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參數資料
型號: W81C280
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: USB Keyboard/ Device Controller(具有通用串行總線接口的鍵盤/設備控制器)
中文描述: 8-BIT, MROM, MICROCONTROLLER, PDIP40
封裝: DIP-40
文件頁數: 25/27頁
文件大小: 328K
代理商: W81C280
W81C280
Publication Release Date: July 1997
- 21 -
Revision 0.50
9. USB KEYBOARD SAMPLE APPLICATION
VCC
VCC
VCC
VCC3
VCC
VCC
VCC
VCC3
VCC
VCC3
VCC
VCC
VCC3
VCC
VCC
Select I D, matri x codes fromext ernal EEPROM
(42 pi n DIP)
5V t o 3.3V
R0
R1
R2
R3
R4
R5
R6
R7
U+
U-
LED0
LED1
LED2
U-
U+
XTAL2
R0
R1
R2
R3
R4
R5
R6
R7
XTAL1
SCL
PSCLK
PSDA
XTAL2
PSDA
PSCLK
XTAL1
SCL
SDA
R1
30
R2
30
C1
47p
C2
47p
JP1
PS/2 MOUSE
1
2
3
4
5
6
C3
10u
JP2
USB-CONN
1
2
3
4
5
6
R3
1K
LED1
R4
1.5K
C4
30p
C5
30p
LED2
LED3
LED4
R5
3.3K
R6
560
R7
560
R8
560
C6
0.1u
C7
10u
+
C8
10u
+
C9
10u
+
C10
10u
+
C11
0.1u
C12
0.1u
C13
0.1u
C14
0.1u
C15
0.1u
C16
0.1u
X1
6M HZ
C17
1u
+
C18
1u
+
RP1
9P8R-10K
COM
R1
R2
R3
R4
R5
R6
R7
R8
1
2
3
4
5
6
7
8
9
U3
24LC04B
A0
A1
A2
VSS
1
2
3
4
SDA
5
SCL
6
RC
7
VCC
8
U2
W81C280B-04
KBSI0
KBSI2
KBSI3
KBSI4
KBSI5
KBSI6
KBSI7
22
23
24
25
26
27
28
29
KBSO4
KBSO5
KBSO6
KBSO7
KBSO8
36
35
34
33
2
KBSO9
KBSO10
KBSO11
KBSO12
KBSO14
KBSO15
KBSO16
KBSO17
3
4
5
6
7
8
9
1
42
VDD
41
VDD3/EA#
32
VSSA
18
VSS
21
RESET
10
XTAL2
19
XTAL1
20
EEPROMCLK
EEPROMDATA
11
12
PSCLK
PSDATA
13
14
KBSO3
37
LED0
LED1
LED2
15
16
17
D-
30
D+
31
KBSO0
KBSO1
40
39
38
U1
MIC5207-3.3BZ
VI
1
G
N
D
2
VO
3
L2
FB
L3
FB
L4
FB
L1
FB
U-
U+
ScanIn0
ScanIn1
ScanIn2
ScanIn4
ScanIn5
ScanIn6
ScanIn7
WINBOND W81C280 USB KEYBOARD
Title
B
Size
Document Number
Rev
Friday, December 12, 1997
Date:
1
1
Sheet
o
ScanOut0
ScanOut1
ScanOut2
ScanOut3
ScanOut5
ScanOut6
ScanOut8
ScanOut9
ScanOut10
ScanOut11
ScanOut13
ScanOut15
ScanOut17
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