參數(shù)資料
型號: SDA9257
廠商: SIEMENS A G
元件分類: 消費家電
英文描述: Clock Sync Generator
中文描述: SPECIALTY CONSUMER CIRCUIT, PDIP28
文件頁數(shù): 21/36頁
文件大?。?/td> 1304K
代理商: SDA9257
SDA 9257
Semiconductor Group
202
Fall time
(acknowledge)
t
F
0.3
μ
s
from 3 to 1 V
SDA upon
acknowledge
V
AL
0
0.4
V
I
AL
= 3 mA
CKE Input
L-input voltage
V
IL
V
IH
C
I
0
0.8
V
DD
10
V
H-input voltage
2
V
Input capacitance
pF
μ
A
Input leakage current
I
I
Input frequency
7
V
I
= 5.5 V
f
CKE
t
R
,
t
F
35
MHZ
Transition times
5
ns
Crystal Connections X1, X2
Crystal frequency
f
c
20.44
20.50
20.56
MHZ
Overall tolerance incl.
temperature drift
Crystal type
Equivalent parallel
C
Crystal resonant
impedance
Fundamental crystal
C
O
Z
R
7
pF
25
Pin capacitance
C
I
C
ext
7
pF
External capacitance
30
pF
VS, HS, H1, H2, BLN, I1 and RES Outputs
L-output voltage
V
QL
V
QH
C
L
t
R
,
t
F
t
QD
t
QH
0
0.4
V
DD
50
V
I
= 1.6 mA
I
= – 0.5 mA
H-output voltage
2.4
V
Load capacitance
pF
Transition times
5
ns
C
L
= 30 pF
Output delay time
25
ns
Output hold time
6
ns
Characteristics
(cont’d)
T
A
= 25
°
C (all voltages are referred to
V
SS
)
Parameter
Symbol
Limit Values
Unit
Test Condition
min.
typ.
max.
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