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ST72681/R21 数据表(PDF) 23 Page - STMicroelectronics

部件名 ST72681/R21
功能描述  USB 2.0 high-speed Flash drive controller
PDF  32 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST72681/R21 数据表(HTML) 23 Page - STMicroelectronics

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ST72681
Electrical characteristics
23/32
Figure 9.
Typical RPU vs. VDD33 with VIN=VSS
Figure 10.
Two typical Applications with unused I/O Pin
7.7.2
Output driving current
Subject to general operating conditions for VDD33, fOSC, and TA unless otherwise specified.
I/Os pullup resistance
30
35
40
45
50
55
60
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
Vdd (V)
10k
Ω
UNUSED I/O PORT
Device
10k
Ω
UNUSED I/O PORT
Device
VDD33
10k
Ω
UNUSED I/O PORT
Device
Table 21.
Output driving current
Symbol
Parameter
Conditions
Min.
Max.
Unit
VOL
(1)
1.
The IIO current sunk must always respect the absolute maximum rating specified in Section 7.2.2: Current
characteristics and the sum of IIO (I/O ports and control pins) must not exceed IVSS.
Output low level voltage for a D2 I/O pin when 8
pins are sunk at same time (see Figure 11)
IIO = 2 mA
300
mV
Output low level voltage for a D4 I/O pin when 8
pins are sunk at same time (see Figure 12)
IIO = 4 mA
400
Output low level voltage for a D8 I/O pin when 8
pins are sunk at same time (see Figure 13 )
IIO = 8 mA
500
VDD33-
VOH
(2)
2.
The IIO current sourced must always respect the absolute maximum rating specified in Section 7.2.2:
Current characteristics and the sum of IIO (I/O ports and control pins) must not exceed IVDD33. True open
drain I/O pins do not have VOH.
Output high level voltage for a D2 I/O pin when 8
pins are sourced at same time (see Figure 14)
IIO = 2 mA
600
mV
Output high level voltage for a D4 I/O pin when 8
pins are sourced at same time (see Figure 15 )
IIO = 4 mA
600
Output high level voltage for a D8 I/O pin when 8
pins are sourced at same time (see Figure 16)
IIO = 8 mA
600



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