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4559 bảng dữ liệu(PDF) 8 Page - Renesas Technology Corp

tên linh kiện 4559
Giải thích chi tiết về linh kiện  SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
PDF  148 Pages
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
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4559 bảng dữ liệu(HTML) 8 Page - Renesas Technology Corp

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Rev.1.04
Aug 23, 2007
Page 8 of 146
REJ03B0188-0104
4559 Group
CONNECTIONS OF UNUSED PINS
(Note when connecting to VSS or VDD)
Connect the unused pins to VSS using the thickest wire at the shortest distance against noise.
Table 7
Port function
Pin
Connection
Usage condition
XIN
Connect to VSS.
RC oscillator is not selected
XOUT
Open.
−
XCIN/D6
Connect to VSS.
−
XCOUT/D7
Open.
−
D0
−D4
Open.
−
Connect to VSS.
N-channel open-drain is selected for the output structure.
D5/INT
Open.
INT pin input is disabled.
Connect to VSS.
N-channel open-drain is selected for the output structure.
P00
/SEG16−
P03
/SEG19
Open.
The key-on wakeup function is invalid.
Connect to VSS.
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.
P10
/SEG20−
P13
/SEG23
Open.
The key-on wakeup function is invalid.
Connect to VSS.
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.
P20
/SEG24−
P23
/SEG27
Open.
The key-on wakeup function is invalid.
Connect to VSS.
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.
P30
/SEG28−
P33
/SEG31
Open.
The key-on wakeup function is invalid.
Connect to VSS.
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.
C/CNTR
Open.
CNTR input is not selected for timer 1 count source.
COM0–COM3
Open.
−
SEG0/VLC3
Open.
SEG0 pin is selected.
SEG1/VLC2
Open.
SEG1 pin is selected.
SEG2/VLC1
Open.
SEG2 pin is selected.
SEG3–SEG15
Open.
−



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