74HC27; 74HCT27
Triple 3-input NOR gate
Rev. 03 — 7 January 2008
Product data sheet
1. General description
The 74HC27; 74HCT27 is a high-speed Si-gate CMOS device and is pin compatible with
Low-Power Schottky TTL (LSTTL).
The 74HC27; 74HCT27 provides the 3-input NOR function.
2. Features
s
Multiple package options
s
Complies with JEDEC standard no. 7A
s
ESD protection:
x
HBM JESD22-A114E exceeds 2000 V
x
MM JESD22-A115-A exceeds 200 V
s
Specified from
−40 °C
to +85
°C
and from
−40 °C
to +125
°C
3. Ordering information
Table 1.
Ordering information
Temperature range Name
74HC27N
74HC27D
74HC27DB
74HC27PW
74HC27BQ
−40 °C
to +125
°C
−40 °C
to +125
°C
−40 °C
to +125
°C
−40 °C
to +125
°C
−40 °C
to +125
°C
DIP14
SO14
SSOP14
TSSOP14
Description
plastic dual in-line package; 14 leads (300 mil)
plastic small outline package; 14 leads; body width
3.9 mm
Version
SOT27-1
SOT108-1
Type number Package
plastic shrink small outline package; 14 leads; body width SOT337-1
5.3 mm
plastic thin shrink small outline package; 14 leads; body
width 4.4 mm
SOT402-1
DHVQFN14 plastic dual in-line compatible thermal enhanced very thin SOT762-1
quad flat package; no leads; 14 terminals;
body 2.5
×
3
×
0.85 mm
DIP14
SO14
plastic dual in-line package; 14 leads (300 mil)
plastic small outline package; 14 leads; body width
3.9 mm
SOT27-1
SOT108-1
74HCT27N
74HCT27D
−40 °C
to +125
°C
−40 °C
to +125
°C
NXP Semiconductors
74HC27; 74HCT27
Triple 3-input NOR gate
Table 1.
Ordering information
…continued
Temperature range Name
Description
Version
Type number Package
74HCT27DB
74HCT27PW
74HCT27BQ
−40 °C
to +125
°C
−40 °C
to +125
°C
−40 °C
to +125
°C
SSOP14
TSSOP14
plastic shrink small outline package; 14 leads; body width SOT337-1
5.3 mm
plastic thin shrink small outline package; 14 leads; body
width 4.4 mm
SOT402-1
DHVQFN14 plastic dual in-line compatible thermal enhanced very thin SOT762-1
quad flat package; no leads; 14 terminals;
body 2.5
×
3
×
0.85 mm
4. Functional diagram
1
2
1
2
13
3
4
5
9
10
11
1A
1B
1C
2A
2B
2C
3A
3B
3C
mna936
≥
1
12
1Y
12
13
3
4
≥
1
6
2Y
6
5
9
A
≥
1
8
B
C
Y
3Y
8
10
11
mna935
mna937
Fig 1. Logic symbol
Fig 2. IEC logic symbol
Fig 3. Logic diagram (one gate)
74HC_HCT27_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 7 January 2008
2 of 16
NXP Semiconductors
74HC27; 74HCT27
Triple 3-input NOR gate
5. Pinning information
5.1 Pinning
74HC27
74HCT27
terminal 1
index area
14 V
CC
13 1C
12 1Y
11 3C
10 3B
9
8
3A
3Y
1B
2A
2B
2C
2Y
2
3
4
5
6
7
GND
3Y
8
14 V
CC
13 1C
12 1Y
11 3C
10 3B
9
3A
74HC27
74HCT27
1A
1B
2A
2B
2C
2Y
GND
1
2
3
4
5
6
7
1
1A
001aag760
001aag759
Transparent top view
(1) The die substrate is attached to this pad using
conductive die attach material. It can not be used as
supply pin or input
Fig 4. Pin configuration DIP14, SO14, (T)SSOP14
Fig 5. Pin configuration DHVQFN14
5.2 Pin description
Table 2.
Symbol
1A
1B
2A
2B
2C
2Y
GND
3Y
3A
3B
3C
1Y
1C
V
CC
Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
data input
data input
data input
data input
data input
data output
ground (0 V)
data output
data input
data input
data input
data output
data input
supply voltage
74HC_HCT27_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 7 January 2008
3 of 16
NXP Semiconductors
74HC27; 74HCT27
Triple 3-input NOR gate
6. Functional description
Table 3.
