AD6312 Datasheet PDF - Anachip

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AD6312
Anachip

Part Number AD6312
Description 1/4- to 1/11 Duty VFD Controller/Driver
Page 13 Pages


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1/4- to 1/11 Duty VFD Controller/Driver
AD6312
Features
˙4-pin serial interface
˙Key scanning (6× 4 matrices)
˙Programming display modes (11-segments & 11-
digits to 16-segments & 6-digits)
˙Programming dimming step
˙High-voltage output (VDD-35V max).
˙4 channels LED ports.
˙4-pin General-purpose input port
˙Built-in oscillator
˙No external resistor necessary for driver outputs
General Description
The AD6312 is a VFD (Vacuum Fluorescent
Display) controller/driver that is driven on a 1/4- to
1/11 duty factor (include key scan). It consists of 5
segment output lines, 6 segment/key scan 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
AD6312 through a four-line serial interface.
Pin Assignments
Grid4
Grid3
Grid2
Grid1
VDD
LED4
LED3
LED2
LED1
VSS
OSC
34
35
36
37
38
39
40
41
42
43
44
22 Seg8
21 Seg7
20 Seg6 / KS6
19 Seg5 / KS5
18 Seg4 / KS4
17 Seg3 / KS3
16 Seg2 / KS2
15 Seg1 / KS1
14 VDD
13 Key4
12 Key3
Use all power pins.
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. A4 Dec 29, 2003
1/13

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