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MAX7325 Datasheet(PDF) 6 Page - Maxim Integrated Products

Part No. MAX7325
Description  I2C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX7325 Datasheet(HTML) 6 Page - Maxim Integrated Products

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I2C Port Expander with 8 Push-Pull
and 8 Open-Drain I/Os
6
_______________________________________________________________________________________
PART
I2C
SLAVE
ADDRESS
INPUTS
INPUT
INTERRUPT
MASK
OPEN-
DRAIN
OUTPUTS
PUSH-
PULL
OUTPUTS
CONFIGURATION
MAX7326
4
Yes
12
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.
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.
MAX7327
101xxxx
and
110xxxx
Up to 4
Up to 4
12
4 I/O, 12 push-pull output versions:
4 open-drain I/O ports with latching transition
detection interrupt and selectable pullups.
12 push-pull outputs with selectable default logic
levels.
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
MAX7319
110xxxx
8
Yes
Input-only versions:
8 input ports with programmable latching transition
detection interrupt and selectable pullups.
MAX7320
101xxxx
——
8
Output-only versions:
8 push-pull outputs with selectable power-up default
levels.
MAX7321
110xxxx
Up to 8
Up to 8
I/O versions:
8 open-drain I/O ports with latching transition
detection interrupt and selectable pullups.
MAX7322
110xxxx
4
Yes
4
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.
Table 1. MAX7319–MAX7329 Family Comparison (continued)


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