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參數(shù)資料
| 型號(hào)： | MC74AC640N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE OUTPUTS |
| 中文描述： | AC SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁數(shù)： | 5/6頁 |
| 文件大小： | 174K |
| 代理商： | MC74AC640N |
MC74AC640 MC74ACT640
5-5
FACT DATA
AC CHARACTERISTICS
(For Figures and Waveforms — See Section 3)
Symbol
Parameter
(V)
74ACT
74ACT
Unit
No.
VCC*
TA = +25
°
C
CL = 50 pF
TA = –40
°
C
to +85
°
C
CL = 50 pF
Fig.
Min
Typ
Max
Min
Max
tPLH
Propagation Delay
An to Bn or Bn to An
Propagation Delay
An to Bn or Bn to An
Output Enable Time
5.0
1.5
1.5
1.0
8.5
ns
3-5
tPHL
5.0
1.5
8.0
1.0
9.0
ns
3-5
tPZH
tPZL
tPHZ
tPLZ
5.0
1.5
10.0
1.0
11.0
ns
3-7
Output Enable Time
5.0
1.5
10.0
1.0
11.0
ns
3-8
Output Disable Time
5.0
1.5
10.0
1.0
11.0
ns
3-7
Output Disable Time
5.0
1.5
10.0
1.0
11.0
ns
3-8
* Voltage Range 5.0 V is 5.0 V
±
0.5 V.
CAPACITANCE
Symbol
Parameter
Value
Typ
Unit
Test Conditions
CIN
Input Capacitance
4.5
pF
VCC = 5.0 V
CI/O
Input/Output Capacitance
15
pF
VCC = 5.0 V
CPD
Power Dissipation Capacitance
45
pF
VCC = 5.0 V
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