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UPD17202AGF-011 Datasheet(PDF) 5 Page - NEC

Part No. UPD17202AGF-011
Description  4-BIT SINGLE-CHIP MICROCONTROLLER WITH LCD CONTROLLER/DRIVER AND KEY SCAN CIRCUIT FOR FPC FRONT PANEL CONTROLLER
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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UPD17202AGF-011 Datasheet(HTML) 5 Page - NEC

 
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5
µPD17202AGF-011
Pin No.
42
43
44, 45
50, 51
52, 53
54
46
47
48
49
55
56
57
59
60
61
62
to
64
Symbol
BLANK
DATA
IC
VDD
XIN
XOUT
RESET
VLCDC
VLCD0
VLCD1
VLCD2
CAPL
CAPH
COM0
to
COM2
Pin Name
Blank input
Serial data I/O
Internally connected
Power supply
Crystal resonator
Reset input
LCD reference
voltage adjustment
LCD regulator
LCD boosting
capacitor
Common signal
output of LCD
controller/driver
Description
By connecting an external controller to this pin, the display
of the LCD panel can be turned ON/OFF.
Input level
LCD display status
Low
Lights
High
Extinguishes
To control this pin, connect it to an external controller via
pull-up resistor; otherwise, connect it to GND via pull-down
resistor.
Serial communication data I/O pin.
This pin outputs data from the rising edge of the LOAD pin
(pin 28) after a key data output signal has been received,
to the next rising edge; otherwise, it inputs data.
Connect nothing to these pins.
Connect these pins to GND via pull-down resistor.
Short-circuit pins 52 and 53.
Connect this pin to VDD.
This is a common power supply pin (VDD = 2.2 to 5.5 V).
These pins are used to connect a crystal resonator.
Connect an 8-MHz ceramic oscillator or crystal resonator
to these pins. The accuracy of the watch is influenced
only by the oscillation frequency of the oscillator.
Reset input.
This pin is used to adjust the reference voltage for the
LCD driver.
Example
LCD regulator pin.
These pins connect a capacitor used to boost the LCD
driver voltage.
Connect a capacitor of 0.47
µF between the CAPL and
CAPH pins.
These pins output the common signals of the LCD
controller/driver.
I/O Format
Input
N-ch open-
drain output
Input
Input
CMOS 3-
state output
55
56
57
59
60
0.47 F
61
µ
0.47 F
µ
0.47 F
µ
0.47 F
µ
2 M
VLCDC
VLCD0
VLCD1
VLCD2
CAPL
CAPH
PD17202AGF-011
µ


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