參數(shù)資料
型號： OM6211
廠商： NXP Semiconductors N.V.
英文描述： 48 X 84 dot matrix LCD driver
中文描述： 48 × 84點陣LCD驅(qū)動器
文件頁數(shù)： 8/48頁
文件大?。?/td> 243K
代理商： OM6211
2002 Jan 17
8
Philips Semiconductors
Product specification
48
×
84 dot matrix LCD driver
OM6211
9.1
Reset
TheOM6211hasnointernalPower-onreset,onlyexternal
reset and reset by command. After power-on an external
reset is required. A reset initiated either from the RES pin
or by command will initialize the chip to the following
starting conditions:
Power-down mode (DON = 0 and DAL = 1):
– Internal oscillator stopped
– The V
LCD
generator (HV generator) is switched off
(HVE = 0) and V
LCDOUT
is 3-state
– Display is off and all LCD outputs are internally
connected to V
SS
(DON = 0)
– Display all points is on (DAL = 1).
Serial interface initialized; write mode
Display normal video (E = 0)
Address counter X
6
to X
0
= 0; Y
2
to Y
0
= 0; display start
line Z
5
to Z
0
= 0; no Y mirroring (MY = 0)
Bias system
1
7
(BS
2
to BS
0
= 100)
V
LCD
selection V
PR7
to V
PR0
= 0
Voltage multiplication factor 4 (S
1
and S
0
= 10)
Temperature control mode TC3 (TC
1
and TC
0
= 11)
Frequency not calibrated and OC = 0
RAM data is unchanged (after power-up undefined).
9.2
Power-down
The chip is in Power-down mode if the display is off
(DON = 0) and display all points is on (DAL = 1),
regardless of the order in which both bits are set. During
the Power-down mode almost all static currents are
switched off (no internal oscillator, no timing and no LCD
segment drive system), and all LCD outputs are internally
connected to V
SS
. The V
LCD
generator is switched off (but
HVE is not affected). The serial interface function remains.
RAM data is unchanged. When exiting the Power-down
mode, the V
OS
value is stored in a register.
9.3
LCD voltage selector
The practical value for V
LCD
is determined by equating
V
off(rms)
with a defined LCD threshold voltage (V
th
),
typically when the LCD exhibits approximately 10%
contrast.
9.4
Oscillator
The internal logic operation and the multi-level drive
signals of the OM6211 are clocked by the built-in RC
oscillator. No external components are required. The
oscillator is in operation as long as the chip is not in
Power-down mode.
9.5
Timing
The timing of the OM6211 organizes the internal data flow
of the device. The timing also generates the LCD frame
frequency that is derived from the clock frequency
generated by the internal clock generator.
9.6
Column driver outputs
The LCD drive section includes 84 column outputs, which
should be connected directly to the LCD. The column
output signals are generated in accordance with the
multiplexed row signals and with the data in the display
latch. If less than 84 columns are required, the unused
column outputs should be left open-circuit.
9.7
Row driver outputs
The LCD drive section includes 48 row outputs, which
should be connected directly to the LCD. If less than
48 rows are required, the unused row outputs should be
left open-circuit.
相關(guān)PDF資料
PDF描述
OM62112 48 X 84 dot matrix LCD driver
OM6211F1 48 X 84 dot matrix LCD driver
OM6211U 48 X 84 dot matrix LCD driver
OM6213 48 x 84 pixels matrix LCD driver
OM6218SP1 TRANSISTOR | MOSFET | MATCHED PAIR | N-CHANNEL | 60V V(BR)DSS | 20A I(D) | SIP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
OM62112 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:48 X 84 dot matrix LCD driver
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
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