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ST75C520 数据表(PDF) 7 Page - STMicroelectronics

部件名 ST75C520
功能描述  HIGH SPEED FAX MODEM DATA PUMP
PDF  45 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST75C520 数据表(HTML) 7 Page - STMicroelectronics

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III.2.2 - Digital Interface
All digital pins except XTAL Pins.
Symbol
Parameter
Min.
Typ.
Max.
Unit
VIL
Low Level Input Voltage
-0.3
0.8
V
VIH
High Level Input Voltage
2.2
V
II
Input Current VI =VDD or VI = GND
-10
0
+10
µA
VOH
High Level Output Voltage (Iload = 2mA)
2.4
V
VOL
Low Level Output Voltage (Iload = 2mA)
0.4
V
IOZ
Three State Input Leakage Current (GND < VO <VDD)
-50
0
50
µA
CIN
Input Capacitance
5
pF
Crystal oscillator interface (XTAL, EXTAL).
Symbol
Parameter
Min.
Typ.
Max.
Unit
VIL
Low Level Input Voltage
1.5
V
VIH
High Level Input Voltage
3.5
V
IL
Low Level Input Current GND < VI <VILmax
-15
µA
IH
High Level Input Current VIHmin < VI <VDD
15
µA
III.2.3 - Analog Interface
Symbol
Parameter
Min.
Typ.
Max.
Unit
VREF
Differential Reference Voltage Input = VREFP -VREFN
2.40
2.50
2.60
V
VCMOin
Input Common Mode Offset, v = (RXA1+RXA2)/2 - VCM
-300
300
mV
VDIFin
Differential Input Voltage RXA1 - RXA2
2 x VREF
VPP
VCMOout
Output Common Mode Voltage Offset = (TXA1+TXA2)/2 - VCM
-200
200
mV
VDIFout
Differential Output Voltage TXA1 - TXA2
2 x VREF
VPP
VOFFOut
Differential Output DC Offset (TXA1 - TXA2)
-100
100
mV
Rin
Input Resistance
RXAx
100
k
Ω
Rout
Output Resistance
TXAx
20
Ω
RL
Load Resistance
TXAx
10
k
Ω
CL
Load Capacitance
TXAx
50
pF
ST75C520
7/45



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