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參數資料
| 型號： | MC74F579DW |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-BIT BIDIRECTIONAL BINARY COUNTER (3-STATE) |
| 中文描述： | F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 8-BIT BIDIRECTIONAL BINARY COUNTER, PDSO20 |
| 封裝： | SOIC-20 |
| 文件頁數： | 3/4頁 |
| 文件大小： | 132K |
| 代理商： | MC74F579DW |
4-231
FAST AND LS TTL DATA
MC74F579
AC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
74F
74F
Unit
TA= +25
°
C
VCC= +5.0 V
CL= 50 pF
TA= 0
°
C to +70
°
C
VCC= +5.0 V
±
10%
CL= 50 pF
Min
Typ
Max
Min
Max
fMAX
tPLH
tPHL
Maximum Clock Frequency
Propagation Delay
CP to I/On
100
80
MHz
5.0
5.0
10.5
10.5
5.0
5.0
11.5
11.5
ns
tPLH
tPHL
Propagation Delay
CP to TC
4.5
5.5
10
10
4.5
5.0
11
11
ns
tPLH
tPHL
Propagation Delay
U/D to TC
3.5
4.5
8.0
8.0
3.5
4.5
9.0
9.0
ns
tPLH
tPHL
Propagation Delay
CET to TC
3.5
3.5
7.0
8.0
3.5
3.5
8.5
8.5
ns
tPHL
Propagation Delay
MR to I/On
5.0
10
5.0
11
ns
tPZH
tPZL
Output Enable Time to HIGH or
LOW Level CS, PE to I/On
4.5
6.5
10.5
10.5
4.5
6.0
11.5
11.5
ns
tPHZ
tPLZ
Output Disable Time to HIGH or
LOW Level CS, PE to I/On
3.0
4.0
7.5
9.5
3.0
4.0
9.0
11
ns
tPZH
tPZL
Output Enable Time to HIGH or
LOW Level OE to I/On
4.0
6.0
8.5
9.5
4.0
5.0
9.5
10.5
ns
tPHZ
tPLZ
Output Disable Time to HIGH or
LOW Level OE to I/On
1.0
2.5
6.0
7.0
1.0
2.5
6.5
8.0
ns
AC SETUP REQUIREMENTS
Symbol
Parameter
74F
74F
Unit
TA= +25
°
C
VCC= +5.0 V
CL= 50 pF
TA= 0
°
C to +70
°
C
VCC= +5.0 V
±
10%
CL= 50 pF
Min
Typ
Max
Min
Typ
Max
ts(H)
ts(L)
Setup Time, HIGH or LOW
I/On to CP
3.0
3.0
4.0
4.0
ns
th(H)
th(L)
Hold Time, HIGH or LOW
I/On to CP
1.0
1.0
1.0
1.0
ns
ts(H)
ts(L)
Setup Time, HIGH or LOW
PE, SR or CS to CP
9.5
9.5
10
10
ns
th(H)
th(L)
Hold Time, HIGH or LOW
PE, SR or CS to CP
0
0
0
0
ns
ts(H)
ts(L)
Setup Time, HIGH or LOW
CET, CEP to CP
5.0
9.0
5.5
10.5
ns
th(H)
th(L)
Hold Time, HIGH or LOW
CET, CEP to CP
0
0
0
0
ns
tw
tw(L)
trec
CP Pulse Width
4.5
6.0
ns
MR Pulse Width
3.5
4.5
ns
MR Recovery Time
4.0
4.5
ns
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