STMICROELECTRONICS 74LVX27

74LVX27
LOW VOLTAGE CMOS TRIPLE 3-INPUT NOR GATE
WITH 5V TOLERANT INPUTS
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HIGH SPEED:
tPD = 4.1ns (TYP.) at VCC = 3.3V
5V TOLERANT INPUTS
INPUT VOLTAGE LEVEL:
VIL=0.8V, VIH=2V at VCC=3V
LOW POWER DISSIPATION:
ICC = 2 µA (MAX.) at TA=25°C
LOW NOISE:
VOLP = 0.3V (TYP.) at VCC = 3.3V
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
OPERATING VOLTAGE RANGE:
VCC(OPR) = 2V to 3.6V (1.2V Data Retention)
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 27
IMPROVED LATCH-UP IMMUNITY
POWER DOWN PROTECTION ON INPUTS
DESCRIPTION
The 74LVX27 is a low voltage CMOS TRIPLE
3-INPUT NOR GATE fabricated with sub-micron
silicon gate and double-layer metal wiring C2MOS
technology. It is ideal for low power, battery
operated and low noise 3.3V applications.
SOP
TSSOP
Table 1: Order Codes
PACKAGE
T&R
SOP
TSSOP
74LVX27MTR
74LVX27TTR
The internal circuit is composed of 3 stages
including buffer output, which provides high noise
immunity and stable output.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage.
This device can be used to interface 5V to 3V
system. It combines high speed performance with
the true CMOS low power consumption.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
Figure 1: Pin Connection And IEC Logic Symbols
August 2004
Rev. 3
1/11
74LVX27
Figure 2: Input Equivalent Circuit
Table 2: Pin Description
PIN N°
SYMBOL
1, 3, 9
2, 4, 10
13, 5, 11
12, 6, 8
7
1A to 3A
1B to 3B
1C to 3C
1Y to 3Y
GND
VCC
14
NAME AND FUNCTION
Data Inputs
Data Inputs
Data Inputs
Data Outputs
Ground (0V)
Positive Supply Voltage
Table 3: Truth Table
A
B
C
Y
L
H
X
X
L
X
H
X
L
X
X
H
H
L
L
L
X : Don‘t Care
Table 4: Absolute Maximum Ratings
Symbol
VCC
Parameter
Value
Unit
Supply Voltage
-0.5 to +7.0
V
VI
DC Input Voltage
-0.5 to +7.0
V
VO
DC Output Voltage
-0.5 to VCC + 0.5
V
IIK
DC Input Diode Current
- 20
mA
IOK
DC Output Diode Current
± 20
mA
IO
DC Output Current
± 25
mA
ICC or IGND DC VCC or Ground Current
Tstg
Storage Temperature
TL
Lead Temperature (10 sec)
± 50
mA
-65 to +150
°C
300
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
Table 5: Recommended Operating Conditions
Symbol
VCC
Parameter
Supply Voltage (note 1)
Unit
2 to 3.6
V
VI
Input Voltage
0 to 5.5
V
VO
Output Voltage
0 to VCC
V
Top
Operating Temperature
dt/dv
Input Rise and Fall Time (note 2) (VCC = 3.3V)
1) Truth Table guaranteed: 1.2V to 3.6V
2) VIN from 0.8V to 2.0V
2/11
Value
-55 to 125
°C
0 to 100
ns/V
74LVX27
Table 6: DC Specifications
Test Condition
Symbol
VIH
VIL
VOH
VOL
II
ICC
Parameter
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage
Current
Quiescent Supply
Current
Value
TA = 25°C
VCC
(V)
Min.
2.0
3.0
3.6
2.0
3.0
3.6
Typ.
Max.
1.5
2.0
2.4
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
1.5
2.0
2.4
0.5
0.8
0.8
Max.
1.5
2.0
2.4
0.5
0.8
0.8
Unit
V
0.5
0.8
0.8
V
2.0
IO=-50 µA
1.9
2.0
3.0
IO=-50 µA
2.9
3.0
3.0
IO=-4 mA
2.58
2.0
IO=50 µA
0.0
0.1
0.1
0.1
3.0
IO=50 µA
0.0
0.1
0.1
0.1
3.0
IO=4 mA
0.36
0.44
0.55
3.6
VI = 5V or GND
± 0.1
±1
±1
µA
3.6
VI = VCC or GND
2
20
20
µA
1.9
1.9
2.9
2.9
2.48
2.4
V
V
Table 7: Dynamic Switching Characteristics
Test Condition
Symbol
VOLP
VOLV
VIHD
VILD
Parameter
Dynamic Low
Voltage Quiet
Output (note 1, 2)
Dynamic High
Voltage Input (note
1, 3)
Dynamic Low
Voltage Input (note
1, 3)
Value
TA = 25°C
VCC
(V)
Min.
