UPD72012 Ver la hoja de datos (PDF) - NEC => Renesas Technology
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UPD72012 Datasheet PDF : 36 Pages
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AC Characteristics (VDD = 3.3 V +0.3 V, TA = 0 to +70°C)
(1) Full-speed output driver characteristics
Parameter
Symbol
Conditions
Output rise time (FS)
Output fall time (FS)
tFR, tFF
UD0, UD1
CL = 50 pF, TA = 25°C,
10% to 90%
Crossover output voltage
VCRS
Driver output resistance
Full-speed data rate
ZDRV
tFDRATE
12Mbps ±0.25%
Differential driver jitter (FS)
tDJ1
Continuous transition
tDJ2
Pair transition
Source jitter on SE0 transition from tFDEOP
differential transition (FS)
Receiver jitter (FS)
tJR1
Continuous transition
tJR2
Pair transition
One-way propagation delay
tFPROP
EOP source SE0 interval
tFEOPT
EOP receiver SE0 interval
tFEOPR
Accept as effective EOP.
SE0 time interval on differential
tFST
transition
(2) HUB repeater characteristics (Full-speed)
Parameter
Symbol
Conditions
Output rise time (LS)
Output fall time (LS)
tr, tf
D10 to D50, D11 to D51
CL = 50 pF, TA = 25°C,
10% to 90%
Differential data delay (LS)
tHDD1
With cable
tHDD2
Without cable
Differential driver jitter (LS)
tHDJ1
Continuous transition
tHDJ2
Pair transition
Data bit length distortion after SOP tFSOP
(LS)
HUB EOP delay for tHDD1
tFEOPD
EOP output width skew (LS)
tFHESK
µPD72012
MIN.
TYP.
MAX.
Unit
4
20
ns
1.3
28
11.97
–2
160
82
2.0
44
12.03
±3.5
±4.0
+5
V
Ω
Mbps
ns
ns
ns
±18.5
ns
±9
ns
26
ns
175
ns
ns
14
ns
MIN.
TYP.
MAX.
Unit
4
20
ns
70
ns
44
ns
±3
ns
±1
ns
+5
ns
0
15
ns
±15
ns
Data Sheet S13918EJ3V0DS
25
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