FAIRCHILD 74ACTQ153PC

Revised May 1999
74ACTQ153
Quiet Series Dual 4-Input Multiplexer
General Description
Features
The ACTQ153 is a high-speed dual 4-input multiplexer with
common select inputs and individual enable inputs for each
section. It can select two lines of data from four sources.
The two buffered outputs present data in the true (noninverted) form. In addition to multiplexer operation, the
ACTQ153 can act as a function generator and generate
any two functions of three variables.
■ Outputs source/sink 24 mA
■ ACTQ153 has TTL-compatible inputs
■ Guaranteed simultaneous switching noise level and
dynamic threshold performance
■ Guaranteed pin-to-pin skew AC performance
■ Improved latch-up immunity
Ordering Code:
Order Number
Package Number
Package Description
74ACTQ153SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74ACTQ153PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
Description
I0a - 13a
Side A Data Inputs
I0b - 13b
Side B Data Inputs
S0 , S1
Common Select Inputs
Ea
Side A Enable Input
Eb
Side B Enable Input
Za
Side A Output
Zb
Side B Output
FACT, FACT Quiet Series, and GTO are trademarks of Fairchild Semiconductor Corporation.
© 1999 Fairchild Semiconductor Corporation
DS010244.prf
www.fairchildsemi.com
74ACTQ153 Quiet Series Dual 4-Input Multiplexer
July 1990
74ACTQ153
Functional Description
Truth Table
The ACTQ153 is a dual 4-input multiplexer. It can select
two bits of data from up to four sources under the control of
the common Select inputs (S0, S1). The two 4-input multiplexer circuits have individual active-LOW Enables (Ea, Eb)
which can be used to strobe the outputs independently.
When the Enables (Ea, Eb) are HIGH, the corresponding
outputs (Az, Zb) are forced LOW. The ACTQ153 is the logic
implementation of a 2-pole, 4-position switch, where the
position of the switch is determined by the logic levels supplied to the Select inputs. The logic equations for the outputs are shown below.
Select
Inputs
Inputs (a or b)
Outputs
S0
S1
E
I0
I1
I2
I3
X
X
H
X
X
X
X
Z
L
L
L
L
L
X
X
X
L
L
L
L
H
X
X
X
H
H
L
L
X
L
X
X
L
H
H
L
L
X
H
X
X
Za = Ea • (I0a • S1 • S0 + I1a • S1 • S0 +
I2a • S1 •S0 + I3a • S1 • S0)
L
H
L
X
X
L
X
L
L
H
L
X
X
H
X
H
Zb = Eb • (I0b • S1 • S0 • I1b • S1 • S0 +
I2b • S1 • S0 +I3b • S1 • S0)
H
H
L
X
X
X
L
L
H
H
L
X
X
X
H
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
www.fairchildsemi.com
2
Recommended Operating
Conditions
−0.5V to +7.0V
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
−20 mA
VI = VCC + 0.5V
+20 mA
Supply Voltage (VCC)
−0.5V to VCC + 0.5V
DC Input Voltage (VI)
4.5V to 5.5V
Input Voltage (VI)
0V to VCC
Output Voltage (VO)
0V to VCC
−40°C to +85°C
Operating Temperature (TA)
Minimum Input Edge Rate ∆V/∆t
DC Output Diode Current (IOK)
VO = −0.5V
−20 mA
VO = VCC + 0.5V
+20 mA
VIN from 0.8V to 2.0V
VCC @ 4.5V, 5.5V
−0.5V to VCC + 0.5V
DC Output Voltage (VO)
125 mV/ns
DC Output Source
±50 mA
or Sink Current (IO)
DC VCC or Ground Current
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power
supply, temperature, and output/input loading variables. Fairchild does not
recommend operation of FACT circuits outside databook specifications.
