UPD16432BGC-001-9EU データシートの表示（PDF） - NEC => Renesas Technology
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UPD16432BGC-001-9EU Datasheet PDF : 36 Pages
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µPD16432B
PIN DESCRIPTIONS
Pin Symbol
Pin Name
SEG1/KS1 to
SEG8/KS8
Segment output/key source
output dual-function pins
SEG9 to SEG60 Segment outputs
SEG61/COM14 to Segment output/common
SEG85/COM10
output dual-function pins
COM0 to COM9
LED1 to LED4
Common outputs
LED output pins
SCK
Shift clock input
DATA
Data input/output
STB
KEY REQ
RESET
LCD OFF
SYNC
Strobe input
Key request output
Reset input
LCD off input
Synchro
OSCIN
OSCOUT
KEY1 to KEY4
VDD
VSS
VLCD
VLC1 to VLC5
Oscillation pins
Key data inputs
Logic power supply pin
GND pin
LCD drive voltage pin
LCD drive power supply
Pin No.
Function
26 to 33 Pins with dual function as dot matrix LCD segment outputs and
key scanning key source outputs
34 to 85 Dot matrix LCD segment outputs
86 to 90 Switchable to either dot matrix LCD segment outputs or com-
mon outputs
91 to 100 Dot matrix LCD common outputs
1 to 4 LED outputs are Nch open-drain.
17
Data shift clock
Data is read on rising edge, and output on falling edge.
18
Performs input of commands, key data, etc., and key data
output. Input is performed from the MSB on the rise of the shift
clock, and the first 8 bits are recognized as a command. Output
is performed from the MSB on the fall of the shift clock.
Output is Nch open-drain.
19
Data input is enabled when “H”. Command processing is
performed on a fall.
16
“H” if there is key data, “L” if there is none. Key data can be read
irrespective of the state of this pin. Output is CMOS output.
15
Initial state is set when “L”.
14
When “L”, a forced LCD off operation is performed, and SEGn
& COMn output the unselected waveform.
13
Synchronization signal input/output pin. When 2 or more chips
are used, wired-OR connection is made to each chip. A pull-up
resistor is also required when one chip is used.
20
Connect oscillator resistor.
21
22 to 25 Key scanning key data inputs.
12
Internal logic power supply pin
5
GND pin
11
LCD drive power supply pin
10 to 6 Dot matrix LCD drive power supply
4
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