74VHCT02A [STMICROELECTRONICS]
QUAD 2-INPUT NOR GATE; 四路2输入NOR门
| 型号： | 74VHCT02A |
| 厂家： | 
ST |
| 描述： | QUAD 2-INPUT NOR GATE |
| 文件： | 总7页 (文件大小：55K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
74VHCT02A
QUAD 2-INPUT NOR GATE
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HIGH SPEED:tPD =3.5ns (TYP.) atVCC = 5V
LOW POWER DISSIPATION:
I
CC =2 µA (MAX.) at TA =25 oC
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COMPATIBLEWITH TTL OUTPUTS:
VIH =2V (MIN), VIL = 0.8V(MAX)
POWERDOWN PROTECTIONON INPUTS&
OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 8 mA (MIN)
BALANCEDPROPAGATIONDELAYS:
tPLH tPHL
OPERATING VOLTAGERANGE:
M
T
(Micro Package)
(TSSOPPackage)
ORDER CODES :
74VHCT02AM
74VHCT02AT
The internal circuit is composed of 3 stages
including buffer output, which provide high noise
immunity and stable output.
Power down protection is provided on all inputs
and outputs 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.
VCC (OPR)= 4.5V to 5.5V
PIN AND FUNCTION COMPATIBLEWITH
74 SERIES02
IMPROVED LATCH-UP IMMUNITY
LOWNOISE:VOLP = 0.8V(Max.)
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■
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
DESCRIPTION
The 74VHCT02A is an advanced high-speed
CMOS QUAD 2-INPUT NOR GATE fabricated
with sub-micron silicon gate and double-layer
metal wiring C2MOS technology.
PIN CONNECTION AND IEC LOGIC SYMBOLS
1/7
August 1999
74VHCT02A
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
2, 5, 8, 11
3, 6, 9, 12
1, 4, 10, 13
7
SYMBOL NAME AND FUNCTION
1A to 4A Data Inputs
1B to 4B Data Inputs
1Y to 4Y Data Outputs
GND
VCC
Ground (0V)
14
Positive Supply Voltage
TRUTH TABLE
A
L
B
Y
H
L
L
L
L
H
L
L
H
H
H
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
VI
Parameter
Value
Unit
V
Supply Voltage
-0.5 to +7.0
-0.5 to +7.0
-0.5 to +7.0
-0.5 to VCC + 0.5
- 20
DC Input Voltage
V
VO
DC Output Voltage (see note 1)
DC Output Voltage (see note 2)
DC Input Diode Current
DC Output Diode Current
DC Output Current
V
VO
V
IIK
mA
mA
mA
mA
oC
oC
IOK
± 20
IO
± 25
ICC or IGND DC VCC or Ground Current
± 50
Tstg
Storage Temperature
-65 to +150
TL
Lead Temperature (10 sec)
300
AbsoluteMaximum Ratingsarethose values beyond whichdamage tothe device may occur. Functional operation under these condition isnot implied.
1)VCC =0V
2)High or Low State
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
VI
Parameter
Value
4.5 to 5.5
0 to 5.5
Unit
V
Supply Voltage
Input Voltage
V
VO
Output Voltage (see note 1)
0 to 5.5
V
VO
Output Voltage (see note 2)
0 to VCC
-40 to +85
0 to 20
V
oC
Top
Operating Temperature
dt/dv
ns/V
Input Rise and Fall Time (see note 3) (VCC = 5.0 ± 0.5V)
1)VCC =0V
2)High or Low State
3)VIN from0.8Vto2 V
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74VHCT02A
DC SPECIFICATIONS
Symbol
Parameter
Test Conditions
VCC
(V)
Value
TA = 25 oC
Min. Typ. Max. Min. Max.
