Datasheet

MAX7370
8 x 8 Key-Switch Controller and LED Driver/GPIOs
with I2C Interface and High Level of ESD Protection
6Maxim Integrated
Pin/Bump Description
Pin/Bump Configurations
PIN BUMP
NAME FUNCTION
TQFN WLP
1 A2 ROW5 Row 5 Input from Key Matrix or GPIO Port
2 B2 ROW6 Row 6 Input from Key Matrix or GPIO Port
3 A3 ROW7 Row 7 Input from Key Matrix or GPIO Port
4 B3 COL7
Column 7 Output from Key Matrix or Open-Drain GPIO Port. COL7 can be configured as a
constant-current sink.
5 A4 COL6
Column 6 Output from Key Matrix or Open-Drain GPIO Port. COL6 can be configured as a
constant-current sink.
6 A5 COL5
Column 5 Output from Key Matrix or Open-Drain GPIO Port. COL5 can be configured as a
constant-current sink.
7 B4 COL4
Column 4 Output from Key Matrix or Open-Drain GPIO Port. COL4 can be configured as a
constant-current sink.
8, 23
B1, B5,
C3
GND Ground
9 C5 COL3 Column 3 Output from Key Matrix or GPIO Port
10 C4 COL2 Column 2 Output from Key Matrix or GPIO Port
11 D5 COL1 Column 1 Output from Key Matrix or GPIO Port
12 E5 COL0 Column 0 Output from Key Matrix or GPIO Port
MAX7370
TOP VIEW
(BUMP SIDE DOWN)
A
B
C
D
WLP
E
1234
ROW4
ROW5 ROW7 COL6 COL5
GND
ROW6 COL7 COL4 GND
ROW3
ROW2 GND COL2 COL3
ROW1
V
CC
SDA V
LA
COL1
ROW0
SCL AD0 COL0
5
+
INT
TQFN
MAX7370
19
20
21
22
1
+
23456
18 17 16 15 14 13
23
24
12
11
10
9
8
7
ROW0
ROW2
ROW1
ROW3
ROW4
ROW5 ROW6 ROW7
COL7 COL6 COL5
V
CC
INT
SDA
AD0 V
LA
GND
COL0
*CONNECT EP TO GROUND.
COL2
COL1
COL3
COL4
GND
SCL
TOP VIEW
EP*