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參數(shù)資料
| 型號： | ST7554 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | V.90 USB WORLD MODEM CONTROLLER |
| 中文描述： | .90 USB世界調(diào)制解調(diào)器控制器 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大小： | 148K |
| 代理商： | ST7554 |
UNIVERSAL SERIAL BUS INTERFACE
(see Chapter 7 of USB rev 1.0 for complete Electrical Specification)
Nominal DC Characteristics
(D+, D-)
Symbol
V
DI
Differential Input Sensitivity [(D+) - (D-)]
V
CM
Differential Common Mode Range
V
SE
Single Ended Receiver Threshold
V
OH
V
OL
Low Level Output Static Voltage (RL of 1.5k
to 3.6V)
I
LO
Hi-Z State Data Line Leakage Current (0V < V
IN
< 3.3V)
C
IN
Transceiver Capacitance (Pin to GND)
R
D
(2)
Driver Output Resistance (steady state drive)
Parameter
Min.
0.2
0.8
0.8
2.8
Typ.
Max.
Unit
V
V
V
V
V
μ
A
pF
2.5
2
3.6
0.3
±
10
20
TBD
High Level Output Static Voltage (RL of 15k
to GND)
TBD
Note 2 :
Excludes external resistor. In order to comply with USB Specifications 1.0, external series resistors of 27
±
1% each on D+ and D-
are recommended
AC Characteristics
(D+, D-) (see Figure 5 for test scheme)
Symbol
t
DR
Average bit rate (12 M/s
±
0.05%)
t
R
Rise Time between 10% and 90% (see Figure 6)
t
F
Fall Time 10% and 90% (see Figure 6)
V
CRS
Output Signal Crossover Voltage
Parameter
Min.
11.97
4
4
1.3
Typ.
Max.
12.03
20
20
2
Unit
Mbps
ns
ns
V
1
2
15k
W
50pF
15k
W
50pF
Test
1.5k
W
V
REGD
27
W
Test
D+
D-
27
W
7
Figure 5 :
Test Scheme for D+/D-
t
R
t
F
90%
10%
90%
10%
7
Figure 6 :
Rise and Fall Time Measures
ST7554
7/11
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST7554TQF7 | 制造商:STMicroelectronics 功能描述:V.90 USB WORLD MODEM CONTROLLER - Bulk |
| ST7556 | 制造商:SITRONIX 制造商全稱:SITRONIX 功能描述:65 x 102 Dot Matrix LCD Controller/Driver |
| ST7558 | 制造商:SITRONIX 制造商全稱:SITRONIX 功能描述:65 x 102 Dot Matrix LCD Controller/Driver |
| ST755C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ADJUSTABLE INVERTING NEGATIVE OUTPUT CURRENT MODE PWM REGULATORS |
| ST755CD | 功能描述:電流型 PWM 控制器 Adjust Sw Mode DC-DC RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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