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  NEC Electronic Components Datasheet  

D16312 Datasheet

UPD16312

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D16312 pdf
DATA SHEET
MOS INTEGRATED CIRCUIT
PD16312
1/4- to 1/11-DUTY FIPTM (VFD) CONTROLLER/DRIVER
The PD16312 is a FIP (fluorescent Indicator Panel, or Vacuum Fluorescent Display) controller/driver that is
driven on a 1/4- to 1/11 duty factor. It consists of 11 segment output lines, 6 grid output lines, 5 segment/grid output
drive lines, a display memory, a control circuit, and a key scan circuit. Serial data is input to the PD16312 through a
www.DataSheet4U.comthree-line serial interface. This FIP controller/driver is ideal as a peripheral device for a single-chip microcomputer.
FEATURES
• Multiple display modes (11-segment & 11-digit to 16-segment & 4-digit)
• Key scanning (6  4 matrix)
• Dimming circuit (eight steps)
• High-voltage output (VDD  35 V max).
• LED ports (4 chs., 20 mA max).
• General-purpose input port (4 bits)
• 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
PD16312GB-3B4
Package
44-pin plastic QFP ( 10)
Document No. IC-3307 (1st edition)
Date Published March 1997 P
Printed in Japan
© 1993


  NEC Electronic Components Datasheet  

D16312 Datasheet

UPD16312

No Preview Available !

D16312 pdf
BLOCK DIAGRAM
DIN
DOUT
CLK
Serial I/F
STB
www.DataSheet4UV.cDoDm
R
OSC
Key1
to
Key4
4
SW1
to
SW4
4
4-bit
latch
PD16312
Command decoder
Dimming circuit
Display memeory
16 bits × 11 words
Timing generator key scan
Key data memory (4 × 6)
4-bit latch
LED1
LED4
Key data memory (4 × 6)
16-bit 16
output
latch
5
11
Seg-
ment
driver
Seg1
Seg11
Data 5
selector
11-bit
shift
register
5
11
6
Grid
driver
Seg12/Grid11
Seg16/Grid7
Grid1
Grid6
VDD
VSS
VEE
(+5 V) (0 V) (30 V)
2


Part Number D16312
Description UPD16312
Maker NEC
Total Page 20 Pages
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