MAX7320 Maxim, MAX7320 Datasheet - Page 6

• Manufacturer Part Number: MAX7320
• Description: The MAX7320 2-wire serial-interfaced peripheral features eight push-pull outputs with selectable power-up logic states
• Manufacturer: Maxim

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Table 1. MAX7319–MAX7329 Family Comparison (continued)
Table 2. Read and Write Access to Eight-Port Expander Family
6
MAX7319
MAX7320
MAX7321
MAX7322
MAX7323
MAX7328
MAX7329
16-PORT EXPANDERS
MAX7323
MAX7328
MAX7329
MAX7324
MAX7325
MAX7326
MAX7327
2
PART
PART
_______________________________________________________________________________________
C Port Expander with Eight Push-Pull Outputs
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ADDRESS
2
ADDRESS
110xxxx
101xxxx
110xxxx
110xxxx
110xxxx
0100xxx
0111xxx
C SLAVE
110xxxx
0100xxx
0111xxx
101xxxx
110xxxx
SLAVE
and
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2
C
INPUTS
Up to 4
Up to 8
Up to 8
Up to 4
INPUTS
Up to 8
Up to 4
Up to 8
Up to 8
8
4
—
8
4
INTERRUPT
INTERRUPT
INPUT
MASK
Yes
Yes
MASK
—
—
—
—
Yes
Yes
—
—
—
—
—
OUTPUTS
Up to 4
Up to 8
Up to 8
Up to 4
OPEN-
DRAIN
OUTPUTS
—
—
Up to 8
Up to 4
Up to 8
Up to 8
OPEN-
DRAIN
—
—
—
OUTPUTS
PUSH-
PULL
OUTPUTS
—
12
12
PUSH-
4
8
8
PULL
—
—
—
—
8
4
4
Four I/O, four output-only versions:
Four open-drain I/O ports with latching transition
detection interrupt and selectable pullups.
Four push-pull outputs with selectable power-up
default levels.
PCF8574-, PCF8574A-compatible versions:
Eight open-drain I/O ports with nonlatching transition
detection interrupt and pullups on all ports.
All ports power up as inputs (or logic-high outputs).
Any port can be used as an input by setting the
open-drain output to logic-high.
Software equivalent to a MAX7320 plus a MAX7321.
Software equivalent to a MAX7320 plus a MAX7319.
Software equivalent to a MAX7320 plus a MAX7322.
Software equivalent to a MAX7320 plus a MAX7323.
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<O7, O6 outputs,
2
<I7–I0 interrupt
<port outputs>
C DATA WRITE
I5–I2 interrupt
mask, O1, O0
<O7–O0 port
<P7–P0 port
<P7–P0 port
<P7–P0 port
outputs>
outputs>
outputs>
outputs>
outputs>
mask>
APPLICATION
<O7, O6, P5–P2, O1, O0 port
<0, 0, P5-P2 transition flags,
<O7, O6, I5–I2, O1, O0 port
<0, 0, I5–I2 transition flags,
<P7–P0 transition flags>
<I7–I0 transition flags>
<O7-O0 port inputs>
<P7–P0 port inputs>
<P7–P0 port inputs>
<P7–P0 port inputs>
<I7–I0 port inputs>
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2
C DATA READ
inputs>
inputs>
0, 0>
0, 0>