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4553 датащи(PDF) 7 Page - Renesas Technology Corp

номер детали 4553
подробное описание детали  SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
PDF  145 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

4553 датащи(HTML) 7 Page - Renesas Technology Corp

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Rev.3.02
Dec 22, 2006
page 7 of 142
REJ03B0024-0302
4553 Group
CONNECTIONS OF UNUSED PINS
Connection
Connect to VSS.
Open.
Connect to VSS.
Open.
Open.
Connect to VSS.
Open.
Connect to VSS.
Open.
Open.
Connect to VSS.
Open.
Connect to Vss.
Open.
Connect to Vss.
Open.
Open.
Open.
Open.
Open.
Pin
XIN
XOUT
XCIN/D6
XCOUT/D7
D0–D4
D5/INT
C/CNTR
P00/SEG21–
P03/SEG24
P10/SEG25–
P13/SEG28
P20/SEG17–
P23/SEG20
COM0–COM3
SEG0/VLC3
SEG1/VLC2
SEG2/VLC1
SEG3–SEG16
Usage condition
RC oscillator is not selected
N-channel open-drain is selected for the output structure.
INT pin input is disabled.
N-channel open-drain is selected for the output structure.
CNTR input is not selected for timer 1 count source.
The key-on wakeup function is invalid.
Segment output is not selected.
N-channel open-drain is selected for the output structure.
Pull-up transistor is OFF.
The key-on wakeup function is invalid.
The key-on wakeup function is invalid.
Segment output is not selected.
N-channel open-drain is selected for the output structure.
Pull-up transistor is OFF.
The key-on wakeup function is invalid.
Segment output is not selected.
N-channel open-drain is selected for the output structure.
SEG0 pin is selected.
SEG1 pin is selected.
SEG2 pin is selected.
(Note when connecting to VSS and VDD)
q Connect the unused pins to VSS and VDD using the thickest wire at the shortest distance against noise.



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