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PDF UPD16315GB-3BS Data sheet ( Hoja de datos )

Número de pieza UPD16315GB-3BS
Descripción 1/4- to 1/12-DUTY FIP(VFD) CONTROLLER/DRIVER
Fabricantes NEC 
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16315
1/4- to 1/12-DUTY FIPTM(VFD) CONTROLLER/DRIVER
DESCRIPTION
The µPD16315 is a FIP (Fluorescent Indicator Panel, or Vacuum Fluorescent Display) controller/driver that is driven on a
1/4- to 1/12- duty factor. It consists of 16 segment output lines, 4 grid output lines, 8 segment/grid output drive lines, a
display memory, a control circuit, and a key scan circuit. Serial data is input to the µPD16315 through a three-line serial
interface. This FIP controller/driver is ideal as a peripheral device for a single-chip microcomputer.
FEATURES
Multiple display modes: 16-segment & 12-digit to 24-segment & 4-digit
Key scanning: 16 x 2 matrix
Dimming circuit: 8 steps
High-withstanding-voltage output: VDD 35 V MAX.
LED ports: 4 chs., 20 mA MAX.
No external resistors necessary for driver outputs: P-ch open-drain + pull-down resistor output
Serial interface: CLK, STB, DIN, DOUT
ORDERING INFORMATION
Part Number
µPD16315GB-3BS
Package
44-pin Plastic QFP (10 x 10)
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Document No. S14074EJ1V0DS00 (1st edition)
Date Published February 2003 NS CP(K)
Printed in Japan
1999

1 page




UPD16315GB-3BS pdf
µPD16315
4. DISPLAY RAM ADDRESS AND DISPLAY MODE
The display RAM stores the data transmitted to the µPD16315 through the serial communication. The addresses are
allocated in 8-bit units.
Seg1 Seg4
00HL
03HL
06HL
09HL
0CHL
0FHL
12HL
15HL
18HL
1BHL
1EHL
21HL
Seg8
00HU
03HU
06HU
09HU
0CHU
0FHU
12HU
15HU
18HU
1BHU
1EHU
21HU
Seg12
01HL
04HL
07HL
0AHL
0DHL
10HL
13HL
16HL
19HL
1CHL
1FHL
22HL
Seg16
01HU
04HU
07HU
0AHU
0DHU
10HU
13HU
16HU
19HU
1CHU
1FHU
22HU
Seg20
02HL
05HL
08HL
0BHL
0EHL
11HL
14HL
17HL
1AHL
1DHL
20HL
23HL
Seg24
02HU
DIG1
05HU
DIG2
08HU
DIG3
0BHU
DIG4
0EHU
DIG5
11HU
DIG6
14HU
DIG7
17HU
DIG8
1AHU
DIG9
1DHU
DIG10
20HU
DIG11
23HU
DIG12
b0 b3 b4 b7
XXHL
XXHU
Lower 4 bits
Higher 4 bits
Data Sheet S14074EJ1V0DS
5

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UPD16315GB-3BS arduino
µPD16315
8. SERIAL COMMUNICATION FORMAT
Reception (command/data write)
STB
DIN
CLK
b0 b1 b2
123
If data continues
b6 b7
78
Transmission (data read)
STB
DIN b0 b1 b2 b3 b4 b5 b6 b7
CLK
DOUT
1 2 3 4 5 6 7 8 tWAITNote 1 2 3 4 5 6
b0 b1 b2 b3 b4 b5
A data read command is set.
Data is read.
Note When data is read, a wait time tWAIT of 1 µs is necessary since the rising of the eighth clock that has set the
command, until the falling of the first clock that has read the data.
Remark Because the DOUT pin is an N-ch, open-drain output pin, be sure to connect an external pull-up resistor
(1 to 10 k) to this pin.
Data Sheet S14074EJ1V0DS
11

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