74AHC541; 74AHCT541
Octal buffer/line driver; 3-state
Rev. 03 — 12 November 2007
Product data sheet
1. General description
The 74AHC541; 74AHCT541 is a high-speed Si-gate CMOS device.
The 74AHC541; 74AHCT541 are octal non-inverting buffer/line drivers with 3-state bus
compatible outputs.
The 3-state outputs are controlled by the output enable inputs OE0 and OE1.
A HIGH on OEn causes the outputs to assume a high-impedance OFF-state.
2. Features
s
s
s
s
s
s
Balanced propagation delays
All inputs have a Schmitt-trigger action
Inputs accepts voltages higher than V
CC
For 74AHC541 only: operates with CMOS input levels
For 74AHCT541 only: operates with TTL input levels
ESD protection:
x
HBM JESD22-A114E exceeds 2000 V
x
MM JESD22-A115-A exceeds 200 V
x
CDM JESD22-C101C exceeds 1000 V
s
Multiple package options
s
Specified from
−40 °C
to +85
°C
and from
−40 °C
to +125
°C
3. Ordering information
Table 1.
Ordering information
Package
Temperature range
74AHC541D
74AHCT541D
74AHC541PW
74AHCT541PW
74AHC541BQ
74AHCT541BQ
−40 °C
to +125
°C
DHVQFN20
−40 °C
to +125
°C
TSSOP20
−40 °C
to +125
°C
Name
SO20
Description
plastic small outline package; 20 leads;
body width 7.5 mm
plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
Version
SOT163-1
SOT360-1
Type number
plastic dual-in-line compatible thermal enhanced
SOT764-1
very thin quad flat package; no leads; 20 terminals;
body 2.5
×
4.5
×
0.85 mm
NXP Semiconductors
74AHC541; 74AHCT541
Octal buffer/line driver; 3-state
4. Functional diagram
A0
Y0
2
18
3
A1
Y1
17
4
A2
Y2
16
5
A3
Y3
15
6
A4
Y4
14
1
19
&
EN
18
17
16
15
14
13
12
11
mna180
7
A5
Y5
13
2
3
8
A6
Y6
12
4
5
9
A7
Y7
11
6
7
OE0
1
19
OE1
mna179
8
9
Fig 1. Logic symbol
Fig 2. IEC logic symbol
74AHC_AHCT541_3
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 03 — 12 November 2007
2 of 16
NXP Semiconductors
74AHC541; 74AHCT541
Octal buffer/line driver; 3-state
5. Pinning information
5.1 Pinning
74AHC541
74AHCT541
OE0
2
3
4
5
6
7
8
9
GND 10
Y7 11
GND
(1)
1
terminal 1
index area
20 V
CC
19 OE1
18 Y0
17 Y1
16 Y2
15 Y3
14 Y4
13 Y5
12 Y6
74AHC541
74AHCT541
OE0
A0
A1
A2
A3
A4
A5
A6
A7
1
2
3
4
5
6
7
8
9
20 V
CC
19 OE1
18 Y0
17 Y1
16 Y2
15 Y3
14 Y4
13 Y5
12 Y6
11 Y7
001aah038
A0
A1
A2
A3
A4
A5
A6
A7
GND 10
001aah039
Transparent top view
(1) The die substrate is attached to this pad using
conductive die attach material. It can not be used as
a supply pin or input.
Fig 3. Pin configuration SO20, TSSOP20
Fig 4. Pin configuration DHVQFN20
5.2 Pin description
Table 2.
Symbol
OE0
A[0:7]
GND
Y[0:7]
OE1
V
CC
Pin description
Pin
1
2, 3, 4, 5, 6, 7, 8, 9
10
19
20
Description
output enable input (active LOW)
data input
ground (0 V)
output enable input (active LOW)
supply voltage
18, 17, 16, 15, 14, 13, 12, 11 data output
74AHC_AHCT541_3
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 03 — 12 November 2007
3 of 16
NXP Semiconductors
74AHC541; 74AHCT541
Octal buffer/line driver; 3-state
6. Functional description
Table 3.
