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參數(shù)資料
| 型號(hào)： | M34507E4FP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, OTPROM, MICROCONTROLLER, PDSO24 |
| 封裝： | 5.30 X 10.10 MM, 0.80 MM PITCH, PLASTIC, SSOP-24 |
| 文件頁(yè)數(shù)： | 171/216頁(yè) |
| 文件大?。?/td> | 3262K |
| 代理商： | M34507E4FP |
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1-46
Rev.2.01
Feb 04, 2005
4507 Group
HARDWARE
REJ09B0195-0201
Fig. 41 Switch to ceramic resonance/RC oscillation
Fig. 42 Handling of XIN and XOUT when operating on-chip oscillator
Fig. 43 Ceramic resonator external circuit
Fig. 44 External RC oscillation circuit
Execute the CMCK instruc-
tion in program.
Note: Externally connect a damping
resistor Rd depending on the
oscillation frequency.
(A feedback resistor is built-in.)
Use the resonator manu-
facturer’s recommended value
because constants such as ca-
pacitance depend on the
resonator.
(1) Selection of source oscillation (f(XIN))
The ceramic resonator or RC oscillation can be used for the source
oscillation of the MCU.
After system is released from reset, the MCU starts operation by
the clock output from the on-chip oscillator which is the internal os-
cillator.
When the ceramic resonator is used, execute the CMCK instruc-
tion. When the RC oscillation is used, execute the CRCK
instruction. The oscillation circuit by the CMCK or CRCK instruction
can be selected only at once. The oscillation circuit corresponding
to the first executed one of these two instructions is valid. Other os-
cillation circuit and the on-chip oscillator stop.
Execute the CMCK or the CRCK instruction in the initial setting rou-
tine of program (executing it in address 0 in page 0 is
recommended). Also, when the CMCK or the CRCK instruction is
not executed in program, the MCU operates by the on-chip oscilla-
tor.
(2) On-chip oscillator operation
When the MCU operates by the on-chip oscillator as the source os-
cillation (f(XIN)) without using the ceramic resonator or the RC
oscillator, connect XIN pin to VSS and leave XOUT pin open (Figure
42).
The clock frequency of the on-chip oscillator depends on the supply
voltage and the operation temperature range.
Be careful that variable frequencies when designing application
products.
(3) Ceramic resonator
When the ceramic resonator is used as the source oscillation
(f(XIN)), connect the ceramic resonator and the external circuit to
pins XIN and XOUT at the shortest distance. Then, execute the
CMCK instruction. A feedback resistor is built in between pins XIN
and XOUT (Figure 43).
(4) RC oscillation
When the RC oscillation is used as the source oscillation (f(XIN)),
connect the XIN pin to the external circuit of resistor R and the ca-
pacitor C at the shortest distance and leave XOUT pin open. Then,
execute the CRCK instruction (Figure 44).
The frequency is affected by a capacitor, a resistor and a micro-
computer. So, set the constants within the range of the frequency
limits.
*
Reset
On-chip oscillator
operation
CMCK instruction
CRCK instruction
Ceramic resonator valid
On-chip oscillator stop
RC oscillation stop
RC oscillation valid
On-chip oscillator stop
Ceramic resonator stop
4507
XIN
XOUT
*
Do not use the CMCK instruction
and CRCK instruction in program.
4507
XIN
XOUT
Rd
CIN
COUT
4507
XIN
XOUT
R
C
*
Execute the CRCK
instruction in program.
FUNCTION BLOCK OPERATIONS
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PDF描述 |
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| M34507M2-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34507M4-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34507M2-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34509G4FP | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34507M2-XXXFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES |
| M34507M4-XXXFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4FP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4GP | 制造商:RENESAS 制造商全稱(chēng):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(lèi)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(xiàn) 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(lèi)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(pán) |
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