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參數(shù)資料
| 型號： | 74F191 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Up/down binary counter with reset and ripple clock |
| 中文描述： | 上/下的復(fù)位和時(shí)鐘波紋二進(jìn)制計(jì)數(shù)器 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 104K |
| 代理商： | 74F191 |
Philips Semiconductors
Product specification
74F191
Up/Down binary counter with reset and ripple clock
1995 Jul 17
7
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
amb
= +25
°
C
V
CC
= +5.0V
C
L
= 50pF, R
L
= 500
Min
Typ
T
amb
= 0
°
C to +70
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF, R
L
= 500
Min
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
Max
Max
f
MAX
Maximum clock frequency
to Qn outputs
Waveform 1
100
125
90
MHz
f
MAX
Maximum clock frequency
to RC outputs
Waveform 1
85
95
75
MHz
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Propagation delay
CP to Q
n
Propagation delay
CP to TC
Waveform 1
2.5
5.0
4.5
7.5
8.0
11.5
2.0
5.0
8.5
12.0
ns
ns
Waveform 1
6.5
6.0
9.0
8.0
12.5
11.0
6.0
6.0
13.0
12.0
ns
ns
Propagation delay
CP to RC
Waveform 2
2.5
3.0
4.5
5.0
7.5
7.5
2.0
2.5
8.0
8.0
ns
ns
Propagation delay
CE to RC
Waveform 2
2.0
3.0
4.0
5.0
7.0
7.5
2.0
3.0
7.5
8.0
ns
ns
Propagation delay
U/D to RC
Waveform 2
8.0
4.5
11.0
7.5
16.0
10.5
8.0
4.0
17.0
11.0
ns
ns
Propagation delay
U/D to TC
Waveform 4
4.0
3.0
6.5
6.0
9.5
9.5
3.0
3.0
10.5
10.0
ns
ns
Propagation delay
D
n
to Q
n
Propagation delay
D
n
to TC
Propagation delay
D
n
to RC
Propagation delay
PL to Q
n
Propagation delay
PL to TC
Waveform 3
2.0
6.5
4.0
9.0
7.0
12.0
1.5
6.5
7.5
13.0
ns
ns
Waveform 3
Waveform 4
5.5
6.5
9.5
9.5
13.0
13.0
5.0
6.0
14.0
14.0
ns
ns
Waveform 3
Waveform 4
6.0
6.0
14.0
11.0
18.0
13.5
6.0
6.0
19.5
15.0
ns
ns
Waveform 5
4.5
5.5
6.5
8.0
9.5
11.5
4.0
5.0
10.5
12.0
ns
ns
Waveform 5
5.5
6.0
8.5
10.5
12.0
13.5
5.5
6.0
13.0
14.5
ns
ns
Propagation delay
PL to RC
Waveform 5
8.5
7.5
16.0
10.0
18.5
13.0
8.5
7.0
21.0
13.5
ns
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74F191 | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191SC | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191SJ | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191PC | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191 | Up/Down Binary Counter with Preset and Ripple Clock |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F191_07 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191DC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Synchronous Up/Down Counter |
| 74F191DCQB | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191DCX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191DMQB | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Up/Down Binary Counter with Preset and Ripple Clock |
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