參數(shù)資料
型號(hào)： CDP1855D
廠商： INTERSIL CORP
元件分類： 數(shù)字信號(hào)處理外設(shè)
英文描述： 8-Bit Programmable Multiply/Divide Unit
中文描述： 8-BIT, DSP-MULTIPLIER, CDIP28
封裝： HERMETIC SEALED, SIDE BRAZED, CERAMIC, DIP-28
文件頁(yè)數(shù)： 13/15頁(yè)
文件大?。?/td> 85K
代理商： CDP1855D
4-59
Dynamic Electrical Specifications
At T
A
= -40 to +85
o
C, V
DD
±
5%, t
R
, t
F
= 20ns, V
IH
= 0.7V
DD
, V
IL
= 0.3V
DD
,
C
L
= 100pF (See Figure 8)
(NOTE 1)
PARAMETER
V
DD
(V)
LIMITS
UNITS
CDP1855
CDP1855C
MIN
(NOTE 2)
TYP
MAX
MIN
(NOTE 2)
TYP
MAX
WRITE CYCLE
Minimum Clear Pulse Width
t
CLR
5
-
50
75
-
50
75
ns
10
-
25
40
-
-
-
ns
Minimum Write Pulse Width
t
WW
5
-
150
225
-
150
225
ns
10
-
75
115
-
-
-
ns
Minimum Data-In-Setup
t
DSU
5
-
-75
0
-
-75
0
ns
10
-
-40
0
-
-
-
ns
Minimum Data-In-Hold
t
DH
5
-
50
75
-
50
75
ns
10
-
25
40
-
-
-
ns
Minimum Address to Write
Setup
t
ASU
5
-
50
75
-
50
75
ns
10
-
25
40
-
-
-
ns
Minimum Address after
Write Hold
t
AH
5
-
50
75
-
50
75
ns
10
-
25
40
-
-
-
ns
NOTES:
1. Maximum limits of minimum characteristics are the values above which all devices function.
2. Typical values are for T
A
= 25
o
C and nominal voltages.
Dynamic Electrical Specifications
At T
A
= -40 to +85
o
C, V
DD
±
5%, t
R
, t
F
= 20ns, V
IH
= 0.7V
DD
, V
IL
= 0.3V
DD
,
C
L
= 100pF (See Figure 9)
(NOTE 1)
PARAMETER
V
DD
(V)
LIMITS
UNITS
CDP1855
CDP1855C
MIN
(NOTE 2)
TYP
MAX
MIN
(NOTE 2)
TYP
MAX
READ CYCLE
CE to Data Out Active
t
CDO
5
-
200
300
-
200
300
ns
10
-
100
150
-
-
-
ns
CE to Data Access
t
CA
5
-
300
450
-
300
450
ns
10
-
150
225
-
-
-
ns
Address to Data Access
t
AA
5
-
300
450
-
300
450
ns
10
-
150
225
-
-
-
ns
Data Out Hold after CE
t
DOH
5
50
150
225
50
150
225
ns
10
25
75
115
-
-
-
ns
Data Out Hold after Read
t
DOH
5
50
150
225
50
150
225
ns
10
25
75
115
-
-
-
ns
Read to Data Out Active
t
RDO
5
-
200
300
-
200
300
ns
10
-
100
150
-
-
-
ns
Read to Data Access
t
RA
5
-
200
300
-
200
300
ns
10
-
100
150
-
-
-
ns
CDP1855, CDP1855C
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