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7545 Datasheet(PDF) 39 Page - Renesas Technology Corp

Part # 7545
Description  SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PDF  62 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7545 Datasheet(HTML) 39 Page - Renesas Technology Corp

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Rev.1.06
Mar 07, 2008
Page 39 of 59
REJ03B0140-0106
7545 Group
Fig. 43 Block diagram of system clock generating circuit (for ceramic resonator)
S
R
Q
S
R
Q
1/2
XIN
R
S
Q
Interrupt request
Interrupt disable flag I
Reset
STP instruction
Timing
φ
(Internal clock)
Prescaler 1
Timer 1
Rf
STP instruction
WIT
instruction
1/2
1/4
Reset
Although a feed-back resistor exists on-chip, an external feed-back resistor
may be needed depending on conditions.
Note:
XOUT



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