ES5120
3 3/4 DIGIT A/D CONVERTER
10.5 LCD Display
The ES5120 drives a triplex (multiplexed 3:1) liquid crystal
display with three backplanes. The LCD display can include
decimal points, polarity sign, and annuciators for overrange,
peak hold, high and low logic levels, and low battery Fig. 8
shows the assignment of the display segments to the
backplanes and the segment drive lines. The back plane drive
frequency is obtained by dividing the oscillator frequency by
240.
40-pin DIP
44-pin QFP
Pin No
Pin No
BP1
Low
A4
BP2
〝―〞
BP3
E4
D4
DP3
E3
D3
1
2
3
4
5
40
41
42
43
44
1
G4
C4
B4
HIGH F3
A3
B3
G3
C3
6
7
DP2
E2
2
OVER F2
8
9
3
4
5
6
7
8
9
10
A2
B2
G2
C2
D2
DP1
E1
10
11
12
13
14
15
PEAK F1
A1
B1
G1
D1
C1 BATT
BP3
BP2
BP1
Fig. 8 LCD Backplane and Segment Assignments
CYRUSTEK [ Cyrustek corporation ]
