MAX7319 Ver la hoja de datos (PDF) - Maxim Integrated

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MAX7319

I2C Port Expander with Eight Inputs and Maskable Transition Detection

Maxim Integrated 

MAX7319

I2C Port Expander with Eight Inputs

and Maskable Transition Detection

Power-Supply Considerations

The MAX7319 operates with a +1.71V to +5.5V supply

voltage over the -40°C to +125°C temperature range.

Bypass V+ to GND with a ceramic capacitor of at least

0.047µF as close to the device as possible. For the TQFN

version, connect the exposed pad to GND.

Compatibility with MAX6965, MAX7315,

and MAX7316

The MAX7319 is subset pin compatible with the

MAX6965, MAX7315, and MAX7316. The pin

differences are shown in Table 4. The MAX7319 is

not software compatible with MAX6965, MAX7315, or

MAX7316. In many cases, it is possible to design a PC

board to work with all these port expanders, providing

design flexibility.

Table 4. MAX7319, MAX6965, MAX7315,

and MAX7316 Pin Compatibility

PIN-PACKAGE

16

16

QSOP TQFN

1

15

2

16

3

1

PIN FUNCTION

MAX7319

MAX7315

MAX6965 AND

MAX7316

AD0

AD0

BLINK

RST

AD1

RST

AD2

AD2

AD0

Pin Configurations

TOP VIEW

12 11 10 9

SDA 13

8 I5

V+ 14

AD0 15

MAX7319

RST 16 + * EP

7 I4

6 GND

5 I3

1234

TQFN

3mm x 3mm

* EXPOSED PAD CONNECTED TO GND.

AD0 1

RST 2

AD2 3

I0 4

I1 5

I2 6

I3 7

GND 8

+

MAX7319

QSOP

16 V+

15 SDA

14 SCL

13 INT

12 I7

11 I6

10 I5

9 I4

Typical Application Circuit

3.3V

µC

SCL

SDA

RST

INT

V+

SCL MAX7319

I7

SDA

I6

RST

I5

INT

I4

I3

AD0

I2

AD2

I1

I0

GND

47nF

INPUT 7

INPUT 6

INPUT 5

INPUT 4

INPUT 3

INPUT 2

INPUT 1

INPUT 0

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