STMICROELECTRONICS 74VHCT139ATTR

74VHCT139A
DUAL 2 TO 4 DECODER/DEMULTIPLEXER
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HIGH SPEED: tPD = 5 ns (TYP.) at VCC = 5V
LOW POWER DISSIPATION:
ICC = 2 µA (MAX.) at TA=25°C
COMPATIBLE WITH TTL OUTPUTS:
VIH = 2V (MIN.), VIL = 0.8V (MAX)
POWER DOWN PROTECTION ON INPUTS
& OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 8 mA (MIN)
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
OPERATING VOLTAGE RANGE:
VCC(OPR) = 4.5V to 5.5V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 139
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74VHCT139A is an advanced high-speed
CMOS DUAL 2 TO 4 LINE DECODER/
DEMULTIPLEXER fabricated with sub-micron
silicon gate and double-layer metal wiring C2MOS
technology.
The active low enable input can be used for gating
or as a data input for demultiplexing applications.
When the enable input is held high, all four outputs
are high independently of the other inputs.
SOP
TSSOP
Table 1: Order Codes
PACKAGE
T&R
SOP
TSSOP
74VHCT139AMTR
74VHCT139ATTR
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 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. 3
1/12
74VHCT139A
Figure 2: Input Equivalent Circuit
Table 2: Pin Description
PIN N°
SYMBOL
1, 15
2, 3
4, 5, 6, 7
12, 11, 10, 9
14, 13
8
16
1G, 2G
1A, 1B
1Y0 to 1Y3
2Y0 to 2Y3
2A, 2B
GND
VCC
NAME AND FUNCTION
Enable Inputs
Address Inputs
Outputs
Outputs
Address Inputs
Ground (0V)
Positive Supply Voltage
Table 3: Truth Table
INPUTS
OUTPUTS
ENABLE
SELECT
G
B
A
Y0
Y1
Y2
Y3
H
L
L
L
L
X
L
L
H
H
X
L
H
L
H
H
L
H
H
H
H
H
L
H
H
H
H
H
L
H
H
H
H
H
L
X : Don’t Care
Figure 3: Logic Diagram
This logic diagram has not be used to estimate propagation delays
2/12
74VHCT139A
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 (see note 1)
-0.5 to +7.0
V
VO
DC Output Voltage (see note 2)
-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
1) VCC = 0V
2) High or Low State
Table 5: Recommended Operating Conditions
Symbol
VCC
Parameter
Supply Voltage
Value
Unit
4.5 to 5.5
V
0 to 5.5
V
VI
Input Voltage
VO
Output Voltage (see note 1)
0 to 5.5
V
VO
Output Voltage (see note 2)
0 to VCC
V
Top
Operating Temperature
dt/dv
Input Rise and Fall Time (see note 3) (VCC = 5.0 ± 0.5V)
-55 to 125
°C
0 to 20
ns/V
1) VCC = 0V
2) High or Low State
3) VIN from 0.8V to 2V
3/12
74VHCT139A
Table 6: DC Specifications
Test Condition
Symbol
VIH
VIL
VOH
VOL
II
ICC
+ICC
IOPD
Parameter
TA = 25°C
VCC
(V)
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
4.5 to
5.5
4.5 to
5.5
Value
Min.
Typ.
Max.
2
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
2
0.8
Max.
2
0.8
Unit
V
0.8
V
4.5
IO=-50 µA
4.4
4.5
IO=-8 mA
3.94
Low Level Output
Voltage
4.5
IO=50 µA
0.1
0.1
0.1
4.5
IO=8 mA
0.36
0.44
0.55
Input Leakage
Current
Quiescent Supply
Current
Additional Worst
Case Supply
Current
0 to
5.5
VI = 5.5V or GND
± 0.1
± 1.0
± 1.0
µA
5.5
VI = VCC or GND
2
20
20
µA
5.5
One Input at 3.4V,
other input at VCC
or GND
1.35
1.5
1.5
mA
0
VOUT = 5.5V
0.5
5.0
5.0
µA
Output Leakage
Current
4.5
0.0
4.4
4.4
3.8
3.7
V
V
Table 7: AC Electrical Characteristics (Input tr = tf = 3ns)
Test Condition
Symbol
Parameter
VCC (*) CL
(V)
(pF)
Value
TA = 25°C
Min.
-40 to 85°C
-55 to 125°C
Typ.
Max.
Min.
Max.
Min.
Max.
Unit
tPLH
tPHL
Propagation Delay
Time A, B, to Y
5.0
5.0
15
50
5.0
6.5
7.2
9.2
1.0
1.0
8.5
10.5
1.0
1.0
8.5
10.5
ns
tPLH
tPHL
Propagation Delay
Time G to Y
5.0
5.0
15
50
4.4
5.9
6.3
8.3
1.0
1.0
7.5
9.5
1.0
1.0
7.5
9.5
ns
(*) Voltage range is 5.0V ± 0.5V
Table 8: Capacitive Characteristics
Test Condition
Symbol
Parameter
Value
TA = 25°C
Min.
Typ.
Max.
10
CIN
Input Capacitance
6
CPD
Power Dissipation
Capacitance
(note 1)
18
-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/2 (per
decoder)
4/12
74VHCT139A
Figure 4: Test Circuit
CL =15/50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
Figure 5: Waveform - Propagation Delays For Inverting Outputs (f=1MHz; 50% duty cycle)
5/12
74VHCT139A
Figure 6: Waveform - Propagation Delays For Non-inverting Outputs (f=1MHz; 50% duty cycle)
6/12
74VHCT139A
SO-16 MECHANICAL DATA
DIM.
mm.
MIN.
TYP
A
a1
inch
MAX.
MIN.
TYP.
1.75
0.1
0.068
0.25
a2
MAX.
0.004
0.010
1.64
0.063
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45° (typ.)
D
9.8
10
0.385
0.393
E
5.8
6.2
0.228
0.244
e
1.27
e3
0.050
8.89
0.350
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
S
0.62
0.024
8° (max.)
0016020D
7/12
74VHCT139A
TSSOP16 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
0.0079
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
0080338D
8/12
74VHCT139A
Tape & Reel SO-16 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
6.45
6.65
0.254
0.262
Bo
10.3
10.5
0.406
0.414
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
9/12
74VHCT139A
Tape & Reel TSSOP16 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
10/12
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
74VHCT139A
Table 9: Revision History
Date
Revision
16-Dec-2004
3
Description of Changes
Order Codes Revision - pag. 1.
11/12
74VHCT139A
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