GL811E USB 2.0 to ATA/ATAPI Bridge Controller
6.3.2 I/O 16 Type digital pins (For pad type I/O 16 @ VCC=3.6V)
Table 6.4 - I/O 16 Type digital pins (For pad type I/O 16 @ VCC=3.6V)
Parameter
Current sink @ VOL = 0.4V
Min.
16.20
24.13
0.51
Typ.
21.90
29.46
0.93
Max.
27.68
34.80
1.35
Unit
mA
mA
V/ns
V/ns
V
Current output @ VOH = 2.4V (TTL high)
Falling slew rate at 30 pF loading capacitance
Rising slew rate at 30 pF loading capacitance
Input high threshold voltage
0.46
0.83
1.27
2.15
Input low threshold voltage
0.89
51K
V
Pad internal pull down resister
105K
152K
Ohms
6.3.3 D+/ D- (For pad type u20mia @ VCC=3.6V)
Table 6.5 - D+/ D- (For pad type u20mia @ VCC=3.6V)
Parameter
Min.
0
Typ.
Max.
0.3
Unit
V
D+/D- static output LOW (RL of 1.5K to VCC
)
D+/D- static output HIGH (RL of 15K to GND )
Differential input sensitivity
Single-ended receiver threshold
Transceiver capacitance
2.8
0.2
0.8
3.6
V
V
2.0
20
V
pF
Hi-Z state data line leakage
-10
28
+10
43
mA
Ohms
Driver output resistance
6.3.4 Switching Characteristics
Table 6.6 - Switching Characteristics
Parameter
Min.
Typ.
12
Max.
Unit
MHz
ns
X1 crystal frequency
11.97
12.03
X1 cycle time
83.3
D+/D- rise time with 50pF loading
D+/D- fall time with 50pF loading
4
4
20
20
ns
ns
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Page 16
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