參數(shù)資料
型號(hào)： PCF88132
廠商： NXP Semiconductors N.V.
英文描述： (67 + 1) x 102 pixels matrix LCD driver
中文描述： （67 1）× 102像素矩陣LCD驅(qū)動(dòng)器
文件頁(yè)數(shù)： 54/72頁(yè)
文件大小： 446K
代理商： PCF88132
2004 Mar 05
54
Philips Semiconductors
Product specification
(67 + 1)
×
102 pixels matrix LCD driver
PCF8813
17.7
Programming flow
Programming is achieved in MM mode and with
application of the programming voltages. Since the data
for programming the OTP cell is contained in the
corresponding shift register cell, the shift register cell must
be loaded with a 1 in order to program the corresponding
OTP cell. If the shift register cell contains a 0, then no
action will take place when the programming voltages are
applied.
Once programmed, an OTP cell cannot be
de-programmed. Also, a previously programmed cell that
is an OTP cell containing a 1 must not be re-programmed.
During programming a substantial current flows in the
V
LCDIN
pad. For this reason programming only one OTP
cell at a time is recommended. This is achieved by filling
all but one shift register cells with 0.
The programming specification refers to the voltages at
the chip pads, therefore contact resistance must be
considered by the user.
An example of the sequence of commands and data for
OTP programming is given in Table 23. The order for
programming cells is not significant but it is recommended
that the seal bit is programmed last. Once the seal bit has
been programmed it is not possible to re-enter the
MM mode.
It is assumed that the PCF8813 has been reset just before
the programming commences.
Table 23
Example sequence for OTP programming
Note
1.
X = don’t care.
STEP
D/C
R/W
D7
D6
D5
D4
D3
D2
D1
D0
ACTION
1
1
3
reset
enable OTP by applying a reset
exit Power-down (PD = 0)
switch HVgen on/off to force refresh
of shift register
wait 5 ms for refresh to take effect
re-enter Power-down
(PD = 1 and H = 1)
enter MM mode
V
CAL
[4] (the only bit with value of 1)
V
CAL
[3]
V
CAL
[2]
V
CAL
[1]
V
CAL
[0]
MF[2]
MF[1]
MF[0]
seal bit; remain in CALMM mode
apply programming voltage at pads
V
OTPPROG
and V
LCDIN
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
0
0
1
0
PC
4
0
0
0
0
1
0
0
1
0
1
5
6
7
8
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
0
X
X
X
X
X
X
X
X
X
1
X
X
X
X
X
X
X
X
X
1
X
X
X
X
X
X
X
X
X
1
X
X
X
X
X
X
X
X
X
1
X
X
X
X
X
X
X
X
X
0
1
1
1
0
0
0
0
0
0
10
11
12
13
14
15
Repeat steps 6 to 15 for each bit that should be programmed to 1
15
apply external reset
相關(guān)PDF資料
PDF描述
PCF88132DA (67 + 1) x 102 pixels matrix LCD driver
PCF8813U (67 + 1) x 102 pixels matrix LCD driver
PCF8820 67 x 101 Grey-scale/ECB colour dot matrix LCD driver
PCF8820U 67 x 101 Grey-scale/ECB colour dot matrix LCD driver
PCF8831 STN RGB - 160 output row driver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCF88132DA 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:(67 + 1) x 102 pixels matrix LCD driver
PCF8813U 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:(67 + 1) x 102 pixels matrix LCD driver
PCF8820 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:67 x 101 Grey-scale/ECB colour dot matrix LCD driver
PCF8820U 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:67 x 101 Grey-scale/ECB colour dot matrix LCD driver
PCF8831 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:STN RGB - 160 output row driver
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