±50 mA
per Output Pin (ICC or IGND )
−65°C to +150°C
Storage Temperature (TSTG)
±300 mA
DC Latch-Up Source or Sink Current
Junction Temperature (TJ)
PDIP
140°C
DC Electrical Characteristics
Symbol
VIH
VIL
VOH
Parameter
TA = +25°C
VCC
(V)
TA = −40°C to +85°C
Typ
Guaranteed Limits
Minimum HIGH Level
4.5
1.5
2.0
2.0
Input Voltage
5.5
1.5
2.0
2.0
Maximum LOW Level
4.5
1.5
0.8
0.8
Input Voltage
5.5
1.5
0.8
0.8
Minimum HIGH Level
4.5
4.49
4.4
4.4
Output Voltage
5.5
5.49
5.4
5.4
3.86
3.76
Units
V
V
V
Conditions
VOUT = 0.1V
or VCC − 0.1V
VOUT = 0.1V
or VCC − 0.1V
IOUT = −50 µA
VIN = VIL or VIH
4.5
5.5
VOL
V
IOH = −24 mA
IOH = −24 mA (Note 2)
4.86
4.76
Maximum LOW Level
4.5
0.001
0.1
0.1
Output Voltage
5.5
0.001
0.1
0.1
4.5
0.36
0.44
5.5
0.36
0.44
5.5
±0.1
±1.0
µA
VI = VCC, GND
1.5
µA
VI = VCC − 2.1V
V
IOUT = 50 µA
VIN = VIL or VIH
IIN
Maximum Input
Leakage Current
ICCT
Maximum
ICC/Input
5.5
0.6
V
IOL = 24 mA
IOL = 24 mA (Note 2)
IOLD
Minimum Dynamic
5.5
75
mA
VOLD = 1.65V Max
IOHD
Output Current (Note 3)
5.5
−75
mA
VOHD = 3.85V Min
ICC
Maximum Quiescent
80.0
µA
Supply Current
VOLP
Maximum HIGH Level
Output Noise
VOLV
Maximum LOW Level
Output Noise
VIHD
Minimum HIGH Level
Dynamic Input Voltage
VILD
Maximum LOW Level
Dynamic Input Voltage
5.5
8.0
VIN = VCC
or GND
Figure 1Figure 2
5.0
1.1
1.5
V
5.0
−0.6
−1.2
V
Figure 1Figure 2
5.0
1.9
2.2
V
(Note 4)(Note 6)
5.0
1.2
0.8
V
(Note 4)(Note 6)
(Note 4)(Note 5)
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
3
www.fairchildsemi.com
74ACTQ153
Absolute Maximum Ratings(Note 1)
74ACTQ153
DC Electrical Characteristics
(Continued)
Note 4: Worst case package.
Note 5: Max number of outputs defined as (n). Data Inputs are driven 0V to 5V. One Data Input @ VIN = GND.
Note 6: Max number of Data Inputs (n) switching. (n−1) inputs switching 0V to 5V. Input-under-test switching:
5V to threshold (V ILD), 0V to threshold (VIHD), f = 1 MHz.
AC Electrical Characteristics
Symbol
tPLH
Parameter
Propagation Delay
Sn to Zn
tPHL
Propagation Delay
Sn to Zn
tPLH
Propagation Delay
En to Zn
tPHL
Propagation Delay
En to Zn
tPLH
Propagation Delay
In to Zn
tPHL
Propagation Delay
In to Zn
VCC
TA = +25°C
(V)
CL = 50 pF
TA = −40°C to +85°C
CL = 50 pF
Min
Typ
Max
Min
Max
5.0
3.0
7.0
11.5
2.0
13.5
ns
5.0
3.0
7.0
11.5
2.5
13.5
ns
5.0
2.0
6.5
10.5
2.0
12.5
ns
5.0
3.0
6.0
9.5
2.5
11.0
ns
5.0
2.5
5.5
9.5
2.0
11.0
ns
5.0
2.0
5.5
9.5
2.0
11.0
ns
Note 7: Voltage Range 5.0 is 5.0V ± 0.5V
Capacitance
Symbol
Parameter
Typ
Units
CIN
Input Capacitance
4.5
pF
VCC = 5.0V
CPD
Power Dissipation Capacitance
65.0
pF
VCC = 5.0V
www.fairchildsemi.com
Units
(Note 7)
4
Conditions
VOLP/VOLV and VOHP/VOHV:
The setup of a noise characteristics measurement is critical
to the accuracy and repeatability of the tests. The following
is a brief description of the setup used to measure the
noise characteristics of FACT.
