NT3883
Dot Matrix LCD 80-Channel Driver
Features
T
T
T
Provides 80-channel LCD driver
Internal serial to parallel conversion circuits:
40-bit bi-direction shift register
2
80-bit latch
1
80-bit 4-level driver
1
Logic circuit supply voltage range: 4.5V - 5.5V
T
T
T
T
T
LCD driving voltage range (V
DD
- V
EE
): 3.5V to 11V
Applicable LCD duty cycle: 1/2 to 1/16
Interfaces with a NT3881B/C/D LCD controller
LCD bias voltage can be supplied externally
Available in 100-pin QFP and in CHIP FORM
General Description
The NT3883 is a dot matrix LCD 80-channel driver
fabricated by low power CMOS technology. This IC
consists of two 40-bit bi-directional shift registers, 80-bit
latch and 80-bit 4-level LCD driver. The NT3883 converts
serial data that are received from the LCD controller, such
as NT3881B/C/D, to parallel data and outputs LCD driving
waveforms to drive LCD. Expansion of character-type
liquid crystal display can be easily obtained according to
the number and structure of characters.
Pin Configuration
S S S S S S S S S S S S S S S S S S S S
3 3 3 3 3 3 3 3 3 4 8 7 7 7 7 7 7 7 7 7
1 2 3 4 5 6 7 8 9 0 0 9 8 7 6 5 4 3 2 1
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
S70
S69
S68
S67
S66
S65
S64
S63
S62
S61
S60
S59
S58
S57
S56
S55
S54
S53
S52
S51
S50
S49
S48
S47
S46
S45
S44
S43
S42
S41
NT3883F
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
N V V V V G C S S N N N C D D D D M N N
C
E D 3 2
N L L L C C C L L R L R
C C
2 1 1 2 2
D 1 1 2
E D
1
V2.1 November, 1999