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参数资料
| 型号： | SN54HCT377WR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 锁存器 |
| 英文描述： | HCT SERIES, OCTAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, CDFP20 |
| 封装： | CERAMIC, FP-20 |
| 文件页数： | 5/7页 |
| 文件大小： | 120K |
| 代理商： | SN54HCT377WR |
SN54HCT377, SN74HCT377
OCTAL D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCLS067C – NOVEMBER 1988 – REVISED MAY 1997
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
TA = 25°C
SN54HCT377
SN74HCT377
UNIT
VCC
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
f lk
Clock frequency
4.5 V
0
25
0
17
0
20
MHz
fclock
Clock frequency
5.5 V
0
30
0
19
0
22
MHz
t
Pulse duration
CLK high or low
4.5 V
20
30
25
ns
tw
Pulse duration
CLK high or low
5.5 V
18
28
23
ns
↑
Data
4.5 V
12
18
15
t
Setup time before CLK
↑
Data
5.5 V
10
17
14
ns
tsu
Setup time before CLK
↑
CLKEN high or low
4.5 V
12
18
15
ns
CLKEN high or low
5.5 V
10
17
14
↑
Data
4.5 V
3
th
Hold time data after CLK
↑
Data
5.5 V
3
ns
th
Hold time data after CLK
↑
CLKEN inactive or active
4.5 V
5
ns
CLKEN inactive or active
5.5 V
5
switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless
otherwise noted) (see Figure 1)
FROM
TO
SN54HCT377
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
TA = 25°C
MIN
MAX
UNIT
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
f
4.5 V
25
31
17
MHz
fmax
5.5 V
30
37
19
MHz
t d
CLK
Any
4.5 V
15
30
45
ns
tpd
CLK
Any
5.5 V
12
28
40
ns
tt
Any
4.5 V
8
15
22
ns
tt
Any
5.5 V
6
14
21
ns
switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless
otherwise noted) (see Figure 1)
FROM
TO
SN74HCT377
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
TA = 25°C
MIN
MAX
UNIT
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
f
4.5 V
25
31
20
MHz
fmax
5.5 V
30
37
22
MHz
t d
CLK
Any
4.5 V
15
30
38
ns
tpd
CLK
Any
5.5 V
12
28
35
ns
tt
Any
4.5 V
8
15
19
ns
tt
Any
5.5 V
6
14
17
ns
operating characteristics, TA = 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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