• Determine the quiet output pin that demonstrates the
greatest noise levels. The worst case pin will usually be
the furthest from the ground pin. Monitor the output voltages using a 50Ω coaxial cable plugged into a standard
SMB type connector on the test fixture. Do not use an
active FET probe.
Equipment:
Hewlett Packard Model 8180A Word Generator
PC-163A Test Fixture
• Measure VOLP and VOLV on the quiet output during the
worst case transition for active and enable. Measure
VOHP and VOHV on the quiet output during the worst
case active and enable transition.
Tektronics Model 7854 Oscilloscope
Procedure:
1. Verify Test Fixture Loading: Standard Load 50 pF,
500Ω.
• Verify that the GND reference recorded on the oscilloscope has not drifted to ensure the accuracy and repeatability of the measurements.
VILD and VIHD:
2. Deskew the HFS generator so that no two channels
have greater than 150 ps skew between them. This
requires that the oscilloscope be deskewed first. It is
important to deskew the HFS generator channels
before testing. This will ensure that the outputs switch
simultaneously.
• Monitor one of the switching outputs using a 50Ω coaxial
cable plugged into a standard SMB type connector on
the test fixture. Do not use an active FET probe.
3. Terminate all inputs and outputs to ensure proper loading of the outputs and that the input levels are at the
correct voltage.
• First increase the input LOW voltage level, VIL, until the
output begins to oscillate or steps out a min of 2 ns.
Oscillation is defined as noise on the output LOW level
that exceeds VIL limits, or on output HIGH levels that
exceed VIH limits. The input LOW voltage level at which
oscillation occurs is defined as VILD.
4. Set the HFS generator to toggle all but one output at a
frequency of 1 MHz. Greater frequencies will increase
DUT heating and effect the results of the measurement.
5. Set the HFS generator input levels at 0V LOW and 3V
HIGH for ACT devices and 0V LOW and 5V HIGH for
AC devices. Verify levels with an oscilloscope.
• Next decrease the input HIGH voltage level, VIH, until
the output begins to oscillate or steps out a min of 2 ns.
Oscillation is defined as noise on the output LOW level
that exceeds VIL limits, or on output HIGH levels that
exceed VIH limits. The input HIGH voltage level at which
oscillation occurs is defined as VIHD.
• Verify that the GND reference recorded on the oscilloscope has not drifted to ensure the accuracy and repeatability of the measurements.
Note 8: VOHV and VOLP are measured with respect to ground reference.
Note 9: Input pulses have the following characteristics: f = 1 MHz, tr = 3 ns,
tf = 3 ns, skew < 150 ps.
FIGURE 1. Quiet Output Noise Voltage Waveforms
FIGURE 2. Simultaneous Switching Test Circuit
5
www.fairchildsemi.com
74ACTQ153
FACT Noise Characteristics
74ACTQ153
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
Package Number M20B
www.fairchildsemi.com
6
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N20A
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
2. A critical component in any component of a life support
1. Life support devices or systems are devices or systems
device or system whose failure to perform can be reawhich, (a) are intended for surgical implant into the
sonably expected to cause the failure of the life support
body, or (b) support or sustain life, and (c) whose failure
device or system, or to affect its safety or effectiveness.
to perform when properly used in accordance with
instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the
www.fairchildsemi.com
user.
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.
74ACTQ153 Quiet Series Dual 4-Input Multiplexer
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)