參數(shù)資料
型號(hào): MC74F243N
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
中文描述: F/FAST SERIES, 4-BIT TRANSCEIVER, TRUE OUTPUT, PDIP14
封裝: 646-06
文件頁數(shù): 2/5頁
文件大?。?/td> 121K
代理商: MC74F243N
4-188
FAST AND LS TTL DATA
MC54/74F242
MC54/74F243
FUNCTION TABLE – MC54/74F242
Inputs
Inputs
OE1
L
D
Output
OE2
L
D
Output
L
H
X
Z
L
H
L
L
X
Z
H
X
Z
H
L
H
H
X
Z
H
H
L
FUNCTION TABLE – MC54/74F243
Inputs
Inputs
OE1
L
D
Output
OE2
L
D
Output
L
L
X
Z
L
H
H
L
X
Z
H
X
Z
H
L
L
H
X
Z
H
H
H
H = HIGH Voltage Level; L = LOW Voltage Level ; X = Don’t Care; Z = HIGH Impedance
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
VIL
VIK
Input HIGH voltage
2.0
V
Guaranteed Input HIGH Voltage
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage
Input Clamp Diode Voltage
–1.2
V
IIN = –18 mA
VCC = MIN
54
2.0
V
IOH = –12 mA
IOH = –15 mA
VCC = 4.50 V
VCC = 4.50 V
VOH
Output HIGH Voltage
74
2.0
V
54, 74
2.4
V
IOH = –3.0 mA
IOH = –3.0 mA
VCC = 4.50 V
VCC = 4.75 V
74
2.7
V
VOL
Output LOW Voltage
54
0.55
V
IOL = 48 mA
IOL = 64 mA
VOUT = 2.7 V
VCC = MIN
74
0.55
V
IOZH
Output Off Current HIGH
70
μ
A
VCC = MAX
1.0
mA
VOUT = 5.5 V
VOUT = 0.5 V
IOZL
Output Off Current LOW
–1.6
mA
VCC = MAX
Enable
20
μ
A
VIN = 2.7 V
VIN = 2.7 V
IIH
Input HIGH Current
Data
70
μ
A
VCC = MAX
Data
1.0
mA
VIN = 5.5 V
VIN = 7.0 V
VIN = 0.5 V
Enable
0.1
mA
IIL
Input LOW Current
Enable
-1.0
mA
VCC = MAX
Data
-1.6
mA
VIN = 0.5 V
VOUT = 0 V
IOS
Output Short Circuit Current
74
–100
–225
mA
VCC = MAX
(Note 2)
54
–100
–275
mA
ICCH
Power Supply
F242
60
mA
Outputs
VCC = MAX
Current HIGH
F243
80
mA
HIGH
ICCL
Power Supply
F242
75
mA
Outputs
VCC = MAX
Current LOW
F243
90
mA
LOW
ICCZ
Power Supply
F242
75
mA
Outputs
VCC = MAX
Current OFF
F243
90
mA
OFF
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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