MAX7370 datasheet(26/37 Pages) MAXIM

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�� Maxim Integrated Products 26

MAX7370

8 x 8 Key-Switch Controller and LED Driver/GPIOs

with I2C Interface and High Level of ESD Protection

Table 17. GPO Output Mode 1 Register (0x36)

Table 18. GPO Output Mode 2 Register (0x37)

Note: When programmed as GPO, COL7–COL4 are always open drain and bits D[7:4] are not writable.

DESCRIPTION

VALUE

FUNCTION

DEFAULT VALUE

ROW7

Port is an open-drain output

Port is a push-pull output

ROW6

Port is an open-drain output

Port is a push-pull output

ROW5

Port is an open-drain output

Port is a push-pull output

ROW4

Port is an open-drain output

Port is a push-pull output

ROW3

Port is an open-drain output

Port is a push-pull output

ROW2

Port is an open-drain output

Port is a push-pull output

ROW1

Port is an open-drain output

Port is a push-pull output

ROW0

Port is an open-drain output

Port is a push-pull output

DESCRIPTION

VALUE

FUNCTION

DEFAULT VALUE

COL7

Port is an open-drain output

COL6

Port is an open-drain output

COL5

Port is an open-drain output

COL4

Port is an open-drain output

COL3

Port is an open-drain output

Port is a push-pull output

COL2

Port is an open-drain output

Port is a push-pull output

COL1

Port is an open-drain output

Port is a push-pull output

COL0

Port is an open-drain output

Port is a push-pull output

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