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參數(shù)資料
| 型號： | P83C834 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontrollers with LCD-driver |
| 中文描述： | 8位微控制器與LCD驅動器 |
| 文件頁數(shù)： | 19/36頁 |
| 文件大?。?/td> | 165K |
| 代理商： | P83C834 |
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1997 Jul 03
19
Philips Semiconductors
Product specification
8-bit microcontrollers with LCD-driver
P83C434; P83C834
Table 20
Mode selection Segments/Backplanes
Table 21
Selection of display configurations
Table 22
LCD drive modes and characteristics
Note
1.
Multiplex drive ratios of 1 : 3 and 1 : 4 with
1
2
bias are possible, but the discrimination contrast ratios are reduced;
for 1 : 3, D = 1.732 and for 1 : 4, D = 1.528. However, there is an advantage that leads to reduction of V
op
as follows:
a) for 1 : 3 multiplex (
1
2
bias), V
op
= 2.449
×
V
off(rms)
.
b) For 1 : 4 multiplex (
1
2
bias), V
op
= 2.309
×
V
off(rms)
.
This compared to V
op
= 3
×
V
off(rms)
when
1
3
bias is used.
MULTIPLEX RATIO
SEGMENTS
BACKPLANES
1 : 1 (static)
1 : 2
1 : 3
1 : 4
S00 to S21, S22/BP3, S23/BP2
S00 to S21, S22/BP3, S23/BP2
S00 to S21, S22/BP3
S00 to S21
BP0
BP0, BP1
BP0, BP1, S23BP2
BP0, BP1, S23/BP2, S22/BP3
NUMBER OF
7-SEGMENTS NUMERIC
14-SEGMENTS
ALPHANUMERIC
DOT MATRIX
BACKPLANES SEGMENTS
DIGITS
INDICATOR
SYMBOLS
CHARACTERS
INDICATOR
SYMBOLS
4
3
2
1
88
69
48
24
12
9
6
3
4
6
6
3
6
4
3
1
4
88 dots (4
×
22)
69 dots (3
×
23)
48 dots (2
×
24)
24 dots (1
×
24)
13
6
10
LCD DRIVE MODE
NUMBER OF
LCD BIAS
CONFIGURATION
BACKPLANES
LEVELS
static
1 : 2
1 : 2
1 : 3
(1)
1 : 4
(1)
1
2
2
3
4
2
3
4
4
4
static
1
2
1
3
1
3
1
3
0
1
∞
0.354
0.333
0.333
0.333
0.791
0.745
0.638
0.577
2.236
2.236
1.915
1.7321
V
V
op
--------------------
V
V
op
--------------------
D
V
off(rms)
V
=
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