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參數(shù)資料
| 型號(hào)： | 74F579SC |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-Bit Bidirectional Binary Counter with 3-STATE Outputs |
| 中文描述： | F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 8-BIT BIDIRECTIONAL BINARY COUNTER, PDSO20 |
| 封裝： | 0.300 INCH, MS-013, SOIC-20 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 112K |
| 代理商： | 74F579SC |
Philips Semiconductors
Product specification
74F579
8-bit bidirectional binary counter (3-State)
1992 May 04
7
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
= +25
°
C
V
= +5.0V
C
L
= 50pF, R
L
= 500
MIN
TYP
T
amb
= 0
°
C to +70
°
C
V
= +5.0V
±
10%
C
L
= 50pF, R
L
= 500
MIN
UNIT
MAX
MAX
f
MAX
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Maximum clock frequency
Waveform 1
100
115
80
MHz
Propagation delay
CP to I/O
n
Propagation delay
CP to TC
Waveform 1
5.0
5.0
7.5
7.5
10.5
10.5
4.5
5.0
11.5
11.5
ns
ns
Waveform 1
5.5
5.5
7.5
7.5
10.0
10.0
5.0
5.0
11.0
11.0
ns
ns
Propagation delay
U/D to TC
Waveform 4
3.5
4.5
5.5
6.5
8.0
8.0
3.5
4.5
9.0
9.0
ns
ns
Propagation delay
CET to TC
Waveform 3
3.5
3.5
5.5
6.0
7.0
8.0
3.5
3.5
8.5
8.5
ns
ns
t
PHL
Propagation delay
MR to I/O
n
Propagation delay
MR to TC
Waveform 2
5.0
7.0
9.0
5.0
10.0
ns
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PZH
t
PZL
t
PHZ
t
PLZ
Waveform 4
4.0
6.0
6.5
8.0
9.0
10.5
4.0
6.0
10.5
12.5
ns
ns
Output Enable time
CS to I/O
n
Output Disable time
CS to I/O
n
Output Enable time
PE to I/O
n
Output Disable time
PE to I/O
n
Output Disable time
OE to I/O
n
Output Enable time
OE to I/O
n
Waveform 6
Waveform 7
4.0
5.5
5.0
7.0
8.5
10.5
3.5
5.0
10.0
11.5
ns
ns
Waveform 6
Waveform 7
3.0
5.0
5.0
7.5
7.5
9.5
3.0
4.5
9.0
11.0
ns
ns
Waveform 6
Waveform 7
3.0
5.0
4.5
6.5
8.0
10.0
3.0
4.5
9.0
11.0
ns
ns
Waveform 6
Waveform 7
3.0
2.5
4.0
4.0
7.5
7.5
3.0
2.0
9.0
8.5
ns
ns
Waveform 6
Waveform 7
2.5
4.5
4.0
5.5
7.0
9.0
2.5
4.0
8.5
10.5
ns
ns
Waveform 6
Waveform 7
1.0
2.0
2.5
4.0
4.0
7.0
1.0
2.0
5.5
8.0
ns
ns
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