- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370462 > HD404326 (Hitachi,Ltd.) 4-bit HMCS400-series microcomputer(4位單片微計(jì)算機(jī)) PDF資料下載
參數(shù)資料
| 型號： | HD404326 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 4-bit HMCS400-series microcomputer(4位單片微計(jì)算機(jī)) |
| 中文描述： | 4位HMCS400系列微電腦（4位單片微計(jì)算機(jī)） |
| 文件頁數(shù)： | 43/94頁 |
| 文件大小： | 573K |
| 代理商： | HD404326 |
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頁當(dāng)前第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頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁
HD404328 Series
43
3
2
1
0
Port mode register C (PMRC): $012
BUZZ output frequency selection
R1 /BUZZ pin mode selection
Pull-up MOS transistor on/off selection
3
2
1
0
LCD output register (LOR): $015
PMRC
Bit 3
PMRC
Bit 3
Port
Selection
Pull-Up MOS
On/Off Selection
0
1
Off
On
0
1
R1
BUZZ
3
R2/SEG1–SEG4 pin mode selection
R3/SEG5–SEG8 pin mode selection
R4/SEG9–SEG12 pin mode selection
R5/SEG13–SEG16 pin mode selection
LOR
Bit 3
0
1
Port
Selection
Port
Selection
Port
Selection
Port
Selection
LOR
Bit 2
0
1
LOR
Bit 1
0
1
LOR
Bit 0
0
1
R5
SEG13–SEG16
R4
SEG9–SEG12
R3
SEG5–SEG8
R2
SEG1–SEG4
Initial value: 0000, R/W: W
Initial value: 0000, R/W: W
Figure 24 I/O Switching Mode Registers (cont)
Pull-Up MOS Transistor Control:
A program-controlled pull-up MOS transistor is provided for each
input/output pin. The on/off status of all these transistors is controlled by bit 3 of port mode register C
(PMRC), and the on/off status of an individual transistor can also be controlled by the port data register of
the corresponding pin—enabling on/off control of that pin alone.
The on/off status of each transistor and the peripheral function mode of each pin can be set independently.
The configuration of the I/O buffer is shown in figure 25, and the configurations of various program-
controlled I/O circuits are given in table 23.
How to Deal with Unused I/O Pins:
I/O pins that are not needed by the user system (floating) must be
connected to V
CC
to prevent LSI malfunctions due to noise. These pins must either be pulled up to V
CC
by
their pull-up MOS transistors or by resistors of about 100 k
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD4074449 | 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī)) |
| HD404448 | 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī)) |
| HD404449 | 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī)) |
| HD4074459 | 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī)) |
| HD404458 | 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD404326FS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404326H | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404326S | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404326U | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404326UFS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。