參數(shù)資料
型號(hào): PCF8549U
廠(chǎng)商: NXP Semiconductors N.V.
英文描述: 65 x 102 pixels matrix LCD driver
中文描述: 65 × 102像素矩陣LCD驅(qū)動(dòng)器
文件頁(yè)數(shù): 24/36頁(yè)
文件大小: 271K
代理商: PCF8549U
1997 Nov 21
24
Philips Semiconductors
Product specification
65
×
102 pixels matrix LCD driver
PCF8549
APPLICATION INFORMATION
Table 9
programming example for PCF8549
STEP
DISPLAY
OPERATION
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
I
2
C start
0
1
1
1
0
0
0
0
1
2
3
1
0
0
0
0
0
0
0
Slave address for write
Control byte with cleared C
O
bit
and D/C set to 0.
Function Set
PD = 0; V = 0; select extended
instruction set (H = 1 mode)
Set Bias System 2. This is the
recommended Bias System for a
multiplex rate 1:65
set V
OP
V
OP
is set to a +16
×
b [V].
Please note: The required
voltage is depending on the
liquid.
Function Set
PD = 0; V = 0; select normal
instruction set (H = 0 mode)
Display Control
set normal mode
(D = 1 and E = 0)
Restart: To write into the Display
RAM the D/C must be set to 1;
therefore a control byte is
needed.
Slave address for write
Control byte with cleared C
O
bit
and D/C set to 1.
Data Write
Y and X are initialized to 0 by
default, so they aren’t set here
4
0
0
1
0
0
0
0
1
5
0
0
0
1
0
0
1
0
6
1
1
1
0
1
0
1
0
7
0
0
1
0
0
0
0
0
8
0
0
0
0
1
1
0
0
9
I
2
C start
10
11
0
0
1
1
1
0
1
0
1
0
0
0
0
0
0
0
12
1
1
1
1
1
0
0
0
13
1
0
1
0
0
0
0
0
Data Write
14
1
1
1
0
0
0
0
0
Data Write
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