UPD72012 Ver la hoja de datos (PDF) - NEC => Renesas Technology
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UPD72012 Datasheet PDF : 36 Pages
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µPD72012
1. PIN FUNCTIONS
1.1 List of Pin Functions
Pin No.Note Pin Name
I/O
Signal Name
Function
(1/3)
1(6)
RST
I
RESET
Inputs reset signals.
2(7)
UD0
I/O Data0
Connects to upstream port #0 D+ signal line.
Pull up to 3.3 V line using 1.5 kΩ.
3(8)
UD1
I/O Data1
Connects to upstream port #0 D– signal line.
4(9)
D10
I/O Data0
Connects to downstream port #1 D+ signal line.
Pull down to GND using 15 kΩ.
5(10)
D11
I/O Data1
Connects to downstream port #1 D– signal line.
Pull down to GND using 15 kΩ.
6(11)
DGND
-
DGND
Connect to GND.
7(12)
D20
I/O Data0
Connects to downstream port #2 D+ signal line.
Pull down to GND using 15 kΩ.
8(13)
D21
I/O Data1
Connects to downstream port #2 D– signal line.
Pull down to GND using 15 kΩ.
9(14)
D30
I/O Data0
Connects to downstream port #3 D+ signal line.
Pull down to GND using 15 kΩ.
10(15) D31
I/O Data1
Connects to downstream port #3 D– signal line.
Pull down to GND using 15 kΩ.
11(16,
17)
DGND
-
DGND
Connect to GND.
This pin is used as both pins 16 and 17 internally in the QFP product.
12(18) D40
I/O Data0
Connects to downstream port #4 D+ signal line.
Pull down to GND using 15 kΩ.
13(19) D41
I/O Data1
Connects to downstream port #4 D– signal line.
Pull down to GND using 15 kΩ.
14(20) D50
I/O Data0
Connects to downstream port #5 D+ signal line.
Pull down to GND using 15 kΩ.
15(21) D51
I/O Data1
Connects to downstream port #5 D– signal line.
Pull down to GND using 15 kΩ.
16(22) DGND
-
DGND
(TS3)
Test pin of µPD72012 (corresponds to TS3 pin in µPD72011). Connect
to GND.
17(23) OSL
O OSC CTL
Pin that outputs high level on suspend. Can be used by LED switch or to
turn oscillator ON/OFF on suspend.
Note QFP pin numbers are shown in ( ).
CAUTION
For self-power, always input an oscillator output signal. If the clock
is cut-off, subsequent operation my not be possible.
Data Sheet S13918EJ3V0DS
7
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