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UPSD3212A Datasheet, PDF (84/163 Pages) STMicroelectronics – Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
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uPSD3212A, uPSD3212C, uPSD3212CV
Table 78. Transceiver DC Characteristics
Symb
Parameter
Test Conditions(1)
VOH Static Output High
15kΩ ± 5% to GND(2,3)
VOL
Static Output Low
Notes 2, 3
VDI
Differential Input Sensitivity
|(D+) - (D-)|,
Figure 43., page 86
VCM Differential Input Common Mode
Figure 43., page 86
VSE
Single Ended Receiver Threshold
—
CIN
Transceiver Capacitance
—
IIO
Data Line (D+, D-) Leakage
0V < (D+,D-) < 3.3
RPU External Bus Pull-up Resistance, D-
7.5kΩ ± 2% to VCC
RPD External Bus Pull-down Resistance
Note: 1. VCC = 5V ± 10%; VSS = 0V; TA = 0 to 70°C.
2. Level guaranteed for range of VCC = 4.5V to 5.5V.
3. With RPU, external idle resistor, 7.5κ±2%, D- to VCC.
15kΩ ± 5%
Table 79. Transceiver AC Characteristics
Symb
Parameter
Test Conditions(1)
tDRATE Low Speed Data Rate
Ave. bit rate (1.5Mb/s ± 1.5%)
tDJR1 Receiver Data Jitter Tolerance
To next transition,
Figure 43., page 86(5)
tDJR2 Differential Input Sensitivity
For paired transition,
Figure 43., page 86(5)
tDEOP Differential to EOP Transition Skew Figure 44., page 87(5)
tEOPR1 EOP Width at Receiver
Rejects as EOP(5,6)
tEOPR2 EOP Width at Receiver
Accepts as EOP(5)
tEOPT Source EOP Width
—
tUDJ1 Differential Driver Jitter
To next transition,
Figure 45., page 87
tUDJ2 Differential Driver Jitter
To paired transition,
Figure 45., page 87
tR
USB Data Transition Rise Time
Notes 2, 3, 4
tF
USB Data Transition Fall Time
Notes 2, 3, 4
tRFM Rise/Fall Time Matching
tR / tF
VCRS Output Signal Crossover Volt age —
Note: 1. VCC = 5V ± 10%; VSS = 0V; TA = 0 to 70°C.
2. Level guaranteed for range of VCC = 4.5V to 5.5V.
3. With RPU, external idle resistor, 7.5κ±2%, D- to VCC.
4. CL of 50pF(75ns) to 350pF (300ns).
5. Measured at crossover point of differential data signals.
6. USB specification indicates 330ns.
Min
Max
Unit
2.8
3.6
V
—
0.3
V
0.2
—
V
0.8
2.5
V
0.8
2.0
V
—
20
pF
–10
10
µA
7.35
7.65
kΩ
14.25 15.75
kΩ
Min
1.4775
Max
1.5225
–75
75
Unit
Mbit/s
ns
–45
45
ns
–40
100
ns
165
—
ns
675
—
ns
–1.25
1.50
µs
–95
95
ns
–150
150
ns
75
300
ns
75
300
ns
80
120
%
1.3
2.0
V
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