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UM1574 Datasheet(PDF) 31 Page - STMicroelectronics

Part # UM1574
Description  Discovery kit for STM8A microcontrollers
PDF  48 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM1574 Datasheet(HTML) 31 Page - STMicroelectronics

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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



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