Inputs
nA
L
X
X
H
[1]
H = HIGH voltage level;
L = LOW voltage level;
X = don’t care.
Function table
[1]
Outputs
nB
L
X
H
X
nC
L
H
X
X
nY
H
L
L
L
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
Parameter
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
DIP14 package
SO14, (T)SSOP14 and
DHVQFN14 packages
[1]
[2]
[2]
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
-
-
-
-
−50
−65
-
-
Max
+7
±20
±20
±25
50
-
+150
750
500
Unit
V
mA
mA
mA
mA
mA
°C
mW
mW
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For DIP14 package: P
tot
derates linearly with 12 mW/K above 70
°C.
For SO14 package: P
tot
derates linearly with 8 mW/K above 70
°C.
For (T)SSOP14 packages: P
tot
derates linearly with 5.5 mW/K above 60
°C.
For DHVQFN14 packages: P
tot
derates linearly with 4.5 mW/K above 60
°C.
8. Recommended operating conditions
Table 5.
Symbol
Type 74HC27
V
CC
V
I
V
O
supply voltage
input voltage
output voltage
2.0
0
0
5.0
-
-
6.0
V
CC
V
CC
V
V
V
Recommended operating conditions
Parameter
Conditions
Min
Typ
Max
Unit
74HC_HCT27_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 7 January 2008
4 of 16
NXP Semiconductors
74HC27; 74HCT27
Triple 3-input NOR gate
Table 5.
Symbol
t
r
, t
f
Recommended operating conditions
…continued
Parameter
input rise and fall times
Conditions
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
Min
-
-
-
−40
4.5
0
0
V
CC
= 4.5 V
-
−40
Typ
-
6.0
-
-
5.0
-
-
6.0
-
Max
1000
500
400
+125
5.5
V
CC
V
CC
500
+125
Unit
ns
ns
ns
°C
V
V
V
ns
°C
T
amb
Type 74HCT27
V
CC
V
I
V
O
t
r
, t
f
T
amb
ambient temperature
supply voltage
input voltage
output voltage
input rise and fall times
ambient temperature
9. Static characteristics
Table 6.
Static characteristics type 74HC27; 74HCT27
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
74HC27
V
IH
HIGH-level
input voltage
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
V
IL
LOW-level
input voltage
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
V
OH
HIGH-level
V
I
= V
IH
or V
IL
output voltage
I
O
=
−20 µA;
V
CC
= 2.0 V
I
O
=
−20 µA;
V
CC
= 4.5 V
I
O
=
−20 µA;
V
CC
= 6.0 V
I
O
=
−4.0
mA; V
CC
= 4.5 V
I
O
=
−5.2
mA; V
CC
= 6.0 V
V
OL
LOW-level
V
I
= V
IH
or V
IL
output voltage
I
O
= 20
µA;
V
CC
= 2.0 V
I
O
= 20
µA;
V
CC
= 4.5 V
I
O
= 20
µA;
V
CC
= 6.0 V
I
O
= 4.0 mA; V
CC
= 4.5 V
I
O
= 5.2 mA; V
CC
= 6.0 V
I
I
I
CC
C
I
input leakage
current
V
I
= V
CC
or GND;
V
CC
= 6.0 V
1.5
3.15
4.2
-
-
-
1.9
4.4
5.9
1.2
2.4
3.2
0.8
2.1
2.8
2.0
4.5
6.0
-
-
-
0.5
1.35
1.8
-
-
-
-
-
0.1
0.1
0.1
0.26
0.26
±0.1
2.0
-
1.5
3.15
4.2
-
-
-
1.9
4.4
5.9
3.84
5.34
-
-
-
-
-
-
-
-
-
-
-
0.5
1.35
1.8
-
-
-
-
-
0.1
0.1
0.1
0.33
0.33
±1.0
20
-
1.5
3.15
4.2
-
-
-
1.9
4.4
5.9
3.7
5.2
-
-
-
-
-
-
-
-
-
-
-
0.5
1.35
1.8
-
-
-
-
-
0.1
0.1
0.1
0.4
0.4
±1.0
40
-
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
µA
µA
pF
Conditions
Min
25
°C
Typ
Max
−40 °C
to +85
°C −40 °C
to +125
°C
Unit
Min
Max
Min
Max
3.98 4.32
5.48 5.81
-
-
-
-
-
-
-
-
0
0
0
0.15
0.16
-
-
3.5
supply current V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 6.0 V
input
capacitance
74HC_HCT27_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 7 January 2008
5 of 16
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