AN874 Maxim Integrated Products, AN874 Datasheet - Page 5

• Manufacturer Part Number: AN874
• Description: Using the MAX6950 and the MAX6951 LED Display Drivers with Multiplex Dual-Digit Displays
• Manufacturer: Maxim Integrated Products

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
LED
Digit
0
LED
Digit
1
LED
Digit
2
LED
Digit
3
LED
Digit
4
LED
Digit
5*
DIG0/SEG0
Digit 0 and
SEG dp of
Diode to
SEG dp
SEG dp
SEG dp
SEG dp
Digit 1
Pin 6
CC 0
DIG1/SEG1
Digit 0 and
SEG dp of
Diode to
SEG g
SEG g
SEG g
SEG g
Digit 1
Pin 5
CC1
DIG2/SEG2
Digit 2 and
Diode to
SEG f of
SEG g
SEG g
Digit 3
SEG f
SEG f
Pin 4
CC2
DIG3/SEG3
Digit 2 and
SEG f of
Diode to
SEG e
SEG e
Digit 3
SEG f
SEG f
Pin 3
CC3
DIG4/SEG4
Digit 4 and
SEG d of
Diode to
Pin 14
SEG e
SEG e
SEG e
SEG e
Digit 5
CC4
DIG5/SEG5
Digit 4 and
SEG d of
Diode to
Pin 13
SEG d
SEG d
SEG d
SEG d
Digit 5
CC5
DIG6/SEG6
Pin 12
SEG c
SEG c
SEG c
SEG c
SEG c
SEG c
DIG7/SEG7
Pin 11
SEG b
SEG b
SEG b
SEG b
SEG b
SEG b
SEG8
SEG
SEG
SEG
SEG
SEG
SEG
Pin
10
a
a
a
a
a
a