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| MC74AC253 MC74ACT253 Dual 4 Input Multiplexer with 3 State Outputs The MC74AC253/74ACT253 is a dual 4-input multiplexer with 3-state outputs. It can select two bits of data from four sources using common select inputs. The outputs may be individually switched to a high impedance state with a HIGH on the respective Output Enable (OE) inputs, allowing the outputs to interface directly with bus oriented systems. * * * * Multifunctional Capability Noninverting 3-State Outputs Outputs Source/Sink 24 mA ACT253 Has TTL Compatible Inputs VCC 16 OEb 15 S0 14 I3b 13 I2b 12 I1b 11 I0b 10 Zb 9 PIN NAMES I0a-I3a I0b-I3b S0, S1 OEa OEb Za, Zb Side A Data Inputs Side B Data Inputs Common Select Inputs Side A Output Enable Input Side B Output Enable Input 3-State Outputs N SUFFIX CASE 648-08 PLASTIC DUAL 4-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS 1 OEa 2 S1 3 I3a 4 I2a 5 I1a 6 I0a 7 Za 8 GND D SUFFIX CASE 751B-05 PLASTIC TRUTH TABLE Select Inputs S0 X L L H H L L H H S1 X L L L L H H H H I0 X L H X X X X X X Data Inputs 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 Output Enable OE H L L L L L L L L Outputs Z Z L H L H L H L H OEa I0a I1a I2a I3a I0b I1b I2b I3b OEb S0 S1 Za Zb LOGIC SYMBOL Address inputs S0 and S1 are common to both sections. H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance FACT DATA 5-1 MC74AC253 MC74ACT253 FUNCTIONAL DESCRIPTION The MC74AC253/74ACT253 contains two identical 4-input multiplexers with 3-state outputs. They select two bits from four sources selected by common Select inputs (S0, S1). The 4-input multiplexers have individual Output Enable (OEa, OEb) inputs which, when HIGH, force the outputs to a high impedance (High Z) state. This device 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 two select inputs. The logic equations for the outputs are shown: Za = OEa*(I0a*S1*S0+I1a*S1*S0+ I2a*S1*S0+I3a*S1*S0) Zb = OEb*(I0b*S1*S0+I1b*S1*S0+ I2b*S1*S0+I3b*S1*S0) If the outputs of 3-state devices are tied together, all but one device must be in the high impedance state to avoid high currents that would exceed the maximum ratings. Designers should ensure that Output Enable signals to 3-state devices whose outputs are tied together are designed so that there is no overlap. LOGIC DIAGRAM OEb I3b I2b I1b I0b S0 S1 I3a I2a I1a I0a OEa Zb Za Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. FACT DATA 5-2 MC74AC253 MC74ACT253 MAXIMUM RATINGS* Symbol VCC Vin Vout Iin Iout ICC Tstg Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC VCC or GND Current per Output Pin Storage Temperature Value -0.5 to +7.0 -0.5 to VCC +0.5 -0.5 to VCC +0.5 20 50 50 -65 to +150 Unit V V V mA mA mA C * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. RECOMMENDED OPERATING CONDITIONS Symbol VCC Vin, Vout Supply Voltage DC Input Voltage, Output Voltage (Ref. to GND) VCC @ 3.0 V tr, tf Input Rise and Fall Time (Note 1) AC Devices except Schmitt Inputs VCC @ 4.5 V VCC @ 5.5 V tr, tf TJ TA IOH IOL Input Rise and Fall Time (Note 2) ACT Devices except Schmitt Inputs Junction Temperature (PDIP) Operating Ambient Temperature Range Output Current -- High Output Current -- Low -40 25 VCC @ 4.5 V VCC @ 5.5 V Parameter AC ACT Min 2.0 4.5 0 150 40 25 10 ns/V 8.0 140 85 -24 24 C C mA mA ns/V Typ 5.0 5.0 Max 6.0 5.5 VCC V Unit V 1. Vin from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times. 2. Vin from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times. FACT DATA 5-3 MC74AC253 MC74ACT253 DC CHARACTERISTICS 74AC Symbol Parameter VCC (V) TA = +25C Typ VIH Minimum High Level Input Voltage 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 VOL Maximum Low Level Output Voltage 3.0 4.5 5.5 3.0 4.5 5.5 IIN IOZ Maximum Input Leakage Current Maximum 3-State Current Minimum Dynamic Output Current Maximum Quiescent Supply Current 5.5 0.002 0.001 0.001 1.5 2.25 2.75 1.5 2.25 2.75 2.99 4.49 5.49 74AC TA = -40C to +85C Unit Conditions Guaranteed Limits 2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.56 3.86 4.86 0.1 0.1 0.1 0.36 0.36 0.36 0.1 2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.46 3.76 4.76 0.1 0.1 0.1 0.44 0.44 0.44 1.0 V VOUT = 0.1 V or VCC - 0.1 V VOUT = 0.1 V or VCC - 0.1 V IOUT = -50 A V *VIN = VIL or VIH -12 mA IOH -24 mA -24 mA IOUT = 50 A V *VIN = VIL or VIH 12 mA IOL 24 mA 24 mA VI = VCC, GND VI (OE) = VIL, VIH VI = VCC, GND VO = VCC, GND VOLD = 1.65 V Max VOHD = 3.85 V Min VIN = VCC or GND VIL Maximum Low Level Input Voltage V VOH Minimum High Level Output Voltage V V A 5.5 5.5 5.5 5.5 0.5 5.0 75 -75 A mA mA A IOLD IOHD ICC 8.0 80 * All outputs loaded; thresholds on input associated with output under test. Maximum test duration 2.0 ms, one output loaded at a time. Note: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC. FACT DATA 5-4 MC74AC253 MC74ACT253 AC CHARACTERISTICS (For Figures and Waveforms -- See Section 3) 74AC Symbol Parameter VCC* (V) Min tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Sn to Zn Propagation Delay Sn to Zn Propagation Delay In to Zn Propagation Delay In to Zn Output Enable Time Output Enable Time Output Disable Time Output Disable Time 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 2.0 2.0 2.5 2.0 1.5 1.5 2.0 1.5 1.5 1.5 1.5 1.5 2.0 2.0 1.5 1.5 TA = +25C CL = 50 pF Typ Max 15.5 11.0 16.0 11.5 14.5 10.0 13.0 9.5 8.0 6.0 8.0 6.0 9.5 8.0 8.0 7.0 74AC TA = -40C to +85C CL = 50 pF Min 2.0 1.5 2.0 1.5 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 1.5 1.5 1.0 1.0 Max 17.5 12.5 18.0 13.0 17.0 11.5 15.0 11.0 8.5 6.5 9.0 7.0 10.0 8.5 9.0 7.5 ns ns ns ns ns ns ns ns 3-6 3-6 3-5 3-5 3-7 3-8 3-7 3-8 Unit Fig. No. * Voltage Range 3.3 V is 3.3 V 0.3 V. Voltage Range 5.0 V is 5.0 V 0.5 V. FACT DATA 5-5 MC74AC253 MC74ACT253 DC CHARACTERISTICS 74ACT Symbol Parameter VCC (V) TA = +25C Typ VIH VIL VOH Minimum High Level Input Voltage Maximum Low Level Input Voltage Minimum High Level Output Voltage 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 IOZ Maximum Input Leakage Current Additional Max. ICC/Input Maximum 3-State Current Minimum Dynamic Output Current Maximum Quiescent Supply Current 5.5 5.5 5.5 5.5 5.5 5.5 8.0 0.6 0.5 0.001 0.001 1.5 1.5 1.5 1.5 4.49 5.49 74ACT TA = -40C to +85C Unit Conditions Guaranteed Limits 2.0 2.0 0.8 0.8 4.4 5.4 3.86 4.86 0.1 0.1 0.36 0.36 0.1 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 5.0 75 -75 80 V V V VOUT = 0.1 V or VCC - 0.1 V VOUT = 0.1 V or VCC - 0.1 V IOUT = -50 A *VIN = VIL or VIH -24 mA IOH -24 mA IOUT = 50 A *VIN = VIL or VIH 24 mA IOL 24 mA VI = VCC, GND VI = VCC - 2.1 V VI (OE) = VIL, VIH VI = VCC, GND VO = VCC, GND VOLD = 1.65 V Max VOHD = 3.85 V Min VIN = VCC or GND V V V A mA A mA mA A IOLD IOHD ICC * All outputs loaded; thresholds on input associated with output under test. Maximum test duration 2.0 ms, one output loaded at a time. FACT DATA 5-6 MC74AC253 MC74ACT253 AC CHARACTERISTICS (For Figures and Waveforms -- See Section 3) 74ACT Symbol Parameter VCC* (V) Min tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Sn to Zn Propagation Delay Sn to Zn Propagation Delay In to Zn Propagation Delay In to Zn Output Enable Time Output Enable Time Output Disable Time Output Disable Time 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 2.0 3.0 2.5 3.5 2.0 2.0 3.0 2.5 TA = +25C CL = 50 pF Typ Max 11.5 13.0 10.0 11.0 7.5 8.0 9.5 7.5 74ACT TA = -40C to +85C CL = 50 pF Min 2.0 2.5 2.0 3.0 1.5 1.5 2.5 2.0 Max 13.0 14.5 11.0 12.5 8.5 9.0 10.0 8.5 ns ns ns ns ns ns ns ns 3-6 3-6 3-5 3-5 3-7 3-8 3-7 3-8 Unit Fig. No. * Voltage Range 5.0 V is 5.0 V 0.5 V. CAPACITANCE Symbol CIN CPD Input Capacitance Power Dissipation Capacitance Parameter Value Typ 4.5 50 Unit pF pF Test Conditions VCC = 5.0 V VCC = 5.0 V FACT DATA 5-7 MC74AC253 MC74ACT253 OUTLINE DIMENSIONS N SUFFIX PLASTIC DIP PACKAGE CASE 648-08 ISSUE R 9 -A- 16 B 1 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. DIM A B C D F G H J K L M S INCHES MIN MAX 0.740 0.770 0.250 0.270 0.145 0.175 0.015 0.021 0.040 0.70 0.100 BSC 0.050 BSC 0.008 0.015 0.110 0.130 0.295 0.305 0_ 10 _ 0.020 0.040 MILLIMETERS MIN MAX 18.80 19.55 6.35 6.85 3.69 4.44 0.39 0.53 1.02 1.77 2.54 BSC 1.27 BSC 0.21 0.38 2.80 3.30 7.50 7.74 0_ 10 _ 0.51 1.01 F S C L -T- H G D 16 PL SEATING PLANE K J TA M M 0.25 (0.010) M -A- D SUFFIX PLASTIC SOIC PACKAGE CASE 751B-05 ISSUE J 9 16 -B- 1 8 P 8 PL 0.25 (0.010) M B S G F NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS MIN MAX 9.80 10.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.229 0.244 0.010 0.019 K C -T- SEATING PLANE R X 45 _ M D 16 PL M J 0.25 (0.010) TB S A S DIM A B C D F G J K M P R Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters can and do vary in different applications. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA/EUROPE: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1-800-441-2447 MFAX: RMFAX0@email.sps.mot.com -TOUCHTONE (602) 244-6609 INTERNET: http://Design-NET.com JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, Toshikatsu Otsuki, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-3521-8315 HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 FACT DATA 5-8 *MC74AC253/D* MC74AC253/D |
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