參數(shù)資料
型號(hào): HD66724
廠商: Hitachi,Ltd.
英文描述: Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動(dòng)器)
中文描述: 圖形液晶顯示控制器/鍵掃描功能(帶鍵掃描功能的圖形液晶顯示控制器/驅(qū)動(dòng)器驅(qū)動(dòng)程序)
文件頁數(shù): 60/117頁
文件大?。?/td> 834K
代理商: HD66724
HD66724/HD66725
60
Table 35
Key Scan Cycles for Each Operating Frequency
KF1
KF0
Key Scan Pulse Width
Key Scan Cycle
0
0
0.25 ms
1.0 ms (32 clock cycles)
0
1
0.5 ms
2.0 ms (64 clock cycles)
1
0
1.0 ms
4.0 ms (128 clock cycles)
1
Note:
1
2.0 ms
8.0 ms (256 clock cycles)
The data is a value obtained when the oscillation frequency (fosc) is 32 kHz. The value depends on
the oscillation frequency.
4.0 ms
1.0 ms
KST0
KST1
KST2
KST3
Key scan cycle
Figure 27 Key Strobe Output Timing (KF1/0 = 10, fcp/fosc = 32 kHz)
Key matrix
Detail
Key strobe
KIN7
KIN6
KIN5
KIN4
KIN3
KIN2
KIN1
KIN0
KST0
KST1
KST2
KST3
D
32
D
22
D
12
D
02
D
33
D
23
D
13
D
03
D
30
D
20
D
10
D
00
D
31
D
21
D
11
D
01
D
34
D
24
D
14
D
04
D
35
D
25
D
15
D
05
D
36
D
26
D
16
D
06
D
37
D
27
D
17
D
07
HD66724
HD66725
Key state fetch
Figure 28 Key Scan Configuration
相關(guān)PDF資料
PDF描述
HD66725 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動(dòng)器)
HD66726 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動(dòng)器)
HD66727 Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動(dòng)器)
HD66728 112 x 80-dot Graphics LCD Controller/Driver(112 x 80點(diǎn)圖形LCD控制器)
HD66730 Dot-Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66724/HD66725 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HD66724RA03TA0L 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD CONTROLLER
HD66725 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver
HD66725A03TA0L 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD CONTROLLER
HD66726 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions