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參數(shù)資料
| 型號： | SNJ54HCT377J |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL D-TYPE FLIP-FLOPS WITH CLOCK ENABLE |
| 中文描述： | 八路D型倒裝與時(shí)鐘使觸發(fā)器 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 273K |
| 代理商： | SNJ54HCT377J |
SN54HCT377, SN74HCT377
OCTAL D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCLS067D
–
NOVEMBER 1988
–
REVISED MARCH 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
TA = 25
°
C
MIN
SN54HCT377
MIN
SN74HCT377
MIN
UNIT
MAX
MAX
MAX
fl
fclock
Clock frequency
4.5 V
25
17
20
MHz
5.5 V
30
19
22
tw
Pulse duration
CLK high or low
4.5 V
20
30
25
ns
5.5 V
18
28
23
Data
4.5 V
12
18
15
tsu
Setup time before CLK
↑
5.5 V
10
17
14
ns
CLKEN high or low
4.5 V
12
18
15
5.5 V
10
17
14
Data
4.5 V
5.5 V
3
3
3
3
3
3
th
Hold time data after CLK
↑
ns
CLKEN inactive or active
4.5 V
5.5 V
5
5
5
5
5
5
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF (unless
otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
SN54HCT377
TA = 25
°
C
TYP
31
PARAMETER
(OUTPUT)
VCC
MIN
MAX
UNIT
MIN
25
MAX
fmax
4.5 V
17
MHz
5.5 V
30
37
19
td
tpd
CLK
Any
4.5 V
15
30
45
ns
5.5 V
12
28
40
tt
Any
4.5 V
5.5 V
8
6
15
14
22
21
ns
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF (unless
otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
SN74HCT377
TA = 25
°
C
TYP
31
PARAMETER
(OUTPUT)
VCC
MIN
MAX
UNIT
MIN
25
MAX
fmax
4.5 V
20
MHz
5.5 V
30
37
22
td
tpd
CLK
Any
4.5 V
15
30
38
ns
5.5 V
12
28
35
tt
Any
4.5 V
5.5 V
8
6
15
14
19
17
ns
operating characteristics, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load
30
pF
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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