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UPD16686 Datasheet(PDF) 21 Page - Renesas Technology Corp

Part # UPD16686
Description  MOS INTERGRATED CIRCUIT
PDF  102 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

UPD16686 Datasheet(HTML) 21 Page - Renesas Technology Corp

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Data Sheet S15548JJ1V0DS
19
µµµµPD16686, 16687
2. PIN I/O CIRCUITS AND RECOMMENDED CONNECTION OF UNUSED PINS
The I/O circuit type of each pin and recommended connection of unused pins are described below.
Pin Name
Input Type
I/O
Recommended Connection of Unused Pins
Notes
PSX
Schmitt trigger
Input
Mode setting pin
Note 1
/CS1
Filter
Input
Connect to VSS
−−−−
CS2
Filter
Input
Connect to VDD1
−−−−
/RD(E)
Filter
Input
Connect to VDD1 (i80 series interface), connect to VDD1 or
VSS (serial interface)
−−−−
/WR(R,/W)
Filter
Input
Connect to VDD1 or VSS (serial interface)
−−−−
C86
Schmitt trigger
Input
Mode setting pin
Note 1
D0 to D5
Filter
I/O
Leave open
−−−−
D6(SCL)
Filter
I/O
−−−−−−−−
D7(SI)
Filter
I/O
−−−−−−−−
RS
Filter
Input
Register setting pin
Note 2
TESTOUT
−−−−
Output
Leave open
−−−−
/RES
Schmitt trigger
Input
Connect to VDD1
−−−−
CLS
Schmitt trigger
Input
Mode setting pin
Note 1
IRS
Schmitt trigger
Input
Mode setting pin
Note 1
SIGIN1
Schmitt trigger
Input
Connect to VDD1 or VSS
−−−−
SIGIN2
Schmitt trigger
Input
Connect to VDD1 or VSS
−−−−
OSCIN1
CMOS
Input
−−−−−−−−
OSCIN2
CMOS
Input
Connect to VDD1 or VSS (CLS = H)
−−−−
OSCOUT
−−−−
Output
Leave open (when using external clock)
−−−−
TFR
CMOS
Output
Leave open
−−−−
TFRSYNC
CMOS
Output
Leave open
−−−−
TDOF
CMOS
Output
Leave open
−−−−
TSISYNC
CMOS
Output
Leave open
−−−−
TM,S
Schmitt trigger
Input
Connect to VDD1
−−−−
TOSCSYNC
−−−−
Output
Leave open
−−−−
TSTIFS
Schmitt trigger
Input
Connect to VSS (during normal use)
−−−−
TSTRTST
Schmitt trigger
Input
Connect to VSS (during normal use)
−−−−
TSTVIHL
Schmitt trigger
Input
Connect to VSS (during normal use)
−−−−
Notes 1. Connect to either VDD1 or VSS, depending on the mode setting.
2. Input either VDD1 or VSS output from CPU, depending on the mode setting.



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