PT6312_10 Datasheet, PDF (2/21 Pages) Princeton Technology Corp – VFD Driver/Controller IC

VFD Driver/Controller IC
BLOCK DIAGRAM
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URL: http://www.princeton.com.tw
PT6312
DI N
DOU T
CLK
STB
VDD
R
OSC
SW1
SW2
SW3
SW4
LED1
LED2
LED3
LED4
S e r i al
D at a
In t er fa ce
Control
Di sp l a y Me m o ry
(1 6 b i ts x 11 Wo r d s)
OSC
G e n e r al
Input
R e gi st er
Ti mi n g G en e r a to r
Ke y Ma tr i x
M emory
Se g me n t D r ive r /
G r i d D r iv er /
K e y S c an O u tp u t
LED
Driver
Di m mi n g Ci rc ui t
K1 K2 K3 K4
VDD GND VEE
G r id D ri ve r
SG1/KS1
SG2/KS2
SG3/KS3
SG4/KS4
SG5/KS5
SG6/KS6
SG7
SG8
SG9
SG10
S G 11
S G 1 2 /G R11
SG13/GR10
SG14/GR9
SG15/GR8
SG16/GR7
GR1
GR2
GR3
GR4
GR5
GR6
PT6312 V2.6
-2-
December, 2005