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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)： | 4/6頁 |
| 文件大?。?/td> | 174K |
| 代理商： | MC74AC640N |
MC74AC640 MC74ACT640
5-4
FACT DATA
AC CHARACTERISTICS
(For Figures and Waveforms — See Section 3)
Symbol
Parameter
(V)
74AC
74AC
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
3.3
5.0
1.5
1.5
5.0
3.5
8.5
6.5
1.0
1.0
9.5
7.5
ns
3-5
tPHL
3.3
5.0
1.5
1.5
5.0
3.5
8.5
6.5
1.0
1.0
9.5
7.5
ns
3-5
tPZH
Output Enable Time
3.3
5.0
2.5
1.5
8.0
6.0
11.5
8.0
2.0
1.0
12.5
9.0
ns
3-7
tPZL
Output Enable Time
3.3
5.0
2.5
1.5
8.5
6.5
12.5
9.5
2.0
1.0
13.5
10.0
ns
3-8
tPHZ
Output Disable Time
3.3
5.0
2.0
1.5
8.0
6.0
12.0
9.0
1.0
1.0
12.5
10.0
ns
3-7
tPLZ
Output Disable Time
3.3
5.0
2.0
1.5
8.5
6.5
12.0
9.5
1.5
1.0
13.5
10.5
ns
3-8
* Voltage Range 3.3 V is 3.3 V
±
0.3 V.
Voltage Range 5.0 V is 5.0 V
±
0.5 V.
DC CHARACTERISTICS
Symbol
Parameter
(V)
74ACT
74ACT
Unit
Conditions
VCC
TA = +25
°
C
TA =
–40
°
C to +85
°
C
Typ
Guaranteed Limits
VIH
Minimum High Level
Input Voltage
4.5
5.5
1.5
1.5
2.0
2.0
2.0
2.0
V
VOUT = 0.1 V
or VCC – 0.1 V
VOUT = 0.1 V
or VCC – 0.1 V
IOUT = –50
μ
A
VIL
Maximum Low Level
Input Voltage
4.5
5.5
1.5
1.5
0.8
0.8
0.8
0.8
V
VOH
Minimum High Level
Output Voltage
4.5
5.5
4.49
5.49
4.4
5.4
4.4
5.4
V
*VIN = VIL or VIH
IOH
4.5
5.5
3.86
4.86
3.76
4.76
V
–24 mA
–24 mA
VOL
Maximum Low Level
Output Voltage
4.5
5.5
0.001
0.001
0.1
0.1
0.1
0.1
V
IOUT = 50
μ
A
*VIN = VIL or VIH
IOL
4.5
5.5
0.36
0.36
0.44
0.44
V
24 mA
24 mA
IIN
Maximum Input
Leakage Current
5.5
±
0.1
±
1.0
μ
A
VI = VCC, GND
ICCT
Additional Max. ICC/Input
5.5
0.6
1.5
mA
VI = VCC – 2.1 V
IOZT
Maximum
Current
VI (OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
VOLD = 1.65 V Max
3-State
5.5
±
0.6
±
6.0
μ
A
IOLD
Minimum Dynamic
Output Current
5.5
75
mA
IOHD
5.5
–75
mA
VOHD = 3.85 V Min
ICC
Maximum Quiescent
Supply Current
5.5
8.0
80
μ
A
VIN = VCC or GND
* All outputs loaded; thresholds on input associated with output under test.
Maximum test duration 2.0 ms, one output loaded at a time.
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