MAX7310 Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

MAX7310

2-Wire-Interfaced 8-Bit I/O Port Expander with Reset

Maxim Integrated 

2-Wire-Interfaced 8-Bit I/O Port Expander

with Reset

PIN

TSSOP/

QSOP

THIN

QFN

1

15

2

16

3

1

4

2

5

3

6

4

7

5

8

6

9–14

7–12

15

13

16

14

—

PAD

Pin Description

NAME

FUNCTION

SCL

SDA

AD0

AD1

AD2

I/O0

I/O1

GND

I/O2–I/O7

RESET

V+

Exposed

pad

Serial Clock Line

Serial Data Line

Address Input 0

Address Input 1

Address Input 2

Input/Output Port 0 (Open Drain)

Input/Output Port 1

Supply Ground

Input/Output Port 2—Input/Output Port 7

External Reset (Active Low). Pull RESET low to configure I/O pins as inputs. Set RESET

high for normal operation.

Supply Voltage. Bypass with a 0.047µF capacitor to GND.

Exposed Pad on Package Underside. Connect to GND.

AD0

AD1

MAX7310

AD2

I/O0

SCL

SDA

INPUT

FILTER

INPUT/

SMBus

CONTROL

8 BIT

OUTPUT

PORTS

I/O1

I/O2

I/O3

I/O4

I/O5

WRITE PULSE

I/O6

N

READ PULSE

I/O7

V+

RESET

POWER-ON

RESET

GND

Figure 1. MAX7310 Block Diagram

Detailed Description

The MAX7310 general-purpose input/output (GPIO)

peripheral provides up to eight I/O ports, controlled

through an I2C-compatible serial interface. The

MAX7310 consists of an input port register, an output

port register, a polarity inversion register, a configura-

tion register, and a bus timeout register. An active-low

reset input sets the eight I/O lines as inputs. Three

slave ID address select pins (AD0, AD1, and AD2)

choose one of 56 slave ID addresses (Figure 1).

_______________________________________________________________________________________________________ 5

Share Link: