74HC7541; 74HCT7541
Octal Schmitt trigger buffer/line driver; 3-state
Rev. 7 — 4 March 2016
Product data sheet
1. General description
The 74HC7541; 74HCT7541 is an 8-bit buffer/line driver with Schmitt-trigger inputs and
3-state outputs. The device features two output enables (OE1 and OE2). A HIGH on OEn
causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes.
This enables the use of current limiting resistors to interface inputs to voltages in excess
of V
CC
. Schmitt trigger inputs transform slowly changing input signals into sharply defined
jitter-free output signals.
2. Features and benefits
Non-inverting outputs
Low-power dissipation
Input levels:
For 74HC7541: CMOS level
For 74HCT7541: TTL level
Complies with JEDEC standard no. 7A
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from
40 C
to +85
C
and from
40 C
to +125
C
3. Ordering information
Table 1.
Ordering information
Package
Temperature range
74HC7541D
74HCT7541D
74HC7541DB
74HC7541PW
74HCT7541PW
40 C
to +125
C
40 C
to +125
C
SSOP20
TSSOP20
40 C
to +125
C
Name
SO20
Description
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
SOT163-1
SOT339-1
SOT360-1
Type number
Nexperia
74HC7541; 74HCT7541
Octal Schmitt trigger buffer/line driver; 3-state
4. Functional diagram
1
19
2
3
4
5
6
7
8
9
&
EN
18
17
16
15
14
13
12
11
aaa-000085
Fig 1.
Logic symbol
Fig 2.
IEC logic symbol
5. Pinning information
5.1 Pinning
74HC7541
74HCT7541
OE1
AO
A1
A2
A3
A4
A5
A6
A7
1
2
3
4
5
6
7
8
9
20 V
CC
19 OE2
18 Y0
17 Y1
16 Y2
15 Y3
14 Y4
13 Y5
12 Y6
11 Y7
aaa-000087
GND 10
Fig 3.
Pin configuration SO20
Fig 4.
Pin configuration SSOP20, TSSOP20
74HC_HCT7541
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 7 — 4 March 2016
2 of 16
Nexperia
74HC7541; 74HCT7541
Octal Schmitt trigger buffer/line driver; 3-state
5.2 Pin description
Table 2.
Symbol
OE1
A0 to A7
GND
Y0 to Y7
OE2
V
CC
Pin description
Pin
1
2, 3, 4, 5, 6, 7, 8, 9
10
18, 17, 16, 15, 14, 13, 12, 11
19
20
Description
output enable input (active LOW)
data input
ground (0 V)
data output
output enable input (active LOW)
supply voltage
6. Functional description
Table 3.
Control
OE1
L
L
X
H
[1]
Functional table
[1]
Input
OE2
L
L
H
X
An
L
H
X
X
Output
Yn
L
H
Z
Z
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7. Limiting values
Table 4.
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
I
CC
I
GND
T
stg
P
tot
[1]
[2]
Parameter
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
Conditions
V
I
<
0.5
V or V
I
> V
CC
+ 0.5 V
V
O
<
0.5
V or V
O
> V
CC
+ 0.5 V
0.5
V < V
O
< V
CC
+ 0.5 V
[1]
[1]
Min
0.5
-
-
-
-
70
65
Max
+7
20
20
35
70
-
+150
500
Unit
V
mA
mA
mA
mA
mA
C
mW
SO20, SSOP20, TSSOP20
[2]
-
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For SO20 packages: above 70
C
the value of P
tot
derates linearly with 8 mW/K.
For SSOP20 and TSSOP20 packages: above 60
C
the value of P
tot
derates linearly with 5.5 mW/K.
74HC_HCT7541
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 7 — 4 March 2016
3 of 16
Nexperia
74HC7541; 74HCT7541
Octal Schmitt trigger buffer/line driver; 3-state
8. Recommended operating conditions
Table 5.
