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型號：	UPD703270GF-XXX-JBT
元件分類：	微控制器/微處理器
英文描述：	32-BIT, MROM, 20 MHz, RISC MICROCONTROLLER, PQFP100
封裝：	14 X 20 MM, PLASTIC, QFP-100
文件頁數：	1079/1080頁
文件大?。?/td>	6965K
代理商：	UPD703270GF-XXX-JBT

ELECTRICAL

SPECIFICATIONS

User’s Manual

U16541EJ4V0UD

Main Clock Oscillator Characteristics

40 to +85°C, BVDD ≤ VDD = EVDD = AVREF0 = AVREF1, VSS = EVSS = BVSS = AVSS = 0 V)

Circuit Example

frequency (fX)

After reset is

After STOP mode is

stabilization

After IDLE2 mode is

Notes 1. The oscillation frequency shown above indicates only oscillator characteristics. Use the V850ES/SG2 so

that the internal operation conditions do not exceed the ratings shown in AC Characteristics and DC

Characteristics.

2. Time required from start of oscillation until the resonator stabilizes.

3. The value varies depending on the setting of the OSTS register.

4. Time required to set up the flash memory (flash memory version only).

Secure the setup time using the

OSTS register.

Cautions 1. When using the main clock oscillator, wire as follows in the area enclosed by the broken lines in

the above figure to avoid an adverse effect from wiring capacitance.

Keep the wiring length as short as possible.

Do not cross the wiring with the other signal lines.

Do not route the wiring near a signal line through which a high fluctuating current flows.

Always make the ground point of the oscillator capacitor the same potential as VSS.

Do not ground the capacitor to a ground pattern through which a high current flows.

Do not fetch signals from the oscillator.

2. When the main clock is stopped and the device is operating on the subclock, wait until the

oscillation stabilization time has been secured by the program before switching back to the

main clock.

3. For the resonator selection and oscillator constant, customers are requested to either evaluate

the oscillation themselves or apply to the resonator manufacturer for evaluation.

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