UM1574
Hardware and layout
Doc ID 023645 Rev 1
31/48
4.3.5
STM8AL board LCD (16 segments, 4 commons)
This LCD allows the STM8AL3L68T to display any information on four 14-segment digits
and 4 BARs, using all COMs. (See the LCD segment mapping in
Figure 18
and pin
connections in
Table 7
). The two first left digits of the LCD display are not used in this
application.
Characteristics overview:
●
16 segments and 4 commons
●
Drive method: multiplexed 1/4 duty, 1/3 bias
●
Operating voltage: 3 V
●
Operating temperature: 0 to 50°C
●
Connector: 28-pin DIL 2.54 mm pitch
Note:
When the LCD is plugged in, all I/O ports listed in
Table 7
are unavailable. To use one of
these as I/O, you must remove the LCD
Figure 18.
LCD segment mapping