- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69010 > M34280M1-XXXGP 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 PDF資料下載
參數(shù)資料
| 型號： | M34280M1-XXXGP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| 封裝： | 0.225 INCH, 0.65 MM PITCH, PLASTIC, SSOP-20 |
| 文件頁數(shù)： | 13/48頁 |
| 文件大小： | 605K |
| 代理商： | M34280M1-XXXGP |
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頁當前第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頁第43頁第44頁第45頁第46頁第47頁第48頁
17
MITSUBISHI MICROCOMPUTERS
4280 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
(1) Internal state at reset
Table 6 shows port state at reset, and Figure 19 shows internal
state at reset (they are retained after system is released from
reset).
The contents of timers, registers, flags and RAM except shown
in Figure 19 are undefined, so set the initial value to them.
Program counter (PC) ..............................................................
Address 0 in page 0 is set to program counter.
Power down flag (P) .................................................................
Timer 1 underflow flag (T1F) ...................................................
Timer control register V1 ..........................................................
Carrier wave selection register C ............................................
Pull-down control register PU0 ................................................
Logic operation selection register LO ......................................
Most significant ROM code reference enable flag (URS)
Carry flag (CY) .........................................................................
Register A .................................................................................
Register B .................................................................................
Stack pointer (SP) ....................................................................
000
00
000
00
0
000
111
000
00
0
111
1
111
1
11
Fig. 19 Internal state at reset
Table 6 Port state at reset
Name
D0–D6
D7
G0–G3, E2
E0, E1
State at reset
“H” output
Input port (Pull-down transistor ON)
Input circuit OFF (Pull-down transistor OFF)
State after system is released from reset
High impedance state
Input circuit OFF (Pull-down transistor OFF)
Input port (Pull-down transistor ON)
Input port (Pull-down transistor OFF)
Note: The contents of all output latch is initialized to “0.”
VOLTAGE DROP DETECTION CIRCUIT
The built-in drop detection circuit is designed to detect a drop in
voltage at operating and to reset the microcomputer if the supply
voltage drops below the specified value (Typ. 1.50 V) or less.
Fig. 20 Voltage drop detection circuit operation waveform
VDD
Reset voltage
Internal reset signal
Microcomputer starts operation
after f(XIN) is counted to 16384 times.
The voltage drop detection circuit is stopped and power
dissipation is reduced at the RAM back-up mode, when the
functions except the RAM and pull-down control register (PU0)
are initialized.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M34280E1GP | 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| M34501M2-XXXFP | 4-BIT, MROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| M34501E4FP | 4-BIT, OTPROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| M34501M2-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO20 |
| M34501E4FP | 4-BIT, OTPROM, MICROCONTROLLER, PDSO20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M3428-100 | 制造商:MANHATTEN 功能描述:24AWG COMPUTER CABLE |
| M34282 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34282E2 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34282E2GP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34282M1 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。