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4501 Datasheet(PDF) 56 Page - Renesas Technology Corp

Part # 4501
Description  SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
PDF  116 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

4501 Datasheet(HTML) 56 Page - Renesas Technology Corp

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Rev.3.01
2005.02.07
page 56 of 112
REJ03B0104-0301
4501 Group
PU03
PU02
PU01
PU00
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Port P03 pull-up transistor
control bit
Port P02 pull-up transistor
control bit
Port P01 pull-up transistor
control bit
Port P00 pull-up transistor
control bit
Pull-up control register PU0
at reset : 00002
at RAM back-up : state retained
0
1
0
1
0
1
0
1
W
PU13
PU12
PU11
PU10
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Port P13/INT pull-up transistor
control bit
Port P12/CNTR pull-up transistor
control bit
Port P11 pull-up transistor
control bit
Port P10 pull-up transistor
control bit
Pull-up control register PU1
at reset : 00002
at RAM back-up : state retained
0
1
0
1
0
1
0
1
W
PU23
PU22
PU21
PU20
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Pull-up transistor OFF
Pull-up transistor ON
Port D3/K pull-up transistor
control bit
Port D2/C pull-up transistor
control bit
Port P21/AIN1 pull-up transistor
control bit
Port P20/AIN0 pull-up transistor
control bit
Pull-up control register PU2
at reset : 00002
at RAM back-up : state retained
0
1
0
1
0
1
0
1
W
Notes 1: “R” represents read enabled, and “W” represents write enabled.



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