STV0681
STV0681 pin description
Table 15: STV0681 pin listing
Type Description
Pin no.
Signal
drive
LCD Interface
83
93
94
95
96
97
98
99
86
87
88
89
90
91
92
LCDCOM
LCD1_6
LCD1_5
LCD1_4
LCD1_3
LCD1_2
LCD1_1
LCD1_0
LCD2_6
LCD2_5
LCD2_4
LCD2_3
LCD2_2
LCD2_1
LCD2_0
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
LCD Common
4mA
(SL)
LCD digit 1 segment G
LCD digit 1 segment F
LCD digit 1 segment E
LCD digit 1 segment D
LCD digit 1 segment C
LCD digit 1 segment B
LCD digit 1 segment A
LCD digit 2 segment G
LCD digit 2 segment F
LCD digit 2segment E
LCD digit 2segment D
LCD digit 2segment C
LCD digit 2 segment B
LCD digit 2 segment A
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
2mA
(SL)
Piezo Interface
82 PIEZO
Output
Direct connection to piezo buzzer
8mA
(SL)
Battery Level Comparator Interface
78
LO_BAT
Input (A)
Battery level comparator input. The voltage on
low_bat is compared to the reference to determine
the battery status
77
LO_BAT_REF
Input (A)
1.22V battery level comparator reference input
ADCS 7283313C
39/44
STMICROELECTRONICS [ ST ]
