7641 datasheet(82/138 Pages) RENESAS

Il numero della parte	7641

Spiegazioni elettronici	SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

PDF	138 Pages

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Produttore elettronici	RENESAS [Renesas Technology Corp]

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82 / 138 page

7641 Group

Rev.4.00

Aug 28, 2006

page 82 of 135

REJ03B0191-0400

Notes 1: The total peak output current is the peak value of the peak currents flowing through all the applicable ports. The total average output current is the average

value measured over 100 ms flowing through all the applicable ports.

2: The peak output current is the peak current flowing in each port.

3: The average output current is an average value measured over 100 ms.

4: The duty of oscillation frequency is 50

5: Connect a ceramic resonator or a quartz-crystal oscillator between the XIN and XOUT pins. Its maximum oscillation frequency must be 24 MHz. However,

make sure to set

φ to 12 MHz or slower. More faster clocks are required as the f(XIN) when using the frequency synthesizer as possible.

6: Connect a ceramic resonator or a quartz-crystal oscillator between the XCIN and XCOUT pins. Its maximum oscillation frequency must be 50 kHz. Input an

external clock having 5 MHz frequency (max.) from the XCIN pin.

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