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參數(shù)資料
| 型號： | M34508G4GP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| 封裝： | 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, SSOP-20 |
| 文件頁數(shù)： | 20/32頁 |
| 文件大?。?/td> | 1049K |
| 代理商： | M34508G4GP |
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4508 Group
Rev.1.03
2009.07.27
page 27 of 140
REJ03B0148-0103
Fig. 22 Timers structure (1)
1 - - - - - - - - - - - - - - 16
Watchdog timer (16)
INSTCK
Q
R
S
WDF1
WRST instruction
Q
R
S
WEF
DWDT instruction
+
WRST instruction
RESET signal
Q
T
D
R
RESET signal
Watchdog reset signal
(Note 4)
(Note 3)
(Note 2)
Division circuit
System clock (STCK)
Instruction clock
(INSTCK)
Multi-
plexer
(CRCK)
MR0
1
0
ORCLK
Reload register RPS (8)
Prescaler (8)
Register B
Register A
(TABPS)
(TPSAB)
PA0
MR3, MR2
01
00
10
11
(TPSAB)
On-chip oscillator
XIN
Ceramic resonance
RC oscillation
Internal clock
generating circuit
(divided by 3)
Divided by 2
Divided by 4
Divided by 8
(Note 1)
Data is set automatically from each reload
register when timer underflows
(auto-reload function).
Notes 1: When CRCK instruction is executed, RC oscillation is selected.
When CRCK instruction is not executed, ceramic resonance is selected.
2: Flag WDF1 is cleared to “0” and the next instruction is skipped when the WRST
instruction is executed while flag WDF1 = “1”.
The next instruction is not skipped even when the WRST instruction is executed
while flag WDF1 = “0”.
3: Flag WEF is cleared to “0” and watchdog timer reset does not occur when the
DWDT instruction and WRST instruction are executed continuously.
4: The WEF flag is set to “1” at system reset or RAM back-up mode.
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| M34508G4FP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| M34508G4-XXXGP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| M34509G4FP | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34508G4GP#U0 | 功能描述:MCU 2/5V 4096 QZROM PB-FREE 20-S RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:720/4500 標(biāo)準(zhǔn)包裝:300 系列:78K0R/Ix3 核心處理器:78K/0R 芯體尺寸:16-位 速度:40MHz 連通性:3 線 SIO，I²C，LIN，UART/USART 外圍設(shè)備:DMA，LVD，POR，PWM，WDT 輸入/輸出數(shù):27 程序存儲器容量:16KB（16K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:38-SSOP 包裝:托盤 |
| M34508G4GP(#UO) | 制造商:Renesas Electronics Corporation 功能描述: |
| M34508G4HFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4HGP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4H-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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