SGS Thomson Microelectronics 74VHC20MTR, 74VHC20M Datasheet
1/7June 2001
■ HIGH SPEED: t
PD
= 3.3 ns (TYP.) at VCC = 5V
■ LOW POWER DISSIPATION:
I
CC
= 2 µA (MAX.) at TA=25°C
■ HIGH NOISE IMMUNITY:
V
NIH
= V
NIL
= 28% VCC (MIN.)
■ POWER DOWN PROTECTION ON INPUTS
■ SYMMETRICAL OUTPUT IMPED ANCE:
|I
OH
| = IOL = 8 mA (MIN)
■ BALANCED PROPAGATION DELAYS:
t
PLH
≅ t
PHL
■ OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 5.5V
■ PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 20
■ IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74VHC20 is a n advanced high-speed CM OS
DUAL 4-INPUT NAND GATE fabricated with
sub-micron silicon gate and double-layer metal
wiring C
2
MOS technology.
The internal circuit is composed of 3 stages
including buffer ou tput, 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.
All inputs and outputs are equipped with
protection circuits against stat ic discharge, giving
them 2KV ESD immunity and transient excess
voltage.
74VHC20
DUAL 4-INPUT NAND GATE
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE TUBE T & R
SOP 74VHC20M 74VHC20MTR
TSSOP 74VHC20TTR
TSSOPSOP
74VHC20
2/7
INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE
X : Don‘t Care
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
RECOMMENDED OPERATING CONDITIONS
1) VIN from 30 % to 70% of V
CC
PIN No SYMBOL NAME AND FUNCTION
1, 9 1A to 2A Data Inputs
2, 10 1B to 2B Data Inputs
3, 11 N.C. Not Connected
4, 12 1C to 2C Data Inputs
5, 13 1D to 2D Data Inputs
6, 8 1Y to 2Y Data Outputs
7 GND Ground (0V)
14
V
CC
Positive Supply Voltage
ABCDY
LXXXH
XLXXH
XXLXH
XXXLH
HHHHL
Symbol Parameter Value Unit
V
CC
Supply Voltage
-0.5 to +7.0 V
V
I
DC Input Voltage
-0.5 to +7.0 V
V
O
DC Output Voltage -0.5 to VCC + 0.5
V
I
IK
DC Input Diode Current
- 20 mA
I
OK
DC Output Diode Current
± 20 mA
I
O
DC Output Current
± 25 mA
I
CC
or I
GND
DC VCC or Ground Current
± 50 mA
T
stg
Storage Temperature
-65 to +150 °C
T
L
Lead Temperature (10 sec)
300 °C
Symbol Parameter Value Unit
V
CC
Supply Voltage
2 to 5.5 V
V
I
Input Voltage
0 to 5.5 V
V
O
Output Voltage 0 to V
CC
V
T
op
Operating Temperature
-55 to 125 °C
dt/dv
Input Rise and Fall Time (note 1) (V
CC
= 3.3 ± 0.3V)
(V
CC
= 5.0 ± 0.5V)
0 to 100
0 to 20
ns/V
74VHC20
3/7
DC SPECIFICATIONS
AC ELECTRICAL CHARACTERISTICS (Input t
r
= tf = 3ns)
(*) Vol tage range is 3. 3V ± 0.3V
(**) Voltage range is 5.0V ±
0.5V
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
V
IH
High Level Input
Voltage
2.0 1.5 1.5 1.5
V
3.0 to
5.5
0.7V
CC
0.7V
CC
0.7V
CC
V
IL
Low Level Input
Voltage
2.0 0.5 0.5 0.5
V
3.0 to
5.5
0.3V
CC
0.3V
CC
0.3V
CC
V
OH
High Level Output
Voltage
2.0
I
O
=-50 µA
1.9 2.0 1.9 1.9
V
3.0
I
O
=-50 µA
2.9 3.0 2.9 2.9
4.5
I
O
=-50 µA
4.4 4.5 4.4 4.4
3.0
I
O
=-4 mA
2.58 2.48 2.4
4.5
I
O
=-8 mA
3.94 3.8 3.7
V
OL
Low Level Output
Voltage
2.0
IO=50 µA
0.0 0.1 0.1 0.1
V
3.0
I
O
=50 µA
0.0 0.1 0.1 0.1
4.5
I
O
=50 µA
0.0 0.1 0.1 0.1
3.0
I
O
=4 mA
0.36 0.44 0.55
4.5
I
O
=8 mA
0.36 0.44 0.55
I
I
Input Leakage
Current
0 to
5.5
V
I
= 5.5V or GND
± 0.1 ± 1 ± 1 µA
I
CC
Quiescent Supply
Current
5.5
V
I
= VCC or GND
22020µA
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
C
L
(pF)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
t
PLH
t
PHL
Propagation Delay
Time
3.3
(*)
15 4.6 6.6 1.0 8.0 1.0 8.0
ns
3.3
(*)
50 7.1 10.1 1.0 11.5 1.0 11.5
5.0
(**)
15 3.3 5.0 1.0 6.0 1.0 6.0
5.0
(**)
50 4.8 7.0 1.0 8.0 1.0 8.0
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