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74ACTQ153 Quiet Series Dual 4-Input Multiplexer
July 1990 Revised May 1999
74ACTQ153 Quiet Series Dual 4-Input Multiplexer
General Description
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.
Features
s Outputs source/sink 24 mA s ACTQ153 has TTL-compatible inputs s Guaranteed simultaneous switching noise level and dynamic threshold performance s Guaranteed pin-to-pin skew AC performance s Improved latch-up immunity
Ordering Code:
Order Number 74ACTQ153SC 74ACTQ153PC Package Number M20B N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 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 I0a - 13a I0b - 13b S0 , S1 Ea Eb Za Zb Description Side A Data Inputs Side B Data Inputs Common Select Inputs Side A Enable Input Side B Enable Input Side A Output Side B Output
FACTTM, FACT Quiet SeriesTM, and GTOTM are trademarks of Fairchild Semiconductor Corporation.
(c) 1999 Fairchild Semiconductor Corporation
DS010244.prf
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74ACTQ153
Functional Description
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. Za = Ea * (I0a * S1 * S0 + I1a * S1 * S0 + I2a * S1 *S0 + I3a * S1 * S0) Zb = Eb * (I0b * S1 * S0 * I1b * S1 * S0 + I2b * S1 * S0 +I3b * S1 * S0)
Truth Table
Select Inputs S0 X L L H H L L H H S1 X L L L L H H H H E H L L L L L L L L Inputs (a or b) I0 X L H X X X X X X I1 X X X L H X X X X I2 X X X X X L H X X I3 X X X X X X X L H Outputs Z L L H L H L H L 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.
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74ACTQ153
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) DC Input Diode Current (IIK) VI = -0.5V VI = VCC + 0.5V DC Input Voltage (VI) DC Output Diode Current (IOK) VO = -0.5V VO = VCC + 0.5V DC Output Voltage (VO) DC Output Source or Sink Current (IO) DC VCC or Ground Current per Output Pin (ICC or IGND ) Storage Temperature (TSTG) DC Latch-Up Source or Sink Current Junction Temperature (TJ) PDIP 140C 50 mA -65C to +150C 300 mA 50 mA -20 mA +20 mA -0.5V to VCC + 0.5V -20 mA +20 mA -0.5V to VCC + 0.5V -0.5V to +7.0V
Recommended Operating Conditions
Supply Voltage (VCC) Input Voltage (VI) Output Voltage (VO) Operating Temperature (TA) Minimum Input Edge Rate V/t VIN from 0.8V to 2.0V VCC @ 4.5V, 5.5V 125 mV/ns 4.5V to 5.5V 0V to VCC 0V to VCC -40C to +85C
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 FACTTM circuits outside databook specifications.
DC Electrical Characteristics
Symbol VIH VIL VOH Parameter Minimum HIGH Level Input Voltage Maximum LOW Level Input Voltage Minimum HIGH Level Output Voltage VCC (V) 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 VOL Maximum LOW Level Output Voltage 4.5 5.5 4.5 5.5 IIN ICCT IOLD IOHD ICC VOLP VOLV VIHD VILD Maximum Input Leakage Current Maximum ICC/Input Minimum Dynamic Output Current (Note 3) Maximum Quiescent Supply Current Maximum HIGH Level Output Noise Maximum LOW Level Output Noise Minimum HIGH Level Dynamic Input Voltage Maximum LOW Level Dynamic Input Voltage 5.5 5.5 5.5 5.5 5.5 5.0 5.0 5.0 5.0 1.1 -0.6 1.9 1.2 8.0 1.5 -1.2 2.2 0.8 0.6 0.001 0.001 Typ 1.5 1.5 1.5 1.5 4.49 5.49 2.0 0.8 0.8 4.4 5.4 3.86 4.86 0.1 0.1 0.36 0.36 0.1 TA = +25C 2.0 TA = -40C to +85C Guaranteed Limits 2.0 2.0 0.8 0.8 4.4 5.4 3.76 4.76 0.1 0.1 0.44 0.44 1.0 1.5 75 -75 80.0 A A mA mA A V V V V V Units V V V Conditions VOUT = 0.1V or VCC - 0.1V VOUT = 0.1V or VCC - 0.1V IOUT = -50 A VIN = VIL or VIH V IOH = -24 mA IOH = -24 mA (Note 2) IOUT = 50 A VIN = VIL or VIH V IOL = 24 mA IOL = 24 mA (Note 2) VI = VCC, GND VI = VCC - 2.1V VOLD = 1.65V Max VOHD = 3.85V Min VIN = VCC or GND Figure 1Figure 2 (Note 4)(Note 5) Figure 1Figure 2 (Note 4)(Note 6) (Note 4)(Note 6)
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.
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74ACTQ153
DC Electrical Characteristics
Note 4: Worst case package.
(Continued)
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
VCC Symbol Parameter (V) (Note 7) tPLH tPHL tPLH tPHL tPLH tPHL Propagation Delay Sn to Zn Propagation Delay Sn to Zn Propagation Delay En to Zn Propagation Delay En to Zn Propagation Delay In to Zn Propagation Delay In to Zn
Note 7: Voltage Range 5.0 is 5.0V 0.5V
TA = +25C CL = 50 pF Min 3.0 3.0 2.0 Typ 7.0 7.0 6.5 Max 11.5 11.5 10.5
TA = -40C to +85C CL = 50 pF Min 2.0 2.5 2.0 Max 13.5 13.5 12.5 ns ns ns Units
5.0 5.0 5.0
5.0 5.0 5.0
3.0 2.5 2.0
6.0 5.5 5.5
9.5 9.5 9.5
2.5 2.0 2.0
11.0 11.0 11.0
ns ns ns
Capacitance
Symbol CIN CPD Parameter Input Capacitance Power Dissipation Capacitance Typ 4.5 65.0 Units pF pF VCC = 5.0V VCC = 5.0V Conditions
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74ACTQ153
FACT Noise Characteristics
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. Equipment: Hewlett Packard Model 8180A Word Generator PC-163A Test Fixture Tektronics Model 7854 Oscilloscope Procedure: 1. Verify Test Fixture Loading: Standard Load 50 pF, 500. 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. 3. Terminate all inputs and outputs to ensure proper loading of the outputs and that the input levels are at the correct voltage. 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. VOLP/VOLV and VOHP/VOHV: * 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 50 coaxial cable plugged into a standard SMB type connector on the test fixture. Do not use an active FET probe. * 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. * Verify that the GND reference recorded on the oscilloscope has not drifted to ensure the accuracy and repeatability of the measurements. VILD and VIHD: * Monitor one of the switching outputs using a 50 coaxial cable plugged into a standard SMB type connector on the test fixture. Do not use an active FET probe. * 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. * 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
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74ACTQ153
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Package Number M20B
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74ACTQ153 Quiet Series Dual 4-Input Multiplexer
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
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.

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