參數(shù)資料
型號(hào): AT43312A-SC
廠商: ATMEL CORP
元件分類: 總線控制器
英文描述: Self- and Bus-Bus-powered USB Hub Controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PDSO32
封裝: 0.440 INCH, PLASTIC, SOIC-32
文件頁(yè)數(shù): 14/28頁(yè)
文件大小: 211K
代理商: AT43312A-SC
14
AT43312A
1255G–USB–05/06
Note:
OSC2 must not be used to drive other circuitry.
Note:
With external 22
series resistor.
Figure 5.
Data Signal Rise and Fall Time
Table 7.
PWR, STAT, OVC
Symbol
Parameter
Condition
Min
Max
Unit
V
OL2
Output Low Level, PWR, STAT, OVC
I
OL
= 4 mA
0.5
V
V
OH2
Output High Level, PWR
I
OH
= 4 mA
0.5 V
CEXT
V
C
out
Output Capacitance
1 MHz
10
pF
V
IL3
Input Low Level
0.3 V
CEXT
V
V
IH3
Input High Level
0.7 V
CEXT
V
C
out
Output Capacitance
1 MHz
10
pF
Table 8.
Oscillator Signals: OSC1, OSC2
Symbol
Parameter
Condition
Min
Max
Unit
V
LH
OSC1 Switching Level
0.47
1.20
V
V
HL
OSC1 Switching Level
0.67
1.44
V
C
X1
Input Capacitance, OSC1
17
pF
C
X2
Output Capacitance, OSC2
17
pF
C
12
Osc1/2 Capacitance
1
pF
t
su
Start-up Time
6 MHz, fundamental
2
ms
D
L
Drive Level
V
CC
= 3.3V, 6 MHz crystal, 100
equiv. series resistor
150
μW
Table 9.
DPx, DMx Driver Characteristics, Full-speed Operation
Symbol
Parameter
Condition
Min
Max
Unit
t
R
Rise Time
C
L
= 50 pF
4
20
ns
t
F
Fall Time
C
L
= 50 pF
4
20
ns
t
RFM
TR/TF Matching
90
110
%
z
DRV
Driver Output Resistance
(Note:)
Steady state drive
28
44
V
CRS
RISE TIME
90%
FALL TIME
DIFFERENTIAL
DATA LINES
10%
90%
10%
t
R
t
F
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