54AC151 • 54ACT151 8-Input Multiplexer General Description Features The ’AC/’ACT151 is a high-speed 8-input digital multiplexer. It provides, in one package, the ability to select one line of data from up to eight sources. The ’AC/’ACT151 can be used as a universal function generator to generate any logic function of four variables. Both true and complementary outputs are provided. n n n n ICC reduced by 50% Outputs source/sink 24 mA ’ACT151 has TTL-compatible inputs Standard Microcircuit Drawing (SMD) — ’AC151: 5962-87691 — ’ACT151: 5962-88756 Ordering Code: Logic Symbols IEEE/IEC DS100270-1 DS100270-6 Pin Names Description I0–I7 Data Inputs S0–S2 Select Inputs E Enable Input Z Data Output Z Inverted Data Output FACT ® is a registered trademark of Fairchild Semiconductor Corporation. © 1998 National Semiconductor Corporation DS100270 www.national.com 54AC151 • 54ACT151 8-Input Multiplexer August 1998 Connection Diagrams Pin Assignment for DIP and Flatpak Pin Assignment for LCC DS100270-2 DS100270-3 Functional Description Truth Table Inputs The ’AC/’ACT151 is a logic implementation of a single pole, 8-position switch with the switch position controlled by the state of three Select inputs, S0, S1, S2. Both true and complementary outputs are provided. The Enable input (E) is active LOW. When it is not activated, the complementary output is HIGH and the true output is LOW regardless of all other inputs. The logic function provided at the output is: Z = E • (I0 • S0 • S1 • S2 + I1 • S0 • S1 • S2 + Outputs E S2 S1 S0 Z H X X X H L L L L L I0 I0 L L L H I1 I1 L L H L I2 I2 L L H H I3 I3 L H L L I4 I4 L H L H I5 I5 L H H L I6 I6 L H H H I7 I7 Z I2 • S0 • S1 • S2 + I3 • S0 • S1 • S2 + I4 • S0 • S1 • S2 + I5 • S0 • S1 • S2 + I6 • S0 • S1 • S2 + I7 • S0 • S1 • S2) The ’AC/’ACT151 provides the ability, in one package to select from eight sources of data or control information. By proper manipulation of the inputs, the ’AC/’ACT151 can provide any logic function of four variables and its complement. H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial www.national.com 2 Logic Diagram DS100270-4 Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. 3 www.national.com Absolute Maximum Ratings (Note 1) Recommended Operating Conditions If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. 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) Junction Temperature (TJ) CDIP Supply Voltage (VCC) ’AC ’ACT Input Voltage (VI) Output Voltage (VO) Operating Temperature (TA) 54AC/ACT Minimum Input Edge Rate (∆V/∆t) ’AC Devices VIN from 30% to 70% of VCC VCC @ 3.3V, 4.5V, 5.5V Minimum Input Edge Rate (∆V/∆t) ’ACT Devices VIN from 0.8V to 2.0V VCC @ 4.5V, 5.5V −0.5V to +7.0V −20 mA +20 mA −0.5V to VCC + 0.5V −20 mA +20 mA −0.5V to VCC + 0.5V ± 50 mA ± 50 mA −65˚C to +150˚C 2.0V to 6.0V 4.5V to 5.5V 0V to VCC 0V to VCC −55˚C to +125˚C 125 mV/ns 125 mV/ns 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. National does not recommend operation of FACT ® circuits outside databook specifications. 175˚C DC Characteristics for ’AC Family Devices Symbol VIH VIL VOH VOL IIN Parameter VCC 54AC TA = −55˚C to +125˚C (V) Guaranteed Limits Minimum High Level 3.0 2.1 Input Voltage 4.5 3.15 5.5 3.85 Maximum Low Level 3.0 0.9 Input Voltage 4.5 1.35 5.5 1.65 Minimum High Level 3.0 2.9 Output Voltage 4.5 4.4 5.5 5.4 3.0 2.4 4.5 3.7 5.5 4.7 Maximum Low Level 3.0 0.1 Output Voltage 4.5 0.1 5.5 0.1 Maximum Input 3.0 0.50 4.5 0.50 5.5 0.50 5.5 ± 1.0 Units Conditions VOUT = 0.1V V or VCC − 0.1V V or VCC − 0.1V VOUT = 0.1V IOUT = −50 µA V (Note 2) VIN = VIL or VIH IOH = −12 mA V IOH = −24 mA IOH = −24 mA IOUT = 50 µA V (Note 2) VIN = VIL or VIH IOL = 12 mA V µA IOL = 24 mA IOL = 24 mA VI = VCC, GND Leakage Current IOLD IOHD Minimum Dynamic Output Current (Note 3) www.national.com 5.5 50 mA 5.5 −50 mA 4 VOLD = 1.65V Max VOHD = 3.85V Min DC Characteristics for ’AC Family Devices Symbol ICC Parameter Maximum Quiescent (Continued) VCC 54AC TA = −55˚C to +125˚C (V) Guaranteed Limits 5.5 80.0 Units µA Supply Current Conditions VIN = VCC or GND 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. Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC. ICC for 54AC @ 25˚C is identical to 74AC @ 25˚C DC Characteristics for ’ACT Family Devices Symbol VIH VIL VOH VOL IIN Parameter VCC 54ACT TA = −55˚C to +125˚C (V) Guaranteed Limits Minimum High Level 4.5 2.0 Input Voltage 5.5 2.0 Maximum Low Level 4.5 0.8 Input Voltage 5.5 0.8 Minimum High Level 4.5 4.4 Output Voltage 5.5 5.4 4.5 3.70 5.5 4.70 Maximum Low Level 4.5 0.1 Output Voltage 5.5 0.1 Maximum Input Units Conditions V VOUT = 0.1V V or VCC − 0.1V VOUT = 0.1V V or VCC − 0.1V IOUT = −50 µA V (Note 5) VIN = VIL or VIH IOH = −24 mA V IOH = −24 mA IOUT = 50 µA V (Note 5) VIN = VIL or VIH IOL = 24 mA 4.5 0.50 5.5 0.50 5.5 ± 1.0 µA IOL = 24 mA VI = VCC, GND 5.5 1.6 mA VI = VCC − 2.1V Leakage Current ICCT Maximum ICC/Input IOLD Minimum Dynamic 5.5 50 mA IOHD Output Current (Note 6) 5.5 −50 mA VOLD = 1.65V Max VOHD = 3.85V Min ICC Maximum Quiescent 5.5 80.0 µA VIN = VCC Supply Current or GND Note 5: All outputs loaded; thresholds on input associated with output under test. Note 6: Maximum test duration 2.0 ms, one output loaded at a time. Note 7: ICC for 54ACT @ 25˚C is identical to 74ACT @ 25˚C. AC Electrical Characteristics Symbol Parameter 54AC TA = −55˚C to +125˚C CL = 50 pF VCC (V) (Note 8) tPLH Min Fig. No. Max Propagation Delay 3.3 1.0 22.0 Sn to Z or Z 5.0 1.0 15.5 5 Units ns www.national.com AC Electrical Characteristics Symbol Parameter (Continued) 54AC TA = −55˚C to +125˚C CL = 50 pF VCC (V) (Note 8) tPHL tPLH tPHL tPLH tPHL Min Units Fig. No. Max Propagation Delay 3.3 1.0 22.0 Sn to Z or Z 5.0 1.0 15.5 Propagation Delay 3.3 1.0 15.5 E to Z or Z 5.0 1.0 12.0 Propagation Delay 3.3 1.0 15.5 E to Z or Z 5.0 1.0 12.0 Propagation Delay 3.3 1.0 16.0 In to Z or Z 5.0 1.0 12.0 Propagation Delay 3.3 1.0 18.0 In to Z or Z 5.0 1.0 13.0 VCC 54ACT TA = −55˚C to +125˚C CL = 50 pF ns ns ns ns ns Note 8: Voltage Range 3.3 is 3.3V ± 0.3V Voltage Range 5.0 is 5.0V ± 0.5V AC Electrical Characteristics Symbol tPLH Parameter Propagation Delay (V) Units (Note 9) Min Max 5.0 1.0 19.5 ns 5.0 1.0 20.0 ns 5.0 1.0 19.5 ns 5.0 1.0 20.0 ns 5.0 1.0 12.0 ns 5.0 1.0 12.5 ns 5.0 1.0 12.0 ns 5.0 1.0 12.5 ns 5.0 1.0 15.0 ns 5.0 1.0 16.0 ns 5.0 1.0 15.0 ns 5.0 1.0 16.0 ns Sn to Z tPHL Propagation Delay Sn to Z tPLH Propagation Delay Sn to Z tPHL Propagation Delay Sn to Z tPLH Propagation Delay E to Z tPHL Propagation Delay E to Z tPLH Propagation Delay E to Z tPHL Propagation Delay E to Z tPLH Propagation Delay In to Z tPHL Propagation Delay In to Z tPLH Propagation Delay In to Z tPHL Propagation Delay In to Z Note 9: Voltage Range 5.0 is 5.0V ± 0.5V www.national.com 6 Fig. No. Capacitance Symbol CIN CPD Typ Units Input Capacitance Parameter 4.5 pF Power Dissipation 70.0 pF Conditions VCC = OPEN VCC = 5.0V Capacitance 7 www.national.com 8 Physical Dimensions inches (millimeters) unless otherwise noted 20 Terminal Ceramic Leadless Chip Carrier (L) NS Package Number E20A 16 Lead Ceramic Dual-In-Line Package (D) NS Package Number J16A 9 www.national.com 54AC151 • 54ACT151 8-Input Multiplexer Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16 Lead Ceramic Flatpak (F) NS Package Number W16A LIFE SUPPORT POLICY NATIONAL’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 NATIONAL 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 sysdevice or system whose failure to perform can be reatems which, (a) are intended for surgical implant into sonably expected to cause the failure of the life support the body, or (b) support or sustain life, and whose faildevice or system, or to affect its safety or effectiveness. ure 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 user. 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