74LV241
Octal buffer/line driver; 3-state
Rev. 03 — 10 October 2005
Product data sheet
1. General description
The 74LV241 is a low-voltage, Si-gate CMOS device and is pin and function compatible
with 74HC241 and 74HCT241.
The 74LV241 is an octal non-inverting buffer/line driver with 3-state outputs. The 3-state
outputs are controlled by the output enable inputs (pins 1OE and 2OE).
2. Features
s
s
s
s
s
Optimized for low-voltage applications from 1.0 V to 3.6 V
Accepts TTL input levels between V
CC
= 2.7 V and V
CC
= 3.6 V
Typical V
OLP
(output ground bounce) < 0.8 V at V
CC
= 3.3 V and T
amb
= 25
°C
Typical V
OHV
(output V
OH
undershoot) > 2 V at V
CC
= 3.3 V and T
amb
= 25
°C
ESD protection:
x
HBM EIA/JESD22-A114-C exceeds 2000 V
x
MM EIA/JESD22-A115-A exceeds 200 V
3. Quick reference data
Table 1:
Quick reference data
GND = 0 V; T
amb
= 25
°
C; t
r
= t
f
≤
2.5 ns.
Symbol
Parameter
Conditions
C
L
= 15 pF;
V
CC
= 3.3 V
V
CC
= 3.3 V;
V
I
= GND to V
CC
[1]
Min
-
-
-
Typ
8.0
3.5
30
Max
-
-
-
Unit
ns
pF
pF
t
PHL
, t
PLH
propagation delay
1An to 1Yn, 2An to 2Yn
C
i
C
PD
[1]
input capacitance
power dissipation
capacitance
C
PD
is used to determine the dynamic power dissipation (P
D
in
µW).
P
D
= C
PD
×
V
CC2
×
f
i
×
N +
Σ(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in V;
N = number of inputs switching;
Σ(C
L
×
V
CC2
×
f
o
) = sum of the outputs.
Philips Semiconductors
74LV241
Octal buffer/line driver; 3-state
4. Ordering information
Table 2:
Ordering information
Package
Temperature range Name
74LV241N
74LV241D
74LV241DB
74LV241PW
−40 °C
to +125
°C
−40 °C
to +125
°C
−40 °C
to +125
°C
−40 °C
to +125
°C
DIP20
SO20
SSOP20
TSSOP20
Description
plastic dual in-line package; 20 leads (300 mil)
plastic small outline package; 20 leads;
body width 7.5 mm
plastic shrink small outline package; 20 leads;
body width 5.3 mm
plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
Version
SOT146-1
SOT163-1
SOT339-1
SOT360-1
Type number
5. Functional diagram
2
1A0
1Y0
18
4
1A1
1Y1
16
6
1A2
1Y2
14
8
1
1A3
1OE
1Y3
12
17
2A0
2Y0
3
15
2A1
2Y1
5
13
2A2
2Y2
7
11
19
2A3
2OE
2Y3
9
mna772
Fig 1. Functional diagram
74LV241_3
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 10 October 2005
2 of 17
Philips Semiconductors
74LV241
Octal buffer/line driver; 3-state
1
2
17
4
15
6
13
8
11
1
1A0
2A0
1A1
2A1
1A2
2A2
1A3
2A3
1OE
1Y0
2Y0
1Y1
2Y1
1Y2
2Y2
1Y3
2Y3
18
3
2
16
5
14
7
12
9
11
13
15
19
2OE
mna771
EN
18
16
14
12
4
6
8
19
EN
9
7
5
3
mna773
17
Fig 2. Logic symbol
Fig 3. IEC logic symbol
6. Pinning information
6.1 Pinning
1OE
1A0
2Y0
1A1
2Y1
1A2
2Y2
1A3
2Y3
1
2
3
4
5
6
7
8
9
20 V
CC
19 2OE
18 1Y0
17 2A0
16 1Y1
15 2A1
14 1Y2
13 2A2
12 1Y3
11 2A3
001aad445
241
GND 10
Fig 4. Pin configuration
6.2 Pin description
Table 3:
Symbol
1OE
1A0
2Y0
1A1
2Y1
Pin description
Pin
1
2
3
4
5
Description
1 output enable input (active LOW)
1 data input 0
2 bus output 0
1 data input 1
2 bus output 1
74LV241_3
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 10 October 2005
3 of 17
Philips Semiconductors
74LV241
Octal buffer/line driver; 3-state
Pin description
…continued
Pin
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Description
1 data input 2
2 bus output 2
1 data input 3
2 bus output 3
ground (0 V)
2 data input 3
1 bus output 3
2 data input 2
1 bus output 2
2 data input 1
1 bus output 1
2 data input 0
1 bus output 0
2 output enable input (active HIGH)
supply voltage
Table 3:
Symbol
1A2
2Y2
1A3
2Y3
GND
2A3
1Y3
2A2
1Y2
2A1
1Y1
2A0
1Y0
2OE
V
CC
7. Functional description
7.1 Function table
Table 4:
Input
1OE
L
L
H
[1]
Function table
[1]
Output
1An
L
H
X
1Yn
L
H
Z
Input
2OE
H
H
L
2An
L
H
X
Output
2Yn
L
H
Z
H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
Z = high-impedance OFF-state.
