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參數資料
| 型號： | W66881CF |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | VFD(Vacuum Fluorescent Display) Controller/Driver(VFD驅動器/控制器) |
| 中文描述： | 變頻（真空熒光顯示屏）控制器/驅動器（VFD顯示驅動器/控制器） |
| 文件頁數： | 1/1頁 |
| 文件大小： | 18K |
| 代理商： | W66881CF |
W66881CF
VFD CONTROLLER/DRIVER
Winbond Corporate Headquarters
Tel : 886-3-5790666
Fax : 886-3-5796139
Taipei Sales Office
Tel : 886-2-7190505
Fax : 886-2-7197502
Winbond Electronics North America Corp.
Tel : 1-408-9436666
Fax : 1-408-9436668
Winbond Electronics H.K. Ltd.
Tel : 852-27513100
Fax : 852-27552064
Details are subject to change without notice. All trademarks are property of their respective holders. Apr. 1999
GENERAL DESCRIPTION
The W66881CF is a VFD (Vacuum Fluorescent Display)
controller/driver. It has two operation configurations: (1)
8
×
16 Configuration
which replaces the W66880CF
without the necessity of changing the original driver
program for W66880CF, and (2) 8
×
20 Configuration
which provides more segment drivers, and can be
programmed to drive a VFD from 4 grids by 20 segments
to 8 grids by 18 segments.
The W66881CF also includes a 24-key key scan circuit,
four LED ports and four general purpose input ports. Data
communication with the W66881CF is via a serial
interface.
FEATURES
Flexible display modes (4 to 8 grids)
4 grids
×
20 segments to 8 grids
×
18 segments
6
×
4 matrix key scanning
8 steps dimming circuit
High voltage output (V
DD
- V
EE
= 30V max)
Four 15 mA LED ports
Four general-purpose input port
Internal driver output pull-down resisters
Only one external resister is needed for the on chip
oscillator
Simple serial interface
Driver program compatible with W66880CF's (8x16
only)
48-pin PQFP
APPLICATIONS
VFD display driving and panel function control
Applicable to FUTABA Standardized VFD Panel
- Part#: 6-BT-265GK and 6-BT-267GK, both 6 grids
×
16 segments, for VCD Player
- Part#: 25u48109BAN, 6 grids
×
19 segments, for
DVD Player
Functional Block (8x20 configuration) Pin Configuration
Din
Dout
CLK
STB
OSC
Key[1:4]
SW[1:4]
LED[1:4]
Sg[1:18]
Sg[19:20]
/G[8:7]
G[1:6]
R
V
DD
4
20
18
2
2
8
6
2
key data memory
Scan Timing
Generator
Display memory
20 bits x 8 words
Serial
interface
OSC
Data
switch
Segment
Driver
Multi-
plexed
driver
Grid
driver
4-bit input latch
4-bit output latch
4
4
V
DD
V
EE
V
SS
V
D
Key3
K
S
S
S
S
S
S
S
S
SW1
SW2
SW3
SW4
CLK
STB
Key1
Key2
Dout
Din
V
SS
G
G
G
V
S
V
D
L
O
G
L
L
L
W66881
(8x20 Configuration)
12
11
10
9
8
7
6
5
4
3
2
1
4
4
4
4
4
4
4
4
4
3
3
3
1
1
1
1
1
1
1
2
2
2
2
2
26
27
28
29
30
31
32
33
34
35
36
25
G
G6
Sg20/G7
Sg19/G8
Sg17
Sg16
Sg15
Sg14
Sg13
Sg12
Sg11
S
S
Sg18
V
EE
8x20
Configuration
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