74VHCT05A
HEX INVERTER (OPEN DRAIN)
s
s
s
s
s
s
s
s
HIGH SPEED: t
PZ
= 3.5 ns (TYP.) at V
CC
= 5V
LOW POWER DISSIPATION:
I
CC
= 2
µA
(MAX.) at T
A
=25°C
COMPATIBLE WITH TTL OUTPUTS:
V
IH
= 2V (MIN.), V
IL
= 0.8V (MAX)
POWER DOWN PROTECTION ON INPUTS
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 4.5V to 5.5V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 05
IMPROVED LATCH-UP IMMUNITY
LOW NOISE: V
OLP
= 0.8V (MAX.)
SOP
TSSOP
Table 1: Order Codes
PACKAGE
SOP
TSSOP
T&R
74VHCT05AMTR
74VHCT05ATTR
DESCRIPTION
The 74VHCT05A is an advanced high-speed
CMOS OPEN DRAIN HEX INVERTER 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 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 since all inputs are
equipped with TTL threshold.
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
December 2004
Rev. 4
1/11
74VHCT05A
Figure 2: Input Equivalent Circuit
Table 2: Pin Description
PIN N°
1, 3, 5, 9, 11,
13
2, 4, 6, 8, 10,
12
7
14
SYMBOL
1A to 6A
1Y to 6Y
GND
V
CC
NAME AND FUNCTION
Data Inputs
Data Outputs
Ground (0V)
Positive Supply Voltage
Table 3: Truth Table
A
L
H
Z: High Impedance
Y
Z
L
Table 4: Absolute Maximum Ratings
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Current
Parameter
Value
-0.5 to +7.0
-0.5 to +7.0
-0.5 to V
CC
+ 0.5
- 20
±
20
±
25
±
50
-65 to +150
300
Unit
V
V
V
mA
mA
mA
mA
°C
°C
I
CC
or I
GND
DC V
CC
or Ground Current
Storage Temperature
T
stg
T
L
Lead Temperature (10 sec)
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
V
CC
V
I
V
O
T
op
dt/dv
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Input Rise and Fall Time (see note 1) (V
CC
= 5.0
±
0.5V)
Parameter
Value
4.5 to 5.5
0 to 5.5
0 to V
CC
-55 to 125
0 to 20
Unit
V
V
V
°C
ns/V
1)V
IN
from 0.8V to 2V
2/11
74VHCT05A
Table 6: DC Specifications
Test Condition
Symbol
Parameter
V
CC
(V)
4.5 to
5.5
4.5 to
5.5
4.5
4.5
5.5
0 to
5.5
5.5
5.5
I
O
=50
µA
I
O
=8 mA
V
I
= V
IH
or V
IL
V
O
= 0V to 5.5V
V
I
= 5.5V or GND
V
I
= V
CC
or GND
One Input at 3.4V,
other input at V
CC
or GND
T
A
= 25°C
Min.
2
0.8
0.0
0.1
0.36
±0.25
±
0.1
2
1.35
Typ.
Max.
Value
-40 to 85°C
Min.
2
0.8
0.1
0.44
±
2.5
±
1.0
20
1.5
Max.
-55 to 125°C
Min.
2
0.8
0.1
0.55
±
2.5
±
1.0
20
1.5
Max.
V
V
V
µA
µA
µA
mA
Unit
V
IH
V
IL
V
OL
I
OZ
High Level Input
Voltage
Low Level Input
Voltage
Low Level Output
Voltage
High Impedance
Output Leakage
Current
Input Leakage
Current
Quiescent Supply
Current
Additional Worst
Case Supply
Current
I
I
I
CC
+I
CC
Table 7: AC Electrical Characteristics
(Input t
r
= t
f
= 3ns)
Test Condition
Symbol
Parameter
V
CC
(*)
(V)
5.0
5.0
5.0
C
L
(pF)
15
50
50
T
A
= 25°C
Min.
Typ.
3.5
4.2
6.5
Max.
4.2
5.5
9.8
Value
-40 to 85°C
Min.
1.0
1.0
1.0
Max.
4.8
6.4
11.3
-55 to 125°C
Min.
1.0
1.0
1.0
Max.
4.8
6.4
11.3
ns
ns
Unit
t
PZL
t
PLZ
Propagation Delay
Time
Propagation Delay
Time
(*) Voltage range is 5.0V
±
0.5V
Table 8: Capacitive Characteristics
Test Condition
Symbol
Parameter
Min.
C
IN
C
OUT
C
PD
Input Capacitance
Output
Capacitance
Power Dissipation
Capacitance
(note 1)
T
A
= 25°C
Typ.
6
8
6
Max.
10
Value
-40 to 85°C
Min.
Max.
10
-55 to 125°C
Min.
Max.
10
pF
pF
pF
Unit
1) C
PD
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. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/6 (per gate)
3/11
74VHCT05A
Table 9: Dynamic Switching Characteristics
Test Condition
Symbol
Parameter
V
CC
(V)
5.0
T
A
= 25°C
Min.
Typ.
0.4
-0.8
C
L
= 50 pF
2.0
-0.4
V
Max.
0.8
Value
-40 to 85°C
Min.
Max.
-55 to 125°C
Min.
Max.
Unit
V
OLP
V
OLV
V
IHD
V
ILD
Dynamic Low
Voltage Quiet
Output (note 1, 2)
Dynamic High
Voltage Input
(note 1, 3)
Dynamic Low
Voltage Input
(note 1, 3)
5.0
5.0
0.8
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.0V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.0V. Inputs under test switching: 3.0V to threshold (V
ILD
), 0V to threshold
(V
IHD
), f=1MHz.
Figure 3: Test Circuit
C
L
=15/50pF or equivalent (includes jig and probe capacitance)
R
L
= R
1
= 1KΩ or equivalent
R
T
= Z
OUT
of pulse generator (typically 50Ω)
4/11
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