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PDF ( 数据手册 , 数据表 ) AD6315

零件编号 AD6315
描述 1/4- to 1/12 Duty VFD Controller/Driver
制造商 Anachip
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AD6315 数据手册, 描述, 功能
1/4- to 1/12 Duty VFD Controller/Driver
AD6315
Features
- Multiple display modes
(16-segment & 12-digit to 24-segment & 4-digit)
- Key scanning (16 x 2 matrix)
- Dimming circuit (eight steps)
- High-voltage output ( VEE (max) = VDD – 35V )
- 4 channel LED ports
- No external resistors necessary for driver outputs
(P-ch open-drain + pull-down resistor output)
- Serial interface (CLK, STB, DIN, DOUT)
- Package: 44-pin plastic QFP and LQFP
General Description
The AD6315 is a VFD (Vacuum Fluorescent Display
or fluorescent Indicator Panel) driver that is driven
on a 1/4- to 1/12- duty factor. It consists of 16
segments and 4 grids output lines, 8 segments /
grid output driving lines, a display memory, a control
circuit, and a key scan circuit. Serial data is input to
the AD6315 through a 3-wire serial interface. This
VFD driver is ideal as a peripheral device for a
single-chip microcomputer.
Pin Assignments
Seg20/Grid9
Seg21/Grid8
Seg22/Grid7
Seg23/Grid6
Seg24/Grid5
Grid4
Grid3
Grid2
Grid1
VDD
VSS
Seg9/KS9
Seg8/KS8
Seg7/KS7
Seg6/KS6
Seg5/KS5
Seg4/KS4
Seg3/KS3
Seg2/KS2
Seg1/KS1
VDD
VSS
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
1/16







AD6315 pdf, 数据表
1/4- to 1/12 Duty VFD Controller/Driver
AD6315
() Display mode setting commands
These commands initialize the AD6315 and select the number of segments and the number of grids
(1/4- to 1/12- duty, 16 segments to 24 segments).
When these commands are executed, the display is forcibly turned off, and key scanning is also stopped.
To resume display, the display command “ON” must be executed. If the same mode is selected, however,
nothing happens.
MSB
00
LSB
b2 b1 b0
Don't care
Display mode settings
0000: 4digits 24segments
0001: 5digits 23segments
0010: 6digits 22segments
0011: 7digits 21segments
0100: 8digits 20segments
0101: 9digits 19segments
0110: 10digits 18segments
0111: 11digits 17segments
1xxx : 12digits 16segments
Note: On power application, the 12-digit, 16-segment mode is selected.
() Data setting commands
These commands set data write and data read modes.
MSB
LSB
01
b3 b2 b1 b0
Don't care
Daat write and read mode settings
00: Write data to display memory
01: Write data to LED port
10: Read key data
11: Don't card
Address increment mode settings (Display memory)
0: Increments address after data has been written
1: Fixes address.
Test mode settings
0: Normal operation
1: Test mode
Note: For power application, the normal operation and address increment modes are set.
Anachip Corp.
www.anachip.com.tw
8/16
Rev. A5 Dec 29, 2003







AD6315 equivalent, schematic
1/4- to 1/12 Duty VFD Controller/Driver
Marking Information
AD6315
Part Number
Top view
AC
AD6315 X
XX XX XXX
QFP44/LQFP44
Logo
Blank: Nomal
F: Lead Free Package
ID code: internal
Nth week: 01~52
Year: "01" = 2001
"02" = 2002
Anachip Corp.
www.anachip.com.tw
16/16
Rev. A5 Dec 29, 2003










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