參數(shù)資料
型號(hào)： OM62112
廠商： NXP Semiconductors N.V.
英文描述： 48 X 84 dot matrix LCD driver
中文描述： 48 × 84點(diǎn)陣LCD驅(qū)動(dòng)器
文件頁(yè)數(shù)： 28/48頁(yè)
文件大?。?/td> 243K
代理商： OM62112
2002 Jan 17
28
Philips Semiconductors
Product specification
48
×
84 dot matrix LCD driver
OM6211
18 MODULE MAKER PROGRAMMING
The One Time Programmable (OTP) technology has been
implemented on the OM6211. It enables the module
maker to program some extended features of the OM6211
after it has been assembled on an LCD module.
Programming is made under the control of the serial
interface and the use of one special pin. This pin must be
made available on the module glass but needs not to be
accessed by the set maker.
As the module maker programming is an extension of the
normal functions of the OM6211 it will not be effective until
specifically instructed with the ‘Enable OTP’ command.
The OM6211 features 3 module maker programmable
parameters:
V
LCD
calibration
V
PR
default value
Seal bit.
18.1
V
LCD
calibration
The first feature included is the ability to tune the V
LCD
voltage with a 5-bit code. This code is implemented in
two’s complement notation giving rise to a positive or
negative offset to the V
PR
register.
This is in the same manner as the on-glass calibration pins
V
OS
(laser trim pins). In theory, both may be used together
but it is recommended that the laser trim pins are tied to
V
SS
when OTP calibration is being used. This will set them
to a default offset of zero. If both are used then the addition
of the two 5-bit numbers must not exceed a 5-bit result
otherwise the resultant value will be undefined. The final
adder in the circuit has underflow and overflow protection.
In the event of an overflow, the output will be clamped
to 255; and during an underflow the output will be clamped
to 0.
The final control to the high voltage generator, V
OP
, will be
the sum of all the calibration registers and pins. The V
OP
equation (1) given in Section 9.12 must be extended to
include the OTP calibration.
V
OP
V
PR
V
OS
MMVOPCAL
+
+
=
(5)
The additional offset applied to V
LCD
can be calculated
from equation (2) and (5), where b is the step size as
defined in Table 4.
V
LCD
OFFSET
V
OS
MMVOPCAL
+
(
=
(6)
The possible MMVOPCAL
4
to MMVOPCAL
0
values are
the same as the V
OS
[4:0] values, see Table 9.
)
b
×
handbook, full pagewidth
MGU287
OTP VLCD calibration: 5-bit offset
MMVOPCAL[4:0]
VOP[7:0]
range: 0 to
+
255
range
16 to
+
15
range
16 to
+
15
range 0 to
+
255
usable range
+
32 to
+
255
to high voltage
generator
laser trim pins: 5-bit offset
VOS[4:0]
VPR register: 8-bit value
VPR[7:0]
+
+
Fig.20 V
LCD
calibration.
相關(guān)PDF資料
PDF描述
OM6211F1 48 X 84 dot matrix LCD driver
OM6211U 48 X 84 dot matrix LCD driver
OM6213 48 x 84 pixels matrix LCD driver
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
OM6211F1 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:48 X 84 dot matrix LCD driver
OM6211U 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:48 X 84 dot matrix LCD driver
OM6213 制造商:未知廠家 制造商全稱:未知廠家 功能描述:48 x 84 pixels matrix LCD driver
OM6214SS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TWO POWER MOSFETS IN HERMETIC ISOLATED SIP PACKAGE
OM6215SS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TWO POWER MOSFETS IN HERMETIC ISOLATED SIP PACKAGE
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