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參數(shù)資料
| 型號(hào)： | SN54HC161WR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 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, FP-16 |
| 文件頁數(shù)： | 12/14頁 |
| 文件大?。?/td> | 202K |
| 代理商： | SN54HC161WR |
SN54HC161, SN74HC161
4-BIT SYNCHRONOUS BINARY COUNTERS
SCLS297A – JANUARY 1996 – REVISED MAY 1997
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
6 V
5.9
5.999
5.9
V
IOH = –4 mA
4.5 V
3.98
4.3
3.7
3.84
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
6 V
0.001
0.1
V
IOL = 4 mA
4.5 V
0.17
0.26
0.4
0.33
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
0
6
0
4.2
0
5
fclock
Clock frequency
4.5 V
0
31
0
21
0
25
MHz
6 V
0
36
0
25
0
29
2 V
80
120
100
CLK high or low
4.5 V
16
24
20
t
Pulse duration
6 V
14
20
17
ns
tw
Pulse duration
2 V
80
120
100
ns
CLR low
4.5 V
16
24
20
6 V
14
20
17
↑
2 V
150
225
190
↑
A, B, C, or D
4.5 V
30
45
38
↑
6 V
26
38
32
↑
2 V
135
205
170
↑
LOAD low
4.5 V
27
41
34
t
Setup time before CLK
↑
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
6 V
29
43
37
2 V
125
190
155
CLR inactive
4.5 V
25
38
31
6 V
21
32
26
↑
2 V
0
th
Hold time, all synchronous inputs after CLK
↑
4.5 V
0
ns
6 V
0
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