MAX7370 Maxim, MAX7370 Datasheet - Page 6

• Manufacturer Part Number: MAX7370
• Description: The MAX7370 I²C-interfaced peripheral provides microprocessors with management of up to 64 key switches, with optional GPIO and PWM-controlled LED drivers
• Manufacturer: Maxim

with I
TQFN
8, 23
10
11
12
1
2
3
4
5
6
7
9
8 x 8 Key-Switch Controller and LED Driver/GPIOs
*CONNECT EP TO GROUND.
TOP VIEW
PIN
B1, B5,
WLP
A2
B2
A3
B3
A4
A5
B4
C3
C5
C4
D5
E5
2
ROW0
ROW1
ROW2
ROW3
ROW4
GND
C Interface and High Level of ESD Protection
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19
20
21
22
23
24
NAME
ROW5
ROW6
ROW7
+
COL7
COL6
COL5
COL4
COL3
COL2
COL1
COL0
GND
18
1
17
2
MAX7370
TQFN
16
Row 5 Input from Key Matrix or GPIO Port
Row 6 Input from Key Matrix or GPIO Port
Row 7 Input from Key Matrix or GPIO Port
Column 7 Output from Key Matrix or Open-Drain GPIO Port. COL7 can be configured as a
constant-current sink.
Column 6 Output from Key Matrix or Open-Drain GPIO Port. COL6 can be configured as a
constant-current sink.
Column 5 Output from Key Matrix or Open-Drain GPIO Port. COL5 can be configured as a
constant-current sink.
Column 4 Output from Key Matrix or Open-Drain GPIO Port. COL4 can be configured as a
constant-current sink.
Ground
Column 3 Output from Key Matrix or GPIO Port
Column 2 Output from Key Matrix or GPIO Port
Column 1 Output from Key Matrix or GPIO Port
Column 0 Output from Key Matrix or GPIO Port
3
15
4
14
5
EP*
13
6
12
11
10
9
8
7
COL0
COL1
COL2
COL3
GND
COL4
(BUMP SIDE DOWN)
TOP VIEW
A
B
C
D
E
FUNCTION
+
ROW4
ROW3
ROW1
ROW0
GND
1
ROW5
ROW6
ROW2
V
INT
2
CC
MAX7370
Pin Configurations
WLP
ROW7
COL7
GND
SDA
SCL
3
Pin Description
MAX7370
COL6
COL4
COL2
AD0
V
4
LA
COL5
COL3
COL1
COL0
GND
5