74ACT258 Quad 2-Input Multiplexer with 3-STATE Outputs
©1988 Fairchild Semiconductor Corporation www.fairchildsemi.com
74ACT258 Rev. 1.4 4
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.
Symbol Parameter Rating
V
CC
Supply Voltage –0.5V to +7.0V
I
IK
DC Input Diode Current
V
I
=
–0.5V
V
I
=
V
CC
+ 0.5V
–20mA
+20mA
V
I
DC Input Voltage –0.5V to V
CC
+ 0.5V
I
OK
DC Output Diode Current
V
O
=
–0.5V
V
O
=
V
CC
+ 0.5V
–20mA
+20mA
V
O
DC Output Voltage –0.5V to V
CC
+ 0.5V
I
O
DC Output Source or Sink Current ±50mA
I
CC
or I
GND
DC V
CC
or Ground Current per Output Pin ±50mA
T
STG
Storage Temperature –65°C to +150°C
T
J
Junction Temperature 140°C
Symbol Parameter Rating
V
CC
Supply Voltage 4.5V to 5.5V
V
I
Input Voltage 0V to V
CC
V
O
Output Voltage 0V to V
CC
T
A
Operating Temperature –40°C to +85°C
V
/
t Minimum Input Edge Rate:
V
IN
from 0.8V to 2.0V, V
CC
@ 4.5V, 5.5V
125mV/ns
74ACT258 Quad 2-Input Multiplexer with 3-STATE Outputs
©1988 Fairchild Semiconductor Corporation www.fairchildsemi.com
74ACT258 Rev. 1.4 5
DC Electrical Characteristics
Notes:
1. All outputs loaded; thresholds on input associated with output under test.
2. Maximum test duration 2.0ms, one output loaded at a time.
Symbol Parameter
V
CC
(V) Conditions
T
A
=
+25°C T
A
=
–40°C to +85°C
UnitsTyp. Guaranteed Limits
V
IH
Minimum HIGH Level
Input Voltage
4.5 V
OUT
=
0.1V or
V
CC
– 0.1V
1.5 2.0 2.0 V
5.5 1.5 2.0 2.0
V
IL
Maximum LOW Level
Input Voltage
4.5 V
OUT
=
0.1V or
V
CC
– 0.1V
1.5 0.8 0.8 V
5.5 1.5 0.8 0.8
V
OH
Minimum HIGH Level
Output Voltage
4.5 I
OUT
=
–50µA 4.49 4.4 4.4 V
5.5 5.49 5.4 5.4
V
IN
=
V
IL
or V
IH
:
4.5 I
OH
=
–24mA 3.86 3.76
5.5 I
OH
=
–24mA
(1)
4.86 4.76
V
OL
Maximum LOW Level
Output Voltage
4.5 I
OUT
=
50µA 0.001 0.1 0.1 V
5.5 0.001 0.1 0.1
V
IN
=
V
IL
or V
IH
:
4.5 I
OL
=
24mA 0.36 0.44
5.5 I
OL
= 24mA
(1)
0.36 0.44
I
IN
Maximum Input
Leakage Current
5.5 V
I
= V
CC
, GND ±0.1 ±1.0 µA
I
OZ
Maximum 3-STATE
Current
5.5 V
I
= V
IL
, V
IH
;
V
O
= V
CC
, GND
±0.25 ±2.5 µA
I
CCT
Maximum I
CC
/Input 5.5 V
I
= V
CC
– 2.1V 0.6 1.5 mA
I
OLD
Minimum Dynamic
Output Current
(2)
5.5 V
OLD
= 1.65V Max. 75 mA
I
OHD
5.5 V
OHD
= 3.85V Min. –75 mA
I
CC
Maximum Quiescent
Supply Current
5.5 V
IN
= V
CC
or GND 4.0 40.0 µA
74ACT258 Quad 2-Input Multiplexer with 3-STATE Outputs
©1988 Fairchild Semiconductor Corporation www.fairchildsemi.com
74ACT258 Rev. 1.4 6
AC Electrical Characteristics
Notes:
3. Voltage range 5.0 is 5.0V ± 0.5V.
Capacitance
Symbol Parameter V
CC
(V)
(3)
T
A
= +25°C,
C
L
= 50pF
T
A
= –40°C to +85°C,
C
L
= 50pF
UnitsMin. Typ. Max. Min. Max.
t
PLH
Propagation Delay, I
n
to Z
n
5.0 2.0 6.5 8.5 1.5 9.5 ns
t
PHL
Propagation Delay, I
n
to Z
n
5.0 2.0 5.5 7.5 1.5 8.0 ns
t
PLH
Propagation Delay, S to Z
n
5.0 3.0 7.5 10.5 2.0 11.5 ns
t
PHL
Propagation Delay, S to Z
n
5.0 1.5 7.0 9.5 1.5 11.0 ns
t
PZH
Output Enable Time 5.0 2.0 6.5 8.5 1.5 9.5 ns
t
PZL
Output Enable Time 5.0 2.0 6.5 8.5 1.5 9.5 ns
t
PHZ
Output Disable Time 5.0 1.5 7.0 9.0 1.0 10.0 ns
t
PLZ
Output Disable Time 5.0 2.0 6.0 8.0 1.5 9.0 ns
Symbol Parameter Conditions Typ. Units
C
IN
Input Capacitance V
CC
= OPEN 4.5 pF
C
PD
Power Dissipation Capacitance V
CC
= 5.0V 55.0 pF

74ACT258SCX

Mfr. #:
Manufacturer:
ON Semiconductor / Fairchild
Description:
Encoders, Decoders, Multiplexers & Demultiplexers Qd 2-Inp Multiplexer
Lifecycle:
New from this manufacturer.
Delivery:
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