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MX83093 の電気的特性と機能

MX83093のメーカーはLIZEです、この部品の機能は「U+P Keyboard Encoder」です。


製品の詳細 ( Datasheet PDF )

部品番号 MX83093
部品説明 U+P Keyboard Encoder
メーカ LIZE
ロゴ LIZE ロゴ 




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MX83093 Datasheet, MX83093 PDF,ピン配置, 機能
Shenzhen LIZE Electronic Technology Co., Ltd
SPECIFICATION
MX83093
U+P Keyboard Encoder
Version 1.0
Reserves the right to change this documentation without prior notice

1 Page





MX83093 pdf, ピン配列
Tel:86-755-8835 3502/03/04 Fax:86-755-8835 3509
Website:http://www.lizhiic.com
MX83093
USB+PS/2 Keyboard Encoder
1.INTRODUCTION
The MX83093 is a single chip keyboard encoder, these devices detect the key press and release
activity, sends the scan code to system, and accepts the command from system. The MX83093 function
both in USB and PS/2 interface environment. For PS/2 interface, it supports IBM PC AT and all
compatible machines. For USB interface, it supports the USB standard request version 1.1 as well as
HID class request version 1.1.
The MX83093 is the most powerful USB+PS2 keyboard encoder. It is a crystal-less and low cost
BOM solution with the minimal external components.
2. FEATURE
· Operating voltage 4.4V~5.5V
· Universal Serial Bus Specification Version 1.1
· USB Device Class Definition for Human Interface Device (HID), Firmware Specification Version 1.1
· Support scan code set 1, 2 and 3 for PS/2
· Support HID Usage ID for USB
· Support PC PS/2 and USB keyboard
· Support USB Sleep Mode
· 104/107 keys with multi-media or other special application keyboard encoder
· Compatible whit Windows7, Windows Vista, WindowsXP, Windows2000, Windows ME, Windows98,
MAC OS,Cent OS and Linux
· Support multi-media or other special application keyboard encoder
· Phantom key detects
· A watch dog timer with its own on-chip RC oscillator to prevent system stand still
· Built-in power on reset (POR)
· Power-up timer (PWRT)
· Oscillator Startup timer (OST)
· Built in low voltage reset (LVR)
· Low power CMOS device technology
· Compatible Silver&carbon Membrane {Impedance Max(250kohm)}
3. APPLICATIONS
· USB and PS/2 both compatible with Keyboard.
· IBM PC AT or compatible machine keyboard.
· IBM PS/2 model 30,50,60,80 or compatible keyboard.
· Apple PC USB keyboard.
· Japanese keyboard.
· Korean keyboard.
Shenzhen LIZE Electronic Technology Co., Ltd
Version: 1.0
Date: 14.Sep.2012
Page: 3 of 31


3Pages


MX83093 電子部品, 半導体
Tel:86-755-8835 3502/03/04 Fax:86-755-8835 3509
Website:http://www.lizhiic.com
MX83093
USB+PS/2 Keyboard Encoder
5.1.4 KEYBOARD DATA OUTPUT
When the keyboard is ready to send data to the system, it first checks the clock and data lines. If
either one is in the low state, data is stored in the keyboard buffer. If both are in the high state,
keyboard starts clocking data out. Data is valid before the trailing edge and after the leading edge
of the clock pulse. During the transmission, the keyboard checks the clock line at least every 60
microseconds. If the system lowers the clock lines before the leading edge of the 10th clock, the
keyboard should stop sending, then buffers the data and return the clock and data lines to a high
state.
5.1.5 KEYBOARD DATA INPUT
When the system is ready to send data to the keyboard, it first checks the clock line to see if
keyboard is sending data. If keyboard is not sending data or it is sending data but has not reached
the 10th clock, the system can inhibit the interface by forcing the clock line low for more than 60
microseconds and prepares to send data. The keyboard checks the clock line status at least every
5 milliseconds. If a system Request to Send (RTS) is detected, the keyboard clocks 11 bits in.
After the 10th bit, the keyboard checks for a high state in the data line then pulls it low and clocks
one more bit to signal the system that data has been received. If data is low after the 10th bit, it
indicates a frame error. The keyboard should continue to count until the data line goes high, then
pulls it low and issues a RESEND to the system.
5.1.6 COMMAND FROM THE SYSTEM
The system can send commands to the keyboard at any time. The keyboard needs to respond
within 20 milliseconds, unless the system prevents keyboard output, when doing self test or
executing a reset. The following are the keyboard input commands and the actions that the
keyboard needs to take.
Set /Reset Status indicators (Hex ED)
-Responds with ACK –Receives option byte –Responds with ACK –Updates status indicators
–Returns to previous scanning state
Echo (Hex EEH)
-Responds with EE hex –Returns to previous scanning state
Invalid commands (Hex EF and F1)
-Returns a RESEND command –Returns to previous scanning state
Shenzhen LIZE Electronic Technology Co., Ltd
Version: 1.0
Date: 14.Sep.2012
Page: 6 of 31

6 Page



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部品番号部品説明メーカ
MX83093

U+P Keyboard Encoder

LIZE
LIZE


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