參數(shù)資料
型號： S-4544A
廠商： Seiko Instruments Inc.
英文描述： LCD Controller-Driver With Built-in 8-Bit and Serial Interfaces(內(nèi)置8位和串行接口的LCD控制器-驅(qū)動器)
中文描述： LCD控制器與- 8內(nèi)置驅(qū)動器位和串行接口（內(nèi)置8位和串行接口的液晶顯示控制器-驅(qū)動器）
文件頁數(shù)： 31/39頁
文件大?。?/td> 237K
代理商： S-4544A
LCD Controller-Driver
S-4544A
30
Seiko Instruments Inc.
2.
LCD Power Supply Circuit Electrical Characteristics
3.
References
Table 17 References
Conditions
Parameter
Input Pin Capacity
Symbol
C
IN
Min.
Typ.
5
Max.
8
Unit
pF
Note
Note 3
Ta=25
°
C
Note 1
Sharp variation in the supply voltage or input signal voltage due to strange noises may lead to a
malfunction of the IC. Supply stable supply voltage and input signal voltage.
If you change the level of the supply voltage intentionally, a malfunction may occur. NEVER CHANGE
the level of the supply voltage.
Note 2
When the external bias voltage is input, V
DD
≥
V1, V2, V3, V4
≥
V5, VSS>V5. There is no limitation for
determining the voltage level of V1, V2, V3, and V4.
Note 3
Pins A0, CSX, RDX, R/WX, C86, P/SX, OSC1, FNC1 and FNC2.
Pins D0 to D7 during display data write and command input.
Fully swing the levels V
IH
and V
IL
of the input signal within the range of power supply voltage so that the
state is V
IH
=V
DD
, V
IL
=V
SS
. When the level of V
IH
and V
IL
is the middle level of the supply voltage, the
through current flowing through the input pin and the current consumption may be increased.
Parameter
Operating Voltage
Boosting Output
Voltage
Symbol
V
SS
V
OUT
Conditions
Min.
-5.5
-11.0
Typ.
Max.
-2.4
Unit
V
V
Note
Note 13
Triple boosting: Up to V
SS
=-3.6V
Double boosting: Up to V
SS
=-5.5V
1/4 Bias
1/5 Bias
1/6.7 Bias
-11.0
-11.0
-11.0
-11.0
-4.0
-4.5
-5.5
-2.7
V
5
V
Note 14
LCD Driver
Operating Voltage
Built-in LCD Circuit
Current
Consumption
V
LCD
V
Note 15
I
SSL
V
OUT
=-10.0 V
Double Boosting
V
SS
=-5.0 V
V5=-8.0 V 1/5 Bias
Osc. Frequency: 18 kHz
V5=-8.0V 1/5 Bias
-200
-90
μ
A
Note 16
External LCD Power
Supply Used: LCD
Driver Current
Consumption
Reference Voltage
I
V5
-75
-30
μ
A
Note 17
V
REF
VREF=+0.01%/
°
C
VREF=-0.13%/
°
C
-2.4
-2.2
-2.0
-1.7
-1.5
-1.3
Reference Current
I
REF
Fine adjustment data (1111)
Ta=25
°
C
1.5
2.5
4.0
μ
A
Note 19
V
1
1/4 V5-0.1
1/4 V5
1/4 V5+0.1
V
2
2/4 V5-0.1
2/4 V5
2/4 V5+0.1
V
3
2/4 V5-0.1
2/4 V5
2/4 V5+0.1
V
4
3/4 V5-0.1
3/4 V5
3/4 V5+0.1
V
1
1/5 V5-0.1
1/5 V5
1/5 V5+0.1
V
2
2/5 V5-0.1
2/5 V5
2/5 V5+0.1
V
3
3/5 V5-0.1
3/5 V5
3/5 V5+0.1
V
4
4/5 V5-0.1
4/5 V5
4/5 V5+0.1
V
1
1/6.75 V5-0.1
1/6.75 V5
1/6.75 V5+0.1
V
2
2/6.75 V5-0.1
2/6.75 V5
2/6.75 V5+0.1
V
3
4.75/6.75 V5-0.1
4.75/6.75 V5
4.75/6.75.V5+0.1
V
4
5.75/6.75 V5-0.1
5.75/6.75 V5
5.75/6.75 V5+0.1
Table 16
LCD Power Supply Circuit Electrical Characteristics
(Unless otherwise specified VDD=0 V, VSS=-2.4 to -5.5, Ta=-30 to 85
°
C)
LCD Supply Circuit
Operating Voltage
LCD
drive bias voltage
(1/4 bias)
LCD
drive bias voltage
(1/5 bias)
LCD
drive bias voltage
(1/6.75 bias)
V
Note 20
V5=-4.0V to -11.0V
V5=-4.5V to -11.0V
V5=-5.5V to -11.0V
V
Note 18
Ta=25
°
C
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