Rainbow Electronics MAX6959 - Manual (Page 18)

MAX6958/MAX6959
2-Wire Interfaced, 3V to 5.5V, 4-Digit,
9-Segment LED Display Drivers with Keyscan
18 ______________________________________________________________________________________
V+
DIG0–DIG3
SEG0–SEG9
SDA
SCL
INPUT1
µC
SDA
SCL
9
INPUT2
GND
9 9 9 9
5V
Key 0
DIG0/SEG0
Key 1
DIG1/SEG1
Key 2
DIG2/SEG2
Key 3
DIG3/SEG3
Key 4
DIG0/SEG0
Key 5
DIG1/SEG1
Key 6
DIG2/SEG2
Key 7
DIG3/SEG3
MAX6959
0.1 µF
39k Ω 39k Ω
Typical Application Circuit
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
SDA V+
SEG8
SEG7
SEG6
SEG5
SEG4
(INPUT2)/N.C.
(INPUT1)/N.C.
TOP VIEW
MAX6958/
MAX6959
QSOP/DIP
SCL
(IRQ/SEG9) SEG9
DIG2/SEG2
DIG0/SEG0
DIG1/SEG1
DIG3/SEG3
GND
( ) MAX6959 ONLY
Pin Configuration