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PDF AD6311 Data sheet ( Hoja de datos )
| Número de pieza | AD6311 | |
| Descripción | 1/8- to 1/16 Duty VFD Controller/Driver | |
| Fabricantes | Anachip | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AD6311 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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1/8- to 1/16 Duty VFD Controller/Driver
AD6311
Features
- 4-pin serial interface
- Key scanning (12x4 matrices)
- Programming display modes (16-digit & 12-
segment to 8-digit & 20-segment)
- Programming dimming step
- High-voltage output (VDD-35V max)
- 5 channels LED ports
- 4-pin general-purpose input port
- Built-in oscillator
- No external resistor necessary for driver outputs
Pin Assignments
General Description
The AD6311 is a VFD (Vacuum Fluorescent
Display) controller/driver that is driven on a 1/8- to
1/16 duty factor (include key scan). It consists of 12
segment/key scan output lines, 8 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 AD6311 through a four-line serial
interface.
Grid5
Grid4
Grid3
Grid2
Grid1
VDD
LED5
LED4
LED3
LED2
LED1
VSS
OSC
40
41
42
43
44
45
46
47
48
49
50
51
52
26 Seg12 / KS12
25 Seg11 / KS11
24 Seg10 / KS10
23 Seg9 / KS9
22 Seg8 / KS8
21 Seg7 / KS7
20 Seg6 / KS6
19 Seg5 / KS5
18 Seg4 / KS4
17 Seg3 / KS3
16 Seg2 / KS2
15 Seg1 / KS1
14 VDD
Use all the 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. A5 Dec 29, 2003
1/11
1 page  
1/8- to 1/16 Duty VFD Controller/Driver
AD6311
Function Description
1.0 Command
A command sets the display mode and status of the VFD driver. The first 1 byte input to the AD6311
through the Din pin after the STB pin has fallen is regarded as a command. If STB is made high while a
command/data is transmitted, serial communication is initialized, and the command/data being
transmitted is invalid (however, the command/data already transmitted remains valid).
1.1 Display mode setting command
This command initializes the AD6311 and selects the number of segments and number of grids (8 grid
& 20 segments to 16 grid & 12 segments). When this command is executed, display is forcibly turned
off, and key scanning is also stopped. To resume display, a display ON command must be executed. If
the same mode is selected, however, nothing is performed.
MSB
LSB
0 0 - - b3 b2 b1 b0
Don't care
Selects display mode
0xxx : 8 digits, 20 segments
1000: 9 digits, 19 segments
1001: 10 digits, 18 segments
1010: 11 digits, 17 segments
1011: 12 digits, 16 segments
1100: 13 digits, 15 segments
1101: 14 digits, 14 segments
1110: 15 digits, 13 segments
1111: 16 digits, 12 segments
On power application, the 16-digit, 12-segment mode is selected.
1.2 Data setting command
This command sets data write and data read modes. On power application, the normal operation mode
and address increment mode are set.
MSB
LSB
0 1 - - b3 b2 b1 b0
Don't care
Sets data write and read modes.
00: Writes data to display memory.
01: Writes data to LED port.
10: Reads key data.
11: Reads SW data.
Sets address increment mode (display memory).
0: Incremenets address after data has been
written.
1: Fixes address.
Sets test mode
0: Normal operation
1: Test mode
Anachip Corp.
www.anachip.com.tw
5/11
Rev. A5 Dec 29, 2003
5 Page 
1/8- to 1/16 Duty VFD Controller/Driver
Package Information
52 pins QFP dimension
Unit: mm
17.2 ± 0.5
14.0 ± 0.5
39
40
27
26
AD6311
2.7(MAX.)
14.0 17.2
± 0.5 ± 0.5
52
1
14
13
1.6 TYP.
0.15 TYP.
0.4 TYP. 1.0 TYP.
Marking Information
0.88 TYP.
Part Number
Top view
AC
AD6311 X
XX XX XXX
Logo
Blank: Nomal
F: Lead Free Package
QFP52
ID code: internal
Nth week: 01~52
Year: "01" = 2001
"02" = 2002
Anachip Corp.
www.anachip.com.tw
11/11
Rev. A5 Dec 29, 2003
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AD6311.PDF ] | |
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