參數(shù)資料
型號: PEF2080
廠商: SIEMENS AG
英文描述: S/T Bus Interface Circuit(SBC)
中文描述: S / T的總線接口電路(SBC)的
文件頁數(shù): 55/74頁
文件大小: 2620K
代理商: PEF2080
Semiconductor Group
56
Electrical Characteristics
Notes:
1) Due to the transformer, the load resistance as seen by the circuit is four times
R
L
.
2) The required 20
output impedance is realised by external components.
3) The 80
output impedance is required as external resistor.
DC Characteristics
T
A
= 0 to 70 C;
V
DD
= 5 V ± 5 %,
V
SS
= 0 V
Parameter
Symbol
Limit Values
Unit
Test Condition
min.
max.
L-input voltage
V
IL
V
IH
– 0.4
0.8
V
DD
+ 0.4
V
H-input voltage
2.0
V
L-output voltage
L-output voltage (SDO)
V
OL
V
OL1
V
OH
V
OH
0.45
0.45
V
V
I
OL
= 2 mA
I
OL
= 7 mA
I
OH
= – 400
μ
A
I
OH
= – 100
μ
A
H-output voltage
H-output voltage
2.4
V
DD
– 0.5
V
V
Power supply current operational
I
CC
13
mA
PEB 2080;
V
DD
= 5 V
inputs at
V
SS
/
V
DD
no output loads
PEF 2080;
V
DD
= 5 V
inputs at
V
SS
/
V
DD
no output loads
0 V <
V
IN
<
V
DD
to 0 V
power down
1
mA
Power supply current operational
I
CC
15
mA
power down
1.3
mA
Input leakage current
Output leakage current
I
LI
I
LO
V
X
10
μ
A
0 V <
V
IN
<
V
DD
to 0 V
R
L
= 50
1) 2)
R
L
= 400
1) 2)
R
L
= 5.6
1)
inactive or during
binary one
Absolute value of output pulse
amplitude (VSX2 - VSX1)
2.03
2.10
2.31
2.39
V
V
Transmitter output current
I
X
R
X
7.5
13.4
mA
k
Transmitter output
impedance
10
80
during binary zero
3)
R
L
= 50
I
O
< 5
μ
A
dependent on peak
level
Receiver output voltage
V
SR1
V
TR
2.35
2.6
V
Receiver threshold voltage
VSR1 - VSR2
225
375
mV
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