MAX7320AEE+

更新时间： 2024-01-24 16:57:32

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MAX7320AEE+ 数据手册

I C Port Expander with 12 Push-Pull Outputs

and 4 Open-Drain I/Os

Table 1. MAX7319–MAX7329 Family Comparison (continued)

I C

INPUT

INTERRUPT

MASK

OPEN-

DRAIN

OUTPUTS OUTPUTS

PUSH-

PULL

SLAVE

ADDRESS

PART

INPUTS

CONFIGURATION

4 input-only, 12 push-pull output versions:

4 input ports with programmable latching transition

detection interrupt and selectable pullups.

12 push-pull outputs with selectable default logic

levels.

MAX7326

Yes

—

Offers maximum versatility for automatic input

monitoring. An interrupt mask selects which inputs

cause an interrupt on transitions, and transition flags

identify which inputs have changed (even if only for

a transient) since the ports were last read.

4 I/O, 12 push-pull output versions:

101xxxx

and

110xxxx

4 open-drain I/O ports with latching transition

detection interrupt and selectable pullups.

12 push-pull outputs with selectable default logic

levels.

MAX7327

Up to 4

—

Up to 4

Open-drain outputs can level shift the logic-high

state to a higher or lower voltage than V+ using

external pullup resistors, but pullups draw current

when output is low. Any open-drain port can be used

as an input by setting the open-drain output to logic-

high. Transition flags identify which open-drain port

inputs have changed (even if only for a transient)

since the ports were last read.

8-PORT EXPANDERS

Input-only versions:

8 input ports with programmable latching transition

detection interrupt and selectable pullups.

MAX7319

MAX7320

MAX7321

110xxxx

101xxxx

110xxxx

—

Yes

—

Output-only versions:

8 push-pull outputs with selectable power-up default

levels.

I/O versions:

8 open-drain I/O ports with latching transition

detection interrupt and selectable pullups.

Up to 8

—

Up to 8

—

4 input-only, 4 output-only versions:

4 input ports with programmable latching transition

detection interrupt and selectable pullups.

4 push-pull outputs with selectable power-up default

levels.

MAX7322

110xxxx

Yes

—

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1...3 4 567 8 9...21

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