74LV257D Просмотр технического описания (PDF) - Philips Electronics
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74LV257D Datasheet PDF : 12 Pages
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Philips Semiconductors
Quad 2-input multiplexer (3-State)
Product specification
74LV257
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
VCC DC supply voltage
VI
Input voltage
VO
Output voltage
Tamb Operating ambient temperature range in free air
tr, tf
Input rise and fall times
CONDITIONS
See Note 1
See DC and AC
characteristics
VCC = 1.0V to 2.0V
VCC = 2.0V to 2.7V
VCC = 2.7V to 3.6V
MIN
TYP
MAX
UNIT
1.0
3.3
3.6
V
0
–
VCC
V
0
–
VCC
V
–40
–40
+85
+125
°C
–
–
500
–
–
200
ns/V
–
–
100
NOTE:
1. The LV is guaranteed to function down to VCC = 1.0V (input levels GND or VCC); DC characteristics are guaranteed from VCC = 1.2V to VCC =3.6V.
ABSOLUTE MAXIMUM RATINGS1, 2
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0 V).
SYMBOL
PARAMETER
CONDITIONS
VCC
"IIK
"IOK
"IO
DC supply voltage
DC input diode current
DC output diode current
DC output source or sink current
– bus driver outputs
VI < –0.5 or VI > VCC + 0.5V
VO < –0.5 or VO > VCC + 0.5V
–0.5V < VO < VCC + 0.5V
RATING
–0.5 to +4.6
20
50
35
UNIT
V
mA
mA
mA
"IGND,
"ICC
DC VCC or GND current for types with
– bus driver outputs
70
mA
Tstg
Storage temperature range
–65 to +150
°C
Power dissipation per package
for temperature range: –40 to +125°C
PTOT
– plastic DIL
– plastic mini-pack (SO)
above +70°C derate linearly with 12 mW/K
750
above +70°C derate linearly with 8 mW/K
500
mW
– plastic shrink mini-pack (SSOP and TSSOP) above +60°C derate linearly with 5.5 mW/K
400
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1998 May 20
4
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