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PDF ML9471 Data sheet ( Hoja de datos )
| Número de pieza | ML9471 | |
| Descripción | 1/3 1/4 1/5 Duty 80 Output LCD Driver | |
| Fabricantes | LAPIS | |
| Logotipo |  |
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Semiconductor
ML9471
1/3, 1/4, 1/5 Duty 80 Output LCD Driver
FEDL9471-01
Issue Date: Aug. 21, 2008
GENERAL DESCRIPTION
The ML9471 is a LCD driver for dynamic display providing 3-duty-switchable pins (1/3, 1/4, 1/5 duty). It can
directly drive LCDs of up to 400, 320 and 240 segments when 1/5, 1/4 and 1/3 duty are selected respectively.
FEATURES
• Operatin g range
Supply voltage
: 3.0 to 5.5 V
Operating temperature range
• Segment output
: 40 to + 105C
: 80 pins
1/5 duty
: Up to 400 segments can be displayed.
1/4 duty
: Up to 320 segments can be displayed.
1/3 duty
: Up to 240 segments can be displayed.
• Serial transfer clock frequency
: 4 MHz
• Serical interface with CPU
:Through three input pins (DATA_IN, LOAD, and CLOCK)
• Built-in oscillator circuit for COMMON signals
• One-to-one correspondence between input data and output data
When input data is at “H” level
: Display goes on.
When input data is at “L” level
: Display goes off.
• The entire display can be turned off. (BLANK pin)
• P ackage options
100-pin plastic TQFP (TQFP100-P-1414-0.50-K) (Product name: ML9471TB)
1/20
http://www.Datasheet4U.com
1 page  
LAPIS Semiconductor
FEDL9471-01
ML9471
ABSOLUTE MAXIMUM RATINGS
Parameter S
Supply Voltage
Input Voltage
Storage Temperature
Power Dissipation
Output Current
ymbol
VDD
VI
TSTG
PD
IO
Condition
Ta = 25°C
Ta = 25°C
—
Ta < 105°C
—
Rating
–0.3 to 6.5
–0.3 to VDD+0.3 V
–55 to 150
700
–2.0 to 2.0
Unit
V
°C
mW
mA
RECOMMENDED OPERATING CONDITIONS
Parameter S
Supply Voltage
CLOCK Frequency
Operating Temperature
ymbol
VDD
fCP
Ta
Condition
VLC3 = GND
—
—
Range
3.0 to 5.5
1 to 4
–40 to 105
Unit
V
MHz
°C
Oscillator Circuit
Parameter S
ymbol Applicable pin
Condition
Min.
Oscillator Resistance
R0 OSC_OUT — 20
Oscillator Capacitance
C0 OSC_OUT
— 0.00047
Current Limiting Resistance
R1
OSC_IN
— 62
Common Signal Frequency
fCOM
COM1 to COM5
—
25
Note: See Section, “Reference Data”, for the resistor and capacitor values in the table.
Max.
120
0.01
360
250
Unit
k
F
k
Hz
RC Values in Oscillator Circuit
Parameter
Oscillator Resistance
Oscillator Capacitance
Current Limiting Resistance
Symbol
R0
C0
R1
Example of an oscillator circuit:
Applicable pin
OSC_OUT
OSC_OUT
OSC_IN
1/3 duty
68
0.001
220
1/4 duty
51
0.001
160
1/5 duty
43
0.001
130
Unit
k
F
k
5/20
5 Page 
LAPIS Semiconductor
FEDL9471-01
ML9471
SEGn True Value Table:
LATCH1 L ATCH2 L ATCH3 L ATCH4 LATCH5 COM1 COM2 COM3
00001
“H” “M2” “M 2”
“L” “M1” “M 1”
“M2” “H” “M2”
“M1” “L” “M1”
“M2” “M 2”
“H”
“M1” “M 1”
“L”
“M2” “M 2” “M 2”
“M1” “M 1” “M 1”
“M2” “M 2” “M 2”
“M1” “M
*Note: “H” = VDD; “M1” = VLC1; “M2” = VLC2; “L” = VLC3=GND
1” “M
1”
COM4 COM5 SEGn
“M2” “M 2” “M 1”
“M1” “M 1” “M 2”
“M2” “M 2” “M 1”
“M1” “M 1” “M 2”
“M2” “M 2” “M 1”
“M1” “M 1” “M 2”
“H” “M2” “M 1”
“L” “M1” “M 2”
“M2”
“H”
“L”
“M1”
“L”
“H”
11/20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet ML9471.PDF ] | |
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