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| 型號(hào)： | SNJ54HC161W |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 計(jì)數(shù)器 |
| 英文描述： | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDFP16 |
| 封裝： | CERAMIC, DFP-16 |
| 文件頁(yè)數(shù)： | 25/27頁(yè) |
| 文件大?。?/td> | 886K |
| 代理商： | SNJ54HC161W |
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SN54HC161, SN74HC161
4BIT SYNCHRONOUS BINARY COUNTERS
SCLS297D JANUARY 1996 REVISED SEPTEMBER 2003
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54HC161
SN74HC161
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
1.9
1.998
1.9
IOH = 20 A
4.5 V
4.4
4.499
4.4
VOH
VI = VIH or VIL
IOH = 20 A
6 V
5.9
5.999
5.9
V
VOH
VI = VIH or VIL
IOH = 4 mA
4.5 V
3.98
4.3
3.7
3.84
V
IOH = 5.2 mA
6 V
5.48
5.8
5.2
5.34
2 V
0.002
0.1
IOL = 20 A
4.5 V
0.001
0.1
VOL
VI = VIH or VIL
IOL = 20 A
6 V
0.001
0.1
V
VOL
VI = VIH or VIL
IOL = 4 mA
4.5 V
0.17
0.26
0.4
0.33
V
IOL = 5.2 mA
6 V
0.15
0.26
0.4
0.33
II
VI = VCC or 0
6 V
±0.1
±100
±1000
nA
ICC
VI = VCC or 0,
IO = 0
6 V
8
160
80
A
Ci
2 V to 6 V
3
10
pF
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
TA = 25°C
SN54HC161
SN74HC161
UNIT
VCC
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
6
4.2
5
fclock
Clock frequency
4.5 V
31
21
25
MHz
fclock
Clock frequency
6 V
36
25
29
MHz
2 V
80
120
100
CLK high or low
4.5 V
16
24
20
tw
Pulse duration
CLK high or low
6 V
14
20
17
ns
tw
Pulse duration
2 V
80
120
100
ns
CLR low
4.5 V
16
24
20
CLR low
6 V
14
20
17
2 V
150
225
190
A, B, C, or D
4.5 V
30
45
38
A, B, C, or D
6 V
26
38
32
2 V
135
205
170
LOAD low
4.5 V
27
41
34
tsu
Setup time before CLK
↑
LOAD low
6 V
23
35
29
ns
tsu
Setup time before CLK
↑
2 V
170
255
215
ns
ENP, ENT
4.5 V
34
51
43
ENP, ENT
6 V
29
43
37
2 V
125
190
155
CLR inactive
4.5 V
25
38
31
CLR inactive
6 V
21
32
26
2 V
0
th
Hold time, all synchronous inputs after CLK
↑
4.5 V
0
ns
th
Hold time, all synchronous inputs after CLK
6 V
0
ns
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