參數(shù)資料
型號(hào): SDA9255
廠商: SIEMENS AG
英文描述: SRC-Scan Rate Converter SDA9255
中文描述: 鋼骨混凝土掃描頻率轉(zhuǎn)換器SDA9255
文件頁數(shù): 35/45頁
文件大?。?/td> 225K
代理商: SDA9255
SDA 9255
Semiconductor Group
33
1998-02-01
3.1
Recommended Operating Conditions
Parameter
Symbol
Limit Values
nom.
5
25
Unit
Remark
min.
4.75
0
max.
5.25
70
Supply voltages
Ambient temperature
T
A
All TTL Inputs
H-input voltage
L-input voltage
All TTL Outputs
H-output voltage
L-output voltage
INPUT/OUTPUT: SDA
L-output voltage
Clock TTL Input LL2CLK
Clock frequency
Low time
High time
Rise time
Fall time
I
2
C Bus (All values are referred to min (
V
IH
) and max (
V
IL
)),
f
SCL
= 400 KHz
H-input voltage
V
IH
3
L-input voltage
V
IL
0
SCL clock frequency
f
SCL
0
Inactive time before
start of transmission
Set-up time start
condition
Hold time start
condition
SCL low time
t
LOW
1.3
SCL high time
t
HIGH
0.6
Set-up time DATA
t
SU; DAT
100
Hold time DATA
t
HD; DAT
0
V
DD
V
°C
V
IH
V
IL
2.0
0
V
DD
0.8
V
V
V
QH
V
QL
2.4
V
V
I
QH
= -2.0 mA
I
QL
= 3.0 mA
0.4
V
QL
0.5
V
at
I
QL
= max
1/T
t
WL
t
WH
t
TLH
t
THL
27
MHz
ns
ns
ns
ns
see
figure 19
12
12
5
5
V
DD
1.5
400
V
V
kHz
μ
s
see
figure 17
see
figure 18
t
BUF
1.3
t
SU; STA
0.6
μ
s
t
HD; STA
0.6
μ
s
μ
s
μ
s
ns
μ
s
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