3.3
-0.5
3.3
Typ.
Max.
0.3
0.5
-55 to 125°C
Min.
Min.
Max.
Unit
Max.
-0.3
2
CL = 50 pF
3.3
-40 to 85°C
V
0.8
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (VILD), 0V to threshold
(VIHD), f=1MHz.
3/11
74LVX27
Table 8: AC Electrical Characteristics (Input tr = tf = 3ns)
Test Condition
Symbol
Parameter
tPLH tPHL Propagation Delay
Time
tOSLH
tOSHL
Output To Output
Skew Time (note1,
2)
VCC
(V)
CL
(pF)
2.7
2.7
Value
TA = 25°C
Min.
-40 to 85°C
-55 to 125°C
Typ.
Max.
Min.
Max.
Min.
Max.
15
50
5.2
8.0
8.6
13.5
1.0
1.0
10.5
15.4
1.0
1.0
12.0
17.0
3.3(*)
15
4.1
6.2
1.0
7.5
1.0
9.0
3.3(*)
2.7
50
6.6
9.7
1.0
11.0
1.0
12.5
50
3.3(*)
50
0.5
0.5
1.0
1.0
1.5
1.5
1.5
1.5
Unit
ns
ns
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW
2) Parameter guaranteed by design
(*) Voltage range is 3.3V ± 0.3V
Table 9: Capacitive Characteristics
Test Condition
Symbol
Parameter
VCC
(V)
Value
TA = 25°C
Min.
Typ.
Max.
10
CIN
Input Capacitance
3.3
4
CPD
Power Dissipation
Capacitance
(note 1)
3.3
19
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
10
Unit
Max.
10
pF
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/3 (per gate)
Figure 3: Test Circuit
CL =15/50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
4/11
74LVX27
Figure 4: Waveform - Propagation Delays (f=1MHz; 50% duty cycle)
5/11
74LVX27
SO-14 MECHANICAL DATA
DIM.
mm.
MIN.
TYP
inch
MAX.
MIN.
TYP.
MAX.
A
1.35
1.75
0.053
0.069
A1
0.1
0.25
0.004
0.010
A2
1.10
1.65
0.043
0.065
B
0.33
0.51
0.013
0.020
C
0.19
0.25
0.007
0.010
D
8.55
8.75
0.337
0.344
E
3.8
4.0
0.150
0.157
e
1.27
0.050
H
5.8
6.2
0.228
0.244
h
0.25
0.50
0.010
0.020
L
0.4
1.27
0.016
0.050
k
0°
8°
0°
8°
ddd
0.100
0.004
0016019D
6/11
74LVX27
TSSOP14 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MAX.
MIN.
TYP.
MAX.
1.2
A1
0.05
A2
0.8
b
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.0089
D
4.9
5
5.1
0.193
0.197
0.201
E
6.2
6.4
6.6
0.244
0.252
0.260
E1
4.3
4.4
4.48
0.169
0.173
0.176
1
e
0.65 BSC
K
0˚
L
0.45
A
0.60
0.0256 BSC
8˚
0˚
0.75
0.018
8˚
0.024
0.030
A2
A1
b
e
K
c
L
E
D
E1
PIN 1 IDENTIFICATION
1
0080337D
7/11
74LVX27
Tape & Reel SO-14 MECHANICAL DATA
mm.
inch
DIM.
MIN.
A
MAX.
MIN.
330
13.2
TYP.
MAX.
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
8/11
TYP
0.504
22.4
0.519
0.882
Ao
6.4
6.6
0.252
0.260
Bo
9
9.2
0.354
0.362
Ko
2.1
2.3
0.082
0.090
Po
3.9
4.1
0.153
0.161
P
7.9
8.1
0.311
0.319
74LVX27
Tape & Reel TSSOP14 MECHANICAL DATA
mm.
inch
DIM.
MIN.
A
TYP
MAX.
MIN.
330
MAX.
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
13.2
TYP.
0.504
22.4
0.519
0.882
Ao
6.7
6.9
0.264
0.272
Bo
5.3
5.5
0.209
0.217
Ko
1.6
1.8
0.063
0.071
Po
3.9
4.1
0.153
0.161
P
7.9
8.1
0.311
0.319
9/11
74LVX27
Table 10: Revision History
Date
Revision
27-Aug-2004
3
10/11
Description of Changes
Ordering Codes Revision - pag. 1.
74LVX27
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