Control
OE0
L
L
X
H
[1]
Functional table
[1]
Input
OE1
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
V
I
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
P
tot
Parameter
supply voltage
input voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
SO20 package
TSSOP20 package
DHVQFN20 package
[1]
[2]
[3]
[4]
Conditions
Min
−0.5
−0.5
Max
+7.0
+7.0
-
±20
±25
75
-
+150
500
500
500
Unit
V
V
mA
mA
mA
mA
mA
°C
mW
mW
mW
V
I
<
−0.5
V
V
O
<
−0.5
V or V
O
> V
CC
+ 0.5 V
V
O
=
−0.5
V to (V
CC
+ 0.5 V)
[1]
[1]
−20
-
-
-
−75
−65
T
amb
=
−40 °C
to +125
°C
[2]
[3]
[4]
-
-
-
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
P
tot
derates linearly with 8 mW/K above 70
°C.
P
tot
derates linearly with 5.5 mW/K above 60
°C.
P
tot
derates linearly with 4.5 mW/K above 60
°C.
74AHC_AHCT541_3
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 03 — 12 November 2007
4 of 16
NXP Semiconductors
74AHC541; 74AHCT541
Octal 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
∆t/∆V
supply voltage
input voltage
output voltage
ambient temperature
input transition rise
and fall rate
V
CC
= 3.3 V
±
0.3 V
V
CC
= 5.0 V
±
0.5 V
Conditions
74AHC541
Min
2.0
0
0
−40
-
-
Typ
5.0
-
-
+25
-
-
Max
5.5
5.5
V
CC
+125
100
20
74AHCT541
Min
4.5
0
0
−40
-
-
Typ
5.0
-
-
+25
-
-
Max
5.5
5.5
V
CC
+125
-
20
V
V
V
°C
ns/V
ns/V
Unit
9. Static characteristics
Table 6.
Static characteristics
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
For type 74AHC541
V
IH
HIGH-level
input voltage
V
CC
= 2.0 V
V
CC
= 3.0 V
V
CC
= 5.5 V
V
IL
LOW-level
input voltage
V
CC
= 2.0 V
V
CC
= 3.0 V
V
CC
= 5.5 V
V
OH
HIGH-level
V
I
= V
IH
or V
IL
output voltage
I
O
=
−50 µA;
V
CC
= 2.0 V
I
O
=
−50 µA;
V
CC
= 3.0 V
I
O
=
−50 µA;
V
CC
= 4.5 V
I
O
=
−4.0
mA; V
CC
= 3.0 V
I
O
=
−8.0
mA; V
CC
= 4.5 V
V
OL
LOW-level
V
I
= V
IH
or V
IL
output voltage
I
O
= 50
µA;
V
CC
= 2.0 V
I
O
= 50
µA;
V
CC
= 3.0 V
I
O
= 50
µA;
V
CC
= 4.5 V
I
O
= 4.0 mA; V
CC
= 3.0 V
I
O
= 8.0 mA; V
CC
= 4.5 V
I
OZ
OFF-state
V
I
= V
IH
or V
IL
;
output current V
O
= V
CC
or GND;
V
CC
= 5.5 V
input leakage
current
V
I
= V
CC
or GND;
V
CC
= 0 V to 5.5 V
1.5
2.1
3.85
-
-
-
1.9
2.9
4.4
2.58
3.94
-
-
-
-
-
-
-
-
-
-
-
-
2.0
3.0
4.5
-
-
0
0
0
-
-
-
-
-
-
0.5
0.9
1.65
-
-
-
-
-
0.1
0.1
0.1
0.36
0.36
±0.25
1.5
2.1
3.85
-
-
-
1.9
2.9
4.4
2.48
3.8
-
-
-
-
-
-
-
-
-
0.5
0.9
1.65
-
-
-
-
-
0.1
0.1
0.1
0.44
0.44
±2.5
1.5
2.1
3.85
-
-
-
1.9
2.9
4.4
2.40
3.70
-
-
-
-
-
-
-
-
-
0.5
0.9
1.65
-
-
-
-
-
0.1
0.1
0.1
0.55
0.55
±10.0
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
µA
Conditions
Min
25
°C
Typ
Max
−40 °C
to +85
°C −40 °C
to +125
°C
Unit
Min
Max
Min
Max
I
I
I
CC
-
-
-
-
0.1
4.0
-
-
1.0
40
-
-
2.0
80
µA
µA
supply current V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
74AHC_AHCT541_3
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 03 — 12 November 2007
5 of 16
