EM83053BH Datasheet PDF - ELAN Microelectronics Corp
| Part Number | EM83053BH | |
| Description | KEYBOARD ENCODER | |
| Manufacturers | ELAN Microelectronics Corp | |
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EM83053A/BH
KEYBOARD ENCODER
GENERAL DESCRIPTION
The EM83053A/BH microcontroller is dedicated to a keyboard encoder ,specially designed for IBM PC AT and
all compatible machines. The EM83053A/BH controll all scan codes, three LEDs status, scan timing and
communications between the keyboard and PC. It is easy to implement a high performance, low cost keyboard
with the minimal external components.
FEATURES
• Low cost - eliminate need external components.
• Phantom key detects.
• RC oscillator ( 1.8432MHz ).
• Support scan code set 1 ,2 and 3.
• Support PC AT and PS/2 keyboard .
• Low power CMOS device technology.
• Internal pull-up resistor.
• Tri-state outputs for easy board application.
• Built-in 4K ROM.
• Support WINDOWSTM 95, 98, 2000 keys.
• 104/107 keys with multi-media or other special application keyboard encoder.
• WINDOWS is registered trademarks of Microsoft corperation.
APPLICATION
• IBM PC AT or compatible machine keyboard.
• IBM PS/2 model 30,50,60,80 or compatible machine keyboard.
• Japanese keyboard.
• Korean keyboard.
• Brazilian keyboard.
• European keyboard.
PIN ASSIGNMENTS
P91 6
P92 7
P93 8
XT 9
P95 10
P50 11
P51 12
P52 13
P53 14
P54 15
EM83053AH
36 NUM
35 SCROLL
34 P67
33 P66
32 P65
31 P64
30 P63
29 P62
28 P61
27 P60
P91 6
P92 7
P93 8
P94 9
P95 10
P50 11
P51 12
P52 13
P53 14
P54 15
EM83053BH
36 NUM
35 SCROLL
34 P67
33 P66
32 P65
31 P64
30 P63
29 P62
28 P61
27 P60
* This specification are subject to be changed without notice.
6.9.2000 1
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EM83053A/BH
KEYBOARD ENCODER
bit 4~ bit 0
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
typematic rate ± 20%
30.0
26.7
24.0
21.8
20.0
18.5
17.1
16.0
15.0
13.3
12.0
10.9
10.0
9.2
8.6
8.0
3. Default rate = 10.9 chars/sec + 20%
Default delay = 500 mS ± 20%
Enable ( Hex F4 )
- Responds with ACK.
- Clears output buffer.
- Clears last typematic key.
- Start scanning.
Default Disable (Hex F5)
- Responds with ACK.
- Resets all conditions to power-on state.
- Clears output buffer.
- Sets the default key type ( scan code set 3 only ).
- Set the default typematic rate/delay.
- Clears last typematic key.
- Stops scanning,
Set Default (Hex F6 )
- Responds with ACK.
- Resets all conditions to power-on state.
- Clears output buffer.
- Sets the default key type ( scan code set 3 only ).
- Set the default typematic rate/delay.
- Clears last typematic key.
- Continues scanning,
Set All Keys ( Hex F7,F8,F9,FA )
* This specification are subject to be changed without notice.
bit 4~ bit 0
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
typematic rate ± 20%
7.5
6.7
6.0
5.5
5.0
4.6
4.3
4.0
3.7
3.3
3.0
2.7
2.5
2.3
2.1
2.0
6.9.2000 5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for EM83053BH electronic component. |
| Information | Total 24 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ EM83053BH.PDF Datasheet ] | |
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