AN874 Datasheet, PDF (5/6 Pages) Maxim Integrated Products – Using the MAX6950 and the MAX6951 LED Display Drivers with Multiplex Dual-Digit Displays

Figure 2. External connections to modify a dual-digit display so that all segments are available
Figure 2 shows the correct wiring to the dual-digit used as Digit 0 and Digit 1, which uses external
diodes in series with the dp segments. The connections shown in Table 4 show which segments
require diodes for the other three dual-digits.
Table 4. Driver Connections to Dual-Digit Displays When All Segments Are Required
DIG0/SEG0
Pin 6
DIG1/SEG1
Pin 5
DIG2/SEG2
Pin 4
DIG3/SEG3
Pin 3
DIG4/SEG4
Pin 14
DIG5/SEG5
Pin 13
DIG6/SEG6
Pin 12
DIG7/SEG7
Pin 11
SEG8
Pin
10
LED
Digit
0
CC 0
Diode to
SEG dp of
Digit 0 and
Digit 1
SEG g
SEG f
SEG e
SEG d
SEG c
SEG b
SEG
a
LED
Digit
1
Diode to
SEG dp of
Digit 0 and
Digit 1
CC1
SEG g
SEG f
SEG e
SEG d
SEG c
SEG b
SEG
a
LED
Digit SEG dp
2
SEG g
CC2
Diode to
SEG f of
Digit 2 and
Digit 3
SEG e
SEG d
SEG c
SEG b
SEG
a
LED
Digit SEG dp
3
SEG g
Diode to
SEG f of
Digit 2 and
Digit 3
CC3
SEG e
SEG d
SEG c
SEG b
SEG
a
LED
Digit SEG dp
4
SEG g
SEG f
SEG e
CC4
Diode to
SEG d of
Digit 4 and
Digit 5
SEG c
SEG b
SEG
a
LED
Digit SEG dp
5*
SEG g
SEG f
SEG e
Diode to
SEG d of
Digit 4 and
Digit 5
CC5
SEG c
SEG b
SEG
a