参数资料
| 型号： | LC75806PT-H |
| 厂商： | ON Semiconductor |
| 文件页数： | 20/35页 |
| 文件大小： | 0K |
| 描述： | IC LCD DISPL DVR KEY-INP 100TQFP |
| 标准包装： | 90 |
| 系列： | * |
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LC75806PT
Key input
(KS6 line)
Key scan
CE
615T[s]
615T[s]
DI
Serial data transfer
(KSC=0)
Serial data transfer
(KSC=0)
Key
address(43H)
Serial data transfer
(KSC=0)
Key
address
T= f
1
OSC
=
1
fCK
DO
Key data read request
Key data read
Key data read
Key data read request
4. Normal/sleep mode, when key scan operations are disabled
(1) The KS1 to KS6 pins are set to high or low level by the S0 and S1 bits in the control data.
(2) No key scan operation is performed, whichever key is pressed.
(3) If the key scan disabled state (KSC=1 in the control data) is set during a key scan, the key scan is stopped.
(4) If the key scan disabled state (KSC=1 in the control data) is set when a key data read request (a low level on DO) is
output to the controller, all the key data is set to 0 and the key data read request is cleared (DO is set high).
Note that DO, being an open-drain output, requires a pull-up resister (between 1 to 10k Ω ).
(5) The key scan disabled state is cleared by setting KSC in the control data to 0.
Key input 1
Key input 2
Key scan
CE
615T[s]
615T[s]
Serial data transfer
(KSC=0)
Serial data transfer
(KSC=1)
Serial data transfer
(KSC=0)
Serial data transfer
(KSC=1)
Serial data transfer
(KSC=0)
Key
Address(43H)
DI
DO
Key data read
Key data read request
Key data read request
T= f
1
OSC
= f
1
CK
Multiple Key Presses
Although the LC75806PT is capable of key scanning without inserting diodes for dual key presses, triple key presses on
the KI1 to KI5 input pin lines, or multiple key presses on the KS1 to KS6 output pin lines, multiple presses other than
these cases may result in keys that were not pressed recognized as having been pressed. Therefore, a diode must be
inserted in series with each key. Applications that do not recognize multiple key presses of three or more keys should
check the key data for three or more 1 bits and ignore such data.
No.A1425-20/35
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LC75806PTS-H | 功能描述:LCD 驱动器 RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| LC75806PTS-T-H | 功能描述:LCD 驱动器 RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| LC75808 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:1/8 to 1/10 Duty LCD Display Drivers with Key Input Function |
| LC75808E | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:1/8 to 1/10 Duty LCD Display Drivers with Key Input Function |
| LC75808W | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:1/8 to 1/10 Duty LCD Display Drivers with Key Input Function |
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