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參數資料
| 型號： | MC74F242N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Supply Voltage Supervisor w/Watchdog input, RESET, /RESET 5-SOT-23 -40 to 85 |
| 中文描述： | F/FAST SERIES, 4-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP14 |
| 封裝： | 646-06 |
| 文件頁數： | 3/5頁 |
| 文件大小： | 121K |
| 代理商： | MC74F242N |
4-189
FAST AND LS TTL DATA
MC54/74F242
MC54/74F243
AC CHARACTERISTICS – MC54/74F242
54/74F
54F
74F
TA = +25
°
C
VCC = +5.0 V
CL = 50 pF
Min
TA = -55
°
C to +125
°
C
VCC = 5.0 V
±
10%
CL = 50 pF
Min
TA = 0
°
C to 70
°
C
VCC = 5.0 V
±
10%
CL = 50 pF
Min
Symbol
Parameter
Max
Max
Max
Unit
tPLH
tPHL
Propagation Delay,
2.5
7.0
2.5
9.0
2.5
8.0
ns
Data to Output
1.5
4.7
1.5
6.0
1.5
5.7
tPZH
tPZL
Output Enable Time
2.0
4.7
2.0
6.5
2.0
5.7
ns
4.0
9.0
4.0
12
4.0
10
tPHZ
tPLZ
Output Disable Time
2.0
5.3
2.0
6.5
2.0
6.3
ns
1.5
6.5
1.5
12.5
1.5
8.0
AC CHARACTERISTICS – MC54/74F243
54/74F
54F
74F
TA = +25
°
C
VCC = +5.0 V
CL = 50 pF
Min
TA = -55
°
C to +125
°
C
VCC = 5.0 V
±
10%
CL = 50 pF
Min
TA = 0
°
C to 70
°
C
VCC = 5.0 V
±
10%
CL = 50 pF
Min
Symbol
Parameter
Max
Max
Max
Unit
tPLH
tPHL
Propagation Delay,
2.5
5.2
2.0
6.5
2.0
6.2
ns
Data to Output
2.5
5.2
2.0
8.5
2.0
6.5
tPZH
tPZL
tPHZ
Output Enable Time
2.0
5.7
2.0
8.0
2.0
6.7
ns
2.0
7.5
2.0
10.5
2.0
8.5
Output Disable Time
2.0
6.0
1.5
7.5
1.5
7.0
ns
tPLZ
1.5
6.5
2.0
12.5
1.5
7.5
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