DM74LS670CW データシートの表示（PDF） - Fairchild Semiconductor
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DM74LS670CW Datasheet PDF : 6 Pages
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Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Typ
Min
Max
(Note 8)
Units
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
−1.5
V
VOH
HIGH Level
Output Voltage
VCC = Min, IOH = Max
VIL = Max, VIH = Min
2.4
3.4
V
VOL
LOW Level
Output Voltage
VCC = Min, IOL = Max
IOL = Max, VIH = Min
0.34
0.5
V
II
Input Current @ Max
VCC = Max
D, R or W
0.1
Input Voltage
VI = 7V
GW
0.2
mA
GR
0.3
IIH
HIGH Level
VCC = Max
D, R or W
20
Input Current
VI = 2.7V
GW
40
µA
GR
60
IIL
LOW Level
VCC = Max
D, R or W
−0.4
Input Current
VI = 0.4V
GW
−0.8
mA
GR
−1.2
IOZH
Off-State Output Current with
VCC = Max, VO = 2.7V
HIGH Level Output Voltage Applied VIH = Min, VIL = Max
20
µA
IOZL
Off-State Output Current with
VCC = Max, VO = 0.4V
LOW Level Output Voltage Applied VIH = Min, VIL = Max
−20
µA
IOS
Short Circuit Output Current
VCC = Max (Note 9)
−20
−100
mA
ICC
Supply Current
VCC = Max (Note 10)
30
50
mA
Note 8: All typicals are at VCC = 5V, TA = 25°C.
Note 9: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 10: ICC is measured with 4.5V applied to all DATA inputs and both ENABLE inputs, all ADDRESS inputs are grounded and all outputs are OPEN.
Switching Characteristics
at VCC = 5V and TA = 25°C
Symbol
Parameter
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
tPZH
Output Enable Time
to HIGH Level Output
tPZL
Output Enable Time
to LOW Level Output
tPHZ
Output Disable Time from
HIGH Level Output (Note 11)
tPLZ
Output Disable Time from
LOW Level Output (Note 11)
Note 11: CL = 5 pF.
From (Input)
To (Output)
Read Select to Q
Read Select to Q
Write Enable to Q
Write Enable to Q
Data to Q
Data to Q
Read Enable to Any Q
Read Enable to Any Q
Read Enable to Any Q
Read Enable to Any Q
RL = 667Ω
CL = 45 pF
CL = 150 pF
Min
Max
Min
Max
40
50
45
55
45
55
50
60
45
55
40
50
35
45
40
50
50
35
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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