8. Limiting values
Table 5:
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to
GND (ground = 0 V).
Symbol
V
CC
I
IK
I
OK
I
O
74LV241_3
Parameter
supply voltage
input clamping current
Conditions
V
I
<
−0.5
V or
V
I
> V
CC
+ 0.5 V
Min
−0.5
-
-
-
Max
+4.6
±20
±50
±35
Unit
V
mA
mA
mA
output clamping current V
I
<
−0.5
V or
V
I
> V
CC
+ 0.5 V
output current
V
O
= 0.5 V to V
CC
+ 0.5 V
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 10 October 2005
4 of 17
Philips Semiconductors
74LV241
Octal buffer/line driver; 3-state
Table 5:
Limiting values
…continued
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to
GND (ground = 0 V).
Symbol
I
CC
I
GND
T
stg
P
tot
Parameter
supply current
ground current
storage temperature
total power dissipation
DIL20 package
SO20 package
(T)SSOP20 package
[1]
Conditions
Min
-
-
−65
Max
±70
±70
+150
750
500
400
Unit
mA
mA
°C
mW
mW
mW
T
amb
=
−40 °C
to +125
°C
[1]
-
-
-
For DIL20 packages: above 70
°C
the value of P
tot
derates linearly with 12 mW/K.
For SO20 packages: above 70
°C
the value of P
tot
derates linearly with 8 mW/K.
For (T)SSOP20 packages: above 60
°C
the value of P
tot
derates linearly with 5.5 mW/K.
9. Recommended operating conditions
Table 6:
Symbol
V
CC
V
I
V
O
T
amb
t
r
, t
f
Recommended operating conditions
Parameter
supply voltage
input voltage
output voltage
ambient temperature
in free air
V
CC
= 2.0 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
[1]
Conditions
[1]
Min
1.0
0
0
−40
-
-
-
Typ
3.3
-
-
-
-
-
-
Max
3.6
V
CC
V
CC
+125
500
200
100
Unit
V
V
V
°C
ns/V
ns/V
ns/V
input rise and fall times V
CC
= 1.0 V to 2.0 V
The 74LV241 is guaranteed to function down to 1.0 V (input levels GND or V
CC
); static characteristics are
guaranteed from V
CC
= 1.2 V to V
CC
= 3.6 V.
10. Static characteristics
Table 7:
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol
V
IH
Parameter
HIGH-level input voltage
Conditions
V
CC
= 1.2 V
V
CC
= 2.0 V
V
CC
= 2.7 V to 3.6 V
V
IL
LOW-level input voltage
V
CC
= 1.2 V
V
CC
= 2.0 V
V
CC
= 2.7 V to 3.6 V
Min
0.9
1.4
2.0
-
-
-
Typ
-
-
-
-
-
-
Max
-
-
-
0.3
0.6
0.8
Unit
V
V
V
V
V
V
T
amb
=
−40 °C
to +85
°C
[1]
74LV241_3
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 10 October 2005
5 of 17
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