- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370838 > M34551 (Mitsubishi Electric Corporation) SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER PDF資料下載
參數(shù)資料
| 型號： | M34551 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 單芯片4位CMOS微機紅外遙控器 |
| 文件頁數(shù)： | 26/68頁 |
| 文件大?。?/td> | 698K |
| 代理商： | M34551 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁當前第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁
26
MITSUBISHI MICROCOMPUTERS
4551 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for
INFRARED REMOTE CONTROL TRANSMITTER
LCD FUNCTION
The 4551 Group has an LCD (Liquid Crystal Display) controller/
driver. When proper voltage is applied to the LCD power supply
input pins and data are set in timer control registers (W2, W3),
timer LC, LCD control registers (L1, L2), and LCD RAM, the LCD
controller/driver automatically reads the display data and controls
the LCD display by setting duty and bias.
4 common signal output pins and 20 segment signal output pins
can be used to drive the LCD. By using these pins, up to 80
segments (when 1/4 duty and 1/3 bias are selected) can be
controlled to display. When the required number of segment pins
is 19 or less, pins SEG
16
–SEG
19
(4) can be used as input ports
P2
0
–P2
3
.
(1) Duty and bias
There are 3 combinations of duty and bias for displaying data
on the LCD. Use bits 0 and 1 of LCD control register (L1) to
select the proper display method for the LCD panel being
used.
G
1/2 duty, 1/2 bias
G
1/3 duty, 1/3 bias
G
1/4 duty, 1/3 bias
Table 12 Duty and maximum number of displayed pixels
Duty
1/2
1/3
1/4
80 segments
Note: Leave unused COM pins open.
(2) LCD clock control
The LCD clock is determined by the timer 2 count source
selection bit (W2
3
), timer LC control bit (W3
0
), and timer LC.
Accordingly, the frequency (F) of the LCD clock is obtained
by the following formula. Numbers (
to
) shown below the
formula correspond to numbers in Figure 24, respectively.
G
When using the prescaler output (ORCLK) as timer 2 count
source (W2
3
=“1”)
F = ORCLK
G
When using the f(X
CIN
) as timer 2 count source (W2
3
=“0”)
F = f(X
CIN
)
[LC: 0 to 15]
The frame frequency and frame period for each display
method can be obtained by the following formula:
Frame frequency =
(Hz)
Frame period =
(s)
F: LCD clock frequency
1/n: Duty
Fig. 24 LCD clock control circuit structure
Used COM pins
COM
0
, COM
1
(Note)
COM
0
–COM
2
(Note)
COM
0
–COM
3
Maximum number of displayed pixels
40 segments
60 segments
1
16
1
LC + 1
1
2
1
16
1
LC + 1
1
2
F
n
n
F
Note: Count source is stopped by clearing to “0.”
STCK
1/2
Timer LC
1/16
W3
0
0
1
(Note)
X
CIN
ORCLK
W2
3
0
1
W3
1
1
0
LCD clock
相關PDF資料 |
PDF描述 |
|---|---|
| M34551E8 | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| M34551M4 | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER |
| M34551M8 | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER |
| M34570EDFP | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34570M8-117FP | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M34551E8 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:4-BIT SINGLE-CHIP MICROCOMPUTER |
| M34551E8-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER |
| M34551M4 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:4-BIT SINGLE-CHIP MICROCOMPUTER |
| M34551M4-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER |
| M34551M8 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:4-BIT SINGLE-CHIP MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復。