參數(shù)資料
型號: CD54HC670F3A
廠商: Texas Instruments, Inc.
元件分類: 通用總線功能
英文描述: High-Speed CMOS Logic 4x4 Register File
中文描述: 高速CMOS邏輯4 × 4寄存器文件
文件頁數(shù): 5/14頁
文件大?。?/td> 284K
代理商: CD54HC670F3A
5
Prerequisite for Switching Specifications
PARAMETER
SYMBOL
V
CC
(V)
25
o
C
-40
o
C TO 85
o
C
-55
o
C TO 125
o
C
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
HC TYPES
Setup Time
Data to WE
Write to WE
t
SU
, t
h
2
60
-
-
75
-
-
90
-
-
ns
4.5
12
-
-
15
-
-
18
-
-
ns
6
10
-
-
13
-
-
15
-
-
ns
Hold Time
Data to WE
Write to WE
t
H
, t
W
2
5
-
-
5
-
-
5
-
-
ns
4.5
5
-
-
5
-
-
5
-
-
ns
6
5
-
-
5
-
-
5
-
-
ns
Pulse Width WE
t
W
2
80
-
-
100
-
-
120
-
-
ns
4.5
16
-
-
20
-
-
24
-
-
ns
6
14
-
-
17
-
-
20
-
-
ns
Latch Time WE to RA0,
RA1
t
LATCH
2
100
-
-
125
-
-
150
-
-
ns
4.5
20
-
-
25
-
-
30
-
-
ns
6
17
-
-
21
-
-
26
-
-
ns
HCT TYPES
Setup Time
Data to WE
t
SU
, t
h
4.5
12
-
-
15
-
-
18
-
-
ns
Hold Time
Data to WE
Write to WE
t
H
, t
W
4.5
5
-
-
5
-
-
5
-
-
ns
Setup Time
Write to WE
t
SU
4.5
18
-
-
23
-
-
27
-
-
ns
Pulse Width WE
t
W
4.5
20
-
-
25
-
-
30
-
-
ns
Latch Time WE to RA0,
RA1
t
LATCH
4.5
25
-
-
31
-
-
38
-
-
ns
Switching Specifications
C
L
= 50pF, Input t
r
, t
f
= 6ns
PARAMETER
SYMBOL
TEST
CONDITIONS
V
CC
(V)
25
o
C
-40
o
C TO
85
o
C
-55
o
C TO
125
o
C
UNITS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
HC TYPES
Propagation Delay
Reading Any Word
t
PLH
, t
PHL
C
L
= 50pF
2
-
-
195
-
245
-
295
ns
4.5
-
-
39
-
49
-
59
ns
C
L
= 15pF
5
-
16
-
-
-
-
-
ns
C
L
= 50pF
6
-
-
33
-
42
-
50
ns
Write Enable to Output
t
PLH
, t
PHL
C
L
= 50pF
2
-
-
250
-
315
-
375
ns
4.5
-
-
50
-
63
-
75
ns
C
L
= 15pF
5
-
21
-
-
-
-
-
ns
C
L
= 50pF
6
-
-
43
-
54
-
64
ns
CD54HC670, CD74HC670, CD74HCT670
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