參數(shù)資料
型號(hào)： EKK6111
英文描述： QFN Packaged, ±15kV ESD Protected, +3V to +5.5V, 300nA, 250kbps, RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply; Temperature Range: -40°C to 85°C; Package: 32-QFN
中文描述： 的PS / 2鍵盤(pán)射頻接收器
文件頁(yè)數(shù)： 12/17頁(yè)
文件大?。?/td> 1084K
代理商： EKK6111
eKK6111
RF KEYBOARD DECODER
Preliminary
- Sets the default typematic rate/delay.
- Clears last typematic key.
- Receives options key.
- Responds ACK.
- Option byte =
01: selects scan code set 1
02: selects scan code set 2
03: selects scan code set 3
- Returns to previous scanning state.
Read ID (Hex F2)
- Responds with ACK.
- Discontinues scanning.
- Sends two ID Bytes. The second byte will be sent within 500 S after first byte.
- Resumes scanning.
Set Typematic Rate/Delay (Hex F3)
-
Responds ACK.
-
Receives rate/delay value byte.
-
Responds ACK.
-
Set rate/delay (* Note1)
-
Returns to previous scanning state.
*Note 1
1.
Repeat period = (8+A) x (2
B) x 0.00417 seconds
A: binary value of bits 2, 1, and 0.
B: binary value of bits 4 and 3.
2.
Delay = (C+1) x 250 milliseconds
C: binary value of bits 6 and 5. Bit 7 is always 0.
bit 4 ~ bit 0
Typematic rate ± 20%
bit 4 ~ bit 0
Typematic rate ± 20%
00000
30.0
10000
7.5
00001
26.7
10001
6.7
00010
24.0
10010
6.0
00011
21.8
10011
5.5
00100
20.0
10100
5.0
00101
18.5
10101
4.6
00110
17.1
10110
4.3
00111
16.0
10111
4.0
01000
15.0
11000
3.7
01001
13.3
11001
3.3
01010
12.0
11010
3.0
01011
10.9
11011
2.7
01100
10.0
11100
2.5
01101
9.2
11101
2.3
01110
8.6
11110
2.1
01111
8.0
11111
2.0
3. default rate = 10.9 chars/sec ± 20%
Default delay = 500 mS ± 20%
Enable (Hex F4)
- Responds with ACK.
* This specification are subject to be changed without notice.
4
2002/11/15
相關(guān)PDF資料
PDF描述
EKK8011 Low-Voltage, Single Supply, SPST, High Performance Analog Switches; Temperature Range: -40°C to 85°C; Package: 8-SOIC T&R
EKK8301 Low-Voltage, Single Supply, SPST, High Performance Analog Switches; Temperature Range: -40°C to 85°C; Package: 8-SOIC T&R
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