Unit
-40 to 85 oC
VIH
VIL
High Level Input
Voltage
4.5 to 5.5
2
2
V
V
Low Level Input
Voltage
4.5 to 5.5
0.8
0.8
VOH
High Level Output
Voltage
4.5
4.5
IO=-50 µA
4.4
4.5
0.0
4.4
3.8
V
V
IO=-8 mA
3.94
VOL
Low Level Output
Voltage
4.5
IO=50
A
0.1
0.36
±0.1
2
0.1
0.44
±1.0
20
µ
4.5
IO=8 mA
II
Input Leakage Current
0 to 5.5
5.5
VI = 5.5V or GND
VI = VCC or GND
µA
µA
ICC
Quiescent Supply
Current
I
Additional Worst Case
Supply Current
5.5
0
One Input at 3.4V,
other input at VCC or
GND
1.35
0.5
1.5
5.0
mA
∆
CC
IOPD
Output Leakage
Current
VOUT = 5.5V
µA
AC ELECTRICAL CHARACTERISTICS
(Input tr = tf =3 ns)
Symbol
Parameter
Test Condition
Value
TA = 25 oC
Unit
VCC (*)
CL
-40 to 85 oC
(pF)
(V)
Min. Typ. Max. Min. Max.
tPLH
tPHL
Propagation Delay
Time
5.0
5.0
15
50
3.5
4.5
5.5
7.5
1.0
1.0
6.5
8.5
ns
(*)Voltage range is5V ± 0.5V
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
Test Conditions
Value
TA = 25 oC
Unit
-40 to 85 oC
Min. Typ. Max. Min. Max.
CIN
Input Capacitance
4
10
10
pF
pF
CPD
Power Dissipation
17
Capacitance (note 1)
1)CPD isdefined as thevalue ofthe IC’sinternal equivalent capacitance whichiscalculated fromthe operating current consumption without load. (Referto
TestCircuit).Average operating current can beobtained bythe followingequation. ICC(opr)= CPD • VCC • fIN + ICC/4(per Gate)
3/7
74VHCT02A
DYNAMIC SWITCHING CHARACTERISTICS
Symbol
Parameter
Test Conditions
VCC
(V)
Value
TA = 25 oC
Min. Typ. Max. Min. Max.
Unit
-40 to 85 oC
VOLP Dynamic Low Voltage
5.0
0.3
0.8
Quiet Output (note 1, 2)
VOLV
-0.8
2
-0.3
VIHD
VILD
Dynamic High Voltage
Input (note 1, 3)
5.0
5.0
CL = 50 pF
V
Dynamic Low Voltage
Input (note 1, 3)
0.8
1)Worstcase package.
2)Max number ofoutputs defined as (n). Datainputs aredriven 0Vto3.0V, (n -1)outputs switching andone outputatGND.
3)Max number ofdatainputs (n)switching.(n-1)switching 0Vto3.0V. Inputsunder testswitching: 3.0Vtothreshold (VILD),0V tothreshold (VIHD),f=1MHz.
TEST CIRCUIT
CL = 15/50 pF or equivalent (includes jig and probe capacitance)
RT = ZOUT ofpulse generator (typically50Ω)
WAVEFORM: PROPAGATION DELAYS
(f=1MHz; 50% duty cycle)
4/7
74VHCT02A
SO-14 MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
TYP.
MAX.
1.75
0.2
MIN.
MAX.
0.068
0.007
0.064
0.018
0.010
A
a1
a2
b
0.1
0.003
1.65
0.46
0.25
0.35
0.19
0.013
0.007
b1
C
0.5
0.019
c1
D
45 (typ.)
8.55
5.8
8.75
6.2
0.336
0.228
0.344
0.244
E
e
1.27
7.62
0.050
0.300
e3
F
3.8
4.6
0.5
4.0
5.3
0.149
0.181
0.019
0.157
0.208
0.050
0.026
G
L
1.27
0.68
M
S
8 (max.)
P013G
5/7
74VHCT02A
TSSOP14 MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
TYP.
MAX.
1.1
MIN.
MAX.
0.433
0.006
0.374
0.0118
0.0079
0.201
0.256
0.176
A
A1
A2
b
0.05
0.85
0.19
0.09
4.9
0.10
0.9
0.15
0.95
0.30
0.20
5.1
0.002
0.335
0.0075
0.0035
0.193
0.246
0.169
0.004
0.354
c
D
5
6.4
0.197
0.252
E
6.25
4.3
6.5
E1
e
4.4
4.48
0.173
0.65 BSC
4o
0.0256 BSC
4o
K
0o
8o
0o
8o
L
0.50
0.60
0.70
0.020
0.024
0.028
A2
A
K
L
b
e
A1
c
E
D
E1
PIN 1 IDENTIFICATION
1
6/7
74VHCT02A
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7/7
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