ChipFind - документация

Электронный компонент: SL74HCT241

Скачать:  PDF   ZIP
SL74HCT241
System Logic
Semiconductor
SLS
Octal 3-State Noninverting Buffer/Line
Driver/Line Receiver

High-Performance Silicon-Gate CMOS
The SL74HCT241 is identical in pinout to the LS/ALS241. The
SL74HCT241 may be used as a level converter for interfacing TTL or
NMOS outputs to High Speed CMOS inputs.
This octal noninverting buffer/line driver/line receiver is designed
to be used with 3-state memory address drivers, clock drivers, and
other bus-oriented systems. The device has noninverting outputs and
two output enables. Enable A is active-low and Enable B is active-high.
TTL/NMOS Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0
A
ORDERING INFORMATION
SL74HCT241N Plastic
SL74HCT241D SOIC
T
A
= -55
to 125
C for all packages
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
Output
Inputs
Output
Enable
A
A
YA
Enable
B
B
YB
L
L
L
H
L
L
L
H
H
H
H
H
H
X
Z
L
X
Z
X = don't care
Z = high impedance
LOGIC DIAGRAM
PIN 20=V
CC
PIN 10 = GND
SL74HCT241
System Logic
Semiconductor
SLS
MAXIMUM RATINGS
*
Symbol
Parameter
Value
Unit
V
CC
DC Supply Voltage (Referenced to GND)
-0.5 to +7.0
V
V
IN
DC Input Voltage (Referenced to GND)
-1.5 to V
CC
+1.5
V
V
OUT
DC Output Voltage (Referenced to GND)
-0.5 to V
CC
+0.5
V
I
IN
DC Input Current, per Pin
20
mA
I
OUT
DC Output Current, per Pin
35
mA
I
CC
DC Supply Current, V
CC
and GND Pins
75
mA
P
D
Power Dissipation in Still Air, Plastic DIP+
SOIC Package+
750
500
mW
Tstg
Storage Temperature
-65 to +150
C
T
L
Lead Temperature, 1 mm from Case for 10 Seconds
(Plastic DIP or SOIC Package)
260
C
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
+Derating - Plastic DIP: - 10 mW/
C from 65
to 125
C
SOIC Package: : - 7 mW/
C from 65
to 125
C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
V
CC
DC Supply Voltage (Referenced to GND)
4.5
5.5
V
V
IN
, V
OUT
DC Input Voltage, Output Voltage (Referenced to GND)
0
V
CC
V
T
A
Operating Temperature, All Package Types
-55
+125
C
t
r
, t
f
Input Rise and Fall Time (Figure 1)
0
500
ns


This device contains protection circuitry to guard against damage due to high static voltages or electric
fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated
voltages to this high-impedance circuit. For proper operation, V
IN
and V
OUT
should be constrained to the range
GND
(V
IN
or V
OUT
)
V
CC
.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V
CC
).
Unused outputs must be left open.
SL74HCT241
System Logic
Semiconductor
SLS
DC ELECTRICAL CHARACTERISTICS
(Voltages Referenced to GND)
V
CC
Guaranteed Limit
Symbol
Parameter
Test Conditions
V
25
C
to
-55
C
85
C
125
C
Unit
V
IH
Minimum High-
Level Input
Voltage
V
OUT
= V
CC
-0.1 V
I
OUT
20
A
4.5
5.5
2.0
2.0
2.0
2.0
2.0
2.0
V
V
IL
Maximum Low -
Level Input
Voltage
V
OUT
= 0.1 V
I
OUT
20
A
4.5
5.5
0.8
0.8
0.8
0.8
0.8
0.8
V
V
OH
Minimum High-
Level Output
Voltage
V
IN
= V
IH
I
OUT
20
A
4.5
5.5
4.4
5.4
4.4
5.4
4.4
5.4
V
V
IN
= V
IH
I
OUT
6.0 mA
4.5
3.98
3.84
3.7
V
OL
Maximum Low-
Level Output
Voltage
V
IN
= V
IL
I
OUT
20
A
4.5
5.5
0.1
0.1
0.1
0.1
0.1
0.1
V
V
IN
= V
IL
I
OUT
6.0 mA
4.5
0.26
0.33
0.4
I
IN
Maximum Input
Leakage Current
V
IN
=V
CC
or GND
5.5
0.1
1.0
1.0
A
I
OZ
Maximum three
State Leakage
Current
Output in High-Impedance State
V
IN
= V
IL
or V
IH
V
OUT
=V
CC
or GND
5.5
0.5
5.0
10.0
A
I
CC
Maximum
Quiescent Supply
Current
(per Package)
V
IN
=V
CC
or GND
I
OUT
=0
A
5.5
4.0
40
160
A
I
CC
Additional
Quiescent
V
IN
= 2.4 V, Any One Input
V
IN
=V
CC
or GND, Other Inputs
-55
C
25
C to
125
C
mA
Supply Current
I
OUT
=0
A
5.5
2.9
2.4
NOTE: Total Supply Current = I
CC
+
I
CC
SL74HCT241
System Logic
Semiconductor
SLS
AC ELECTRICAL CHARACTERISTICS
(V
CC
=5.0 V
10%, C
L
=50pF,Input t
r
=t
f
=6.0 ns)
Guaranteed Limit
Symbol
Parameter
25
C to
-55
C
85
C
125
C
Unit
t
PLH
, t
PHL
Maximum Propagation Delay, A to YA or B to YB
(Figures 1 and 3)
23
29
35
ns
t
PLZ
, t
PHZ
Maximum Propagation Delay, Output Enable to
YA or YB (Figures 2 and 4)
30
38
45
ns
t
PZH
, t
PZL
Maximum Propagation Delay, Output Enable to
YA or YB (Figures 2 and 4)
26
33
39
ns
t
TLH
, t
THL
Maximum Output Transition Time, Any Output
(Figures 1 and 3)
12
15
18
ns
C
IN
Maximum Input Capacitance
10
10
10
pF
C
OUT
Maximum Three-State Output Capacitance
(Output in High-Impedance State)
15
15
15
pF
Power Dissipation Capacitance (Per Enable
Output)
Typical @25
C,V
CC
=5.0 V
C
PD
Used to determine the no-load dynamic power
consump tion:
P
D
=C
PD
V
CC
2
f+I
CC
V
CC
55
pF

Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
SL74HCT241
System Logic
Semiconductor
SLS
Figure 3. Test Circuit
Figure 4. Test Circuit
EXPANDED LOGIC DIAGRAM
(1/4 of the Device)