Recommended operating conditions
Voltages are referenced to GND (ground = 0 V)
Symbol Parameter
V
CC
V
I
V
O
T
amb
supply voltage
input voltage
output voltage
ambient temperature
Conditions
Min
2.0
0
0
40
74HC7541
Typ
5.0
-
-
+25
Max
6.0
V
CC
V
CC
+125
Min
4.5
0
0
40
74HCT7541
Typ
5.0
-
-
+25
Max
5.5
V
CC
V
CC
+125
V
V
V
C
Unit
9. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
T
amb
= 25
C
Min
74HC7541
V
OH
HIGH-level
output voltage
V
I
= V
T+
or V
T
I
O
=
20 A;
V
CC
= 2.0 V
I
O
=
20 A;
V
CC
= 4.5 V
I
O
=
20 A;
V
CC
= 6.0 V
I
O
=
6.0
mA; V
CC
= 4.5 V
I
O
=
7.8
mA; V
CC
= 6.0 V
V
OL
LOW-level
output voltage
V
I
= V
T+
or V
T
I
O
= 20
A;
V
CC
= 2.0 V
I
O
= 20
A;
V
CC
= 4.5 V
I
O
= 20
A;
V
CC
= 6.0 V
I
O
= 6.0 mA; V
CC
= 4.5 V
I
O
= 7.8 mA; V
CC
= 6.0 V
I
I
I
OZ
I
CC
C
I
input leakage
current
OFF-state
output current
supply current
input
capacitance
HIGH-level
output voltage
V
I
= V
T+
or V
T
; V
CC
= 4.5 V
I
O
=
20 A
I
O
=
6.0
mA
4.4
3.98
4.5
4.32
-
-
4.4
3.84
-
-
4.4
3.7
-
-
V
V
V
I
= V
CC
or GND; V
CC
= 6.0 V
V
I
= V
T+
or V
T
; V
CC
= 6.0 V;
V
O
= V
CC
or GND
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 6.0 V
-
-
-
-
-
-
-
-
-
0
0
0
0.15
0.16
-
-
-
3.5
0.1
0.1
0.1
0.26
0.26
0.1
0.5
8.0
-
-
-
-
-
-
-
-
-
-
0.1
0.1
0.1
0.33
0.33
1.0
5.0
80
-
-
-
-
-
-
-
-
-
-
0.1
0.1
0.1
0.4
0.4
1.0
10
160
-
V
V
V
V
V
A
A
A
pF
1.9
4.4
5.9
3.98
5.48
2.0
4.5
6.0
4.32
5.81
-
-
-
-
-
1.9
4.4
5.9
3.84
5.34
-
-
-
-
-
1.9
4.4
5.9
3.7
5.2
-
-
-
-
-
V
V
V
V
V
Typ
Max
T
amb
=
40 C
to +85
C
Min
Max
T
amb
=
40 C
to +125
C
Min
Max
Unit
74HCT7541
V
OH
74HC_HCT7541
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 7 — 4 March 2016
4 of 16
Nexperia
74HC7541; 74HCT7541
Octal Schmitt trigger buffer/line driver; 3-state
Table 6.
Static characteristics
…continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
T
amb
= 25
C
Min
V
OL
LOW-level
output voltage
V
I
= V
T+
or V
T
; V
CC
= 4.5 V
I
O
= 20
A;
I
O
= 6.0 mA;
I
I
I
OZ
I
CC
I
CC
input leakage
current
OFF-state
output current
supply current
additional
supply current
V
I
= V
CC
or GND; V
CC
= 5.5 V
V
I
= V
T+
or V
T
; V
CC
= 5.5 V;
V
O
= V
CC
or GND
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
per input pin; I
O
= 0 A;
V
I
= V
CC
2.1 V;
other inputs at V
CC
or GND;
V
CC
= 4.5 V to 5.5 V
An input
OEn input
C
I
input
capacitance
-
-
-
20
130
3.5
72
468
-
-
-
-
90
585
-
-
-
-
98
637
-
A
A
pF
-
-
-
-
-
0
0.15
-
-
-
0.1
0.26
0.1
0.5
8.0
-
-
-
-
-
0.1
0.33
1.0
5.0
80
-
-
-
-
-
0.1
0.4
1.0
10
160
V
V
A
A
A
Typ
Max
T
amb
=
40 C
to +85
C
Min
Max
T
amb
=
40 C
to +125
C
Min
Max
Unit
10. Dynamic characteristics
Table 7.
Dynamic characteristics
GND = 0 V; C
L
= 50 pF; for test circuit see
Figure 7.
Symbol Parameter
74HC7541
t
pd
propagation delay An to Yn; see
Figure 5
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 5.0 V; C
L
= 15 pF
V
CC
= 6.0 V
t
en
enable time
OEn to Yn; see
Figure 6
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
t
dis
disable time
OEn to Yn; see
Figure 6
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
[1]
[1]
[1]
Conditions
T
amb
= 25
C
Min
Typ
Max
T
amb
=
40 C
to +125
C
Max (85
C)
Max (125
C)
Unit
-
-
-
-
-
-
-
-
-
-
39
14
10
11
44
16
13
58
21
17
120
24
-
20
160
32
27
160
32
27
150
30
-
26
200
40
34
200
40
34
180
36
-
32
240
48
41
240
48
41
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
74HC_HCT7541
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 7 — 4 March 2016
5 of 16
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