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參數(shù)資料
| 型號(hào)： | M34507M4-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| 封裝： | 5.30 X 10.10 MM, 0.80 MM PITCH, PLASTIC, SSOP-24 |
| 文件頁數(shù)： | 59/117頁 |
| 文件大?。?/td> | 937K |
| 代理商： | M34507M4-XXXFP |
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Rev.3.01
2005.02.04
page 44 of 111
REJ03B0107-0301
4507 Group
CLOCK CONTROL
The clock control circuit consists of the following circuits.
On-chip oscillator (internal oscillator)
Ceramic resonator
RC oscillation circuit
Multi-plexer (clock selection circuit)
Frequency divider
Internal clock generating circuit
Fig. 40 Clock control circuit structure
The system clock and the instruction clock are generated as the
source clock for operation by these circuits.
Figure 40 shows the structure of the clock control circuit.
The 4507 Group operates by the on-chip oscillator clock (f(RING))
which is the internal oscillator after system is released from reset.
Also, the ceramic resonator or the RC oscillation can be used for
the source oscillation (f(XIN)) of the 4507 Group. The CMCK in-
struction or CRCK instruction is executed to select the ceramic
resonator or RC oscillator, respectively.
MR3, MR2
00
01
10
11
Q S
QR
Q S
R
CRCK instruction
Q S
R
CMCK
instruction
Q S
R
RESET pin
XOUT
XIN
Key-on wakeup signal
Instruction clock
Counter
Wait time (Note 2)
control circuit
Program
start signal
RC oscillation circuit
Division circuit
divided by 8
divided by 4
divided by 2
Internal clock
generation circuit
(divided by 3)
Notes 1: System operates by the on-chip oscillator clock (f(RING)) until the CMCK or CRCK instruction
is executed after system is released from reset.
2: The wait time control circuit is used to generate the time required to stabilize the f(XIN) oscillation.
After the certain oscillation stabilizing wait time elapses, the program start signal is output.
This circuit operates when system is released from reset or returned from RAM back-up.
System clock
On-chip oscillator
(internal oscillator)
(Note 1)
Multiplexer
Ceramic resonator
circuit
EPOF instruction + POF2 instruction
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M34507M2-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34509G4FP | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24 |
| M34513M4-XXXFP | 4-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PQFP32 |
| M34514M6-XXXFP | 4-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PDSO42 |
| M34514M8-XXXFP | 4-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PDSO42 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34508G4FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4GP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| 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(chǔ)器容量:16KB（16K x 8） 程序存儲(chǔ)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 |
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