Pin numbers shown are for the DB, DBQ, DGV, DW, N, or PW package.

B.

All I/Os are set to inputs at reset.

3

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유사한 부품 번호 - PCA9554A

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NXP Semiconductors	PCA9554A	183Kb / 20P	8-bit I2C and SMBus I/O port with interrupt 2004 Sep 30
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