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參數資料
| 型號： | MC74F640N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL BUS TRANSCEIVER, INVERTING WITH 3-STATE OUTPUTS |
| 中文描述： | F/FAST SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP20 |
| 封裝： | 738-03 |
| 文件頁數： | 3/4頁 |
| 文件大小： | 84K |
| 代理商： | MC74F640N |
4-239
FAST AND LS TTL DATA
MC74F640
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
TA
IOH
IOH
IOL
IOL
DC Supply Voltage
74
4.5
5.0
5.5
V
Operating Ambient Temperature Range
74
0
25
70
°
C
Output Current — High
An Outputs
Bn Outputs
An Outputs
Bn Outputs
74
–3.0
mA
Output Current — High
74
–15
mA
Output Current — Low
74
24
mA
Output Current — Low
74
64
mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions1
Min
Typ
Max
VIH
VIL
VIK
Input HIGH Voltage
2.0
V
Guaranteed as a HIGH Signal
Input LOW Voltage
0.8
V
Guaranteed as a LOW Signal
Input Clamp Diode Voltage
–1.2
V
VCC = MIN, IIN = –18 mA
IOH = –3.0 mA
IOH = –3.0 mA
IOH = –3.0 mA
IOH = –3.0 mA
VOH
Output HIGH Voltage
An
74
2.4
3.3
V
VCC = 4.5 V
VCC = 4.75 V
VCC = 4.5 V
VCC = 4.75 V
74
2.7
3.3
V
Bn
74
2.4
3.4
V
74
2.7
3.4
V
74
2.0
V
IOH = –15 mA
IOL = 24 mA
IOL = 64 mA
VCC = MAX
VCC = MAX
VCC = MAX, VIN = 2.7 V
VCC = 0 V, VIN = 7.0 V
VCC = MAX, VIN = 5.5 V
VCC = MAX, VIN = 0.5 V
VCC = 4.5 V
VCC = MIN
VCC = MIN
VOUT = 2.7 V
VOUT = 0.5 V
VOL
VOL
IOZH + IIH
IOZL + IIL
Output LOW Voltage
An
Bn
74
0.35
0.5
V
Output LOW Voltage
74
0.55
V
Output Off Current HIGH
70
μ
A
Output Off Current LOW
–70
μ
A
IIH
Input HIGH Current
OE, T/R
40
μ
A
OE, T/R
100
μ
A
Others
1.0
mA
IIL
Input LOW Current
OE, T/R
–40
μ
A
IOS
Output Short Circuit Current2
A0–A7
B0–B7
–60
–150
mA
VCC = MAX, VOUT = GND
–100
–225
ICC
Power Supply Current
ICCH
85
mA
Vout = HIGH
T/R = 4.5 V
VCC = MAX
ICCL
120
Vout = LOW
T/R = 0 V
ICCZ
100
OE = 4.5 V
Vout = HIGH Z
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
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