54AC151/54ACT151 8-Input Multiplexer General Description 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 'ACT151 has TTL-compatible inputs n Standard Microcircuit Drawing (SMD) -- 'AC151: 5962-87691 -- 'ACT151: 5962-88756 n 54AC151 now qualified to 300Krad RHA designation, refer to the SMD for more information Features n ICC reduced by 50% n Outputs source/sink 24 mA Logic Symbols IEEE/IEC 10027001 10027006 Pin Names Description I0-I7 Data Inputs S0-S2 Select Inputs E Enable Input Z Data Output Z Inverted Data Output FACT (R) is a registered trademark of Fairchild Semiconductor Corporation. (c) 2003 National Semiconductor Corporation DS100270 www.national.com 54AC151/54ACT151 8-Input Multiplexer July 2003 54AC151/54ACT151 Connection Diagrams Pin Assignment for DIP and Flatpak Pin Assignment for LCC 10027002 10027003 Truth Table Inputs Functional Description Outputs E S2 S1 S0 Z 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 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 + 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 54AC151/54ACT151 Logic Diagram 10027004 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 54AC151/54ACT151 Absolute Maximum Ratings Recommended Operating Conditions (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (VCC) Supply Voltage (VCC) -0.5V to +7.0V DC Input Diode Current (IIK) 'AC 2.0V to 6.0V 'ACT 4.5V to 5.5V VI = -0.5V -20 mA Input Voltage (VI) VI = VCC + 0.5V +20 mA Output Voltage (VO) DC Input Voltage (VI) 0V to VCC Operating Temperature (TA) -0.5V to VCC + 0.5V 54AC/ACT -55C to +125C Minimum Input Edge Rate (V/t) DC Output Diode Current (IOK) VO = -0.5V -20 mA 'AC Devices VO = VCC + 0.5V +20 mA VIN from 30% to 70% of VCC DC Output Voltage (VO) 0V to VCC VCC @ 3.3V, 4.5V, 5.5V -0.5V to VCC + 0.5V 125 mV/ns Minimum Input Edge Rate (V/t) 'ACT Devices DC Output Source VIN from 0.8V to 2.0V 50 mA or Sink Current (IO) VCC @ 4.5V, 5.5V DC VCC or Ground Current 50 mA per Output Pin (ICC or IGND) Storage Temperature (TSTG) 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 (R) circuits outside databook specifications. -65C to +150C Junction Temperature (TJ) CDIP 125 mV/ns 175C DC Characteristics for 'AC Family Devices 54AC Symbol VIH VIL VOH Parameter VCC TA = -55C to +125C (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 Units Conditions VOUT = 0.1V V or VCC - 0.1V V or VCC - 0.1V VOUT = 0.1V IOUT = -50 A V (Note 2) VIN = VIL or VIH VOL 3.0 2.4 4.5 3.7 IOH = -12 mA V IOH = -24 mA 5.5 4.7 IOH = -24 mA Maximum Low Level 3.0 0.1 IOUT = 50 A Output Voltage 4.5 0.1 5.5 0.1 V (Note 2) VIN = VIL or VIH IIN Maximum Input 3.0 0.50 4.5 0.50 5.5 0.50 5.5 1.0 Leakage Current www.national.com 4 IOL = 12 mA V IOL = 24 mA A VI = VCC, GND IOL = 24 mA (Continued) 54AC Symbol IOLD Parameter VCC TA = -55C to +125C (V) Guaranteed Limits Units Conditions 5.5 50 mA VOLD = 1.65V Max IOHD Minimum Dynamic Output Current (Note 3) 5.5 -50 mA VOHD = 3.85V Min ICC Maximum Quiescent 5.5 80.0 A VIN = VCC Supply Current 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 @ 25C is identical to 74AC @ 25C DC Characteristics for 'ACT Family Devices 54ACT Symbol VIH VIL VOH Parameter VCC TA = -55C to +125C (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 Units V Conditions VOUT = 0.1V or VCC - 0.1V V VOUT = 0.1V or VCC - 0.1V V IOUT = -50 A (Note 5) VIN = VIL or VIH VOL 4.5 3.70 5.5 4.70 Maximum Low Level 4.5 0.1 Output Voltage 5.5 0.1 V IOH = -24 mA IOH = -24 mA V IOUT = 50 A (Note 5) VIN = VIL or VIH IIN Maximum Input 4.5 0.50 5.5 0.50 V IOL = 24 mA 5.5 1.0 A VI = VCC, GND 5.5 1.6 mA VI = VCC - 2.1V IOL = 24 mA Leakage Current ICCT Maximum ICC/Input IOLD Minimum Dynamic 5.5 50 mA VOLD = 1.65V Max IOHD Output Current (Note 6) 5.5 -50 mA VOHD = 3.85V Min ICC Maximum Quiescent 5.5 80.0 A 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 @ 25C is identical to 74ACT @ 25C. 5 www.national.com 54AC151/54ACT151 DC Characteristics for 'AC Family Devices 54AC151/54ACT151 AC Electrical Characteristics 54AC Symbol tPLH tPHL tPLH tPHL tPLH tPHL Parameter VCC TA = -55C to +125C (V) CL = 50 pF (Note 8) Min 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 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 Units Fig. No. ns 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 54ACT Symbol tPLH Parameter Propagation Delay VCC TA = -55C to +125C (V) CL = 50 pF 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. 54AC151/54ACT151 Capacitance Symbol CIN CPD Typ Units Input Capacitance Parameter 4.5 pF VCC = OPEN Conditions Power Dissipation 70.0 pF VCC = 5.0V Capacitance 7 www.national.com 54AC151/54ACT151 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 www.national.com 8 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 AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. 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