MC74AC138, MC74ACT138 1-of-8 Decoder/Demultiplexer T h e M C 7 4 A C 1 3 8 / 7 4 A C T 1 3 8 i s a h i g h −s p e e d 1 −o f −8 decoder/demultiplexer. This device is ideally suited for high−speed bipolar memory chip select address decoding. The multiple input enables allow parallel expansion to a 1−of−24 decoder using just three MC74AC138/74ACT138 devices or a 1−of−32 decoder using four MC74AC138/74ACT138 devices and one inverter. • • • • • • www.onsemi.com MARKING DIAGRAMS 16 Demultiplexing Capability Multiple Input Enable for Easy Expansion Active LOW Mutually Exclusive Outputs Outputs Source/Sink 24 mA ′ACT138 Has TTL Compatible Inputs These are Pb−Free Devices SOIC−16 D SUFFIX CASE 751B 16 1 xxx138G AWLYWW 1 16 16 VCC O0 O1 O2 O3 O4 O5 O6 16 15 14 13 12 11 10 9 1 xxx 138 ALYWG G TSSOP−16 DT SUFFIX CASE 948F 1 xxx = AC or ACT A = Assembly Location WL or L = Wafer Lot Y = Year WW or W = Work Week G or G = Pb−Free Package 1 A0 2 A1 3 A2 4 E1 5 E2 6 E3 7 O7 (Note: Microdot may be in either location) 8 GND Figure 1. Pinout: 16−Lead Packages Conductors (Top View) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 7 of this data sheet. A0 A1 A2 E1 E2 E3 O0 O1 O2 O3 O4 O5 O6 O7 Figure 2. Logic Symbol PIN ASSIGNMENT PIN FUNCTION A0−A2 Address Inputs E1−E2 Enable Inputs E3 Enable Input O0−O7 Outputs © Semiconductor Components Industries, LLC, 2015 January, 2015 − Rev. 7 1 Publication Order Number: MC74AC138/D MC74AC138, MC74ACT138 FUNCTIONAL DESCRIPTION HIGH. This multiple enabled function allows easy parallel expansion of the device to a 1−of−32 (5 lines to 32 lines) decoder with just four MC74AC138/74ACT138 devices and one inverter (See Figure 4). The MC74AC138/74ACT138 can be used as an 8−output demultiplexer by using one of the active LOW Enable inputs as the data input and the other Enable inputs as strobes. The Enable inputs which are not used must be permanently tied to their appropriate active−HIGH or active−LOW state. The MC74AC138/74ACT138 high−speed 1−of−8 decoder/demultiplexer accepts three binary weighted inputs (A0, A1, A2) and, when enabled, provides eight mutually exclusive active−LOW outputs (O0−O7). The MC74AC138/74ACT138 features three Enable inputs, two active−LOW (E1, E2) and one active−HIGH (E3). All outputs will be HIGH unless E1 and E2 are LOW and E3 is TRUTH TABLE Inputs Outputs E1 E2 E3 A0 A1 A2 O0 O1 O2 O3 O4 O5 O6 O7 H X X X H X X X L X X X X X X X X X H H H H H H H H H H H H H H H H H H H H H H H H L L L L L L L L H H H H L H L H L L H H L L L L L H H H H L H H H H L H H H H L H H H H H H H H H H H H H H H H L L L L L L L L H H H H L H L H L L H H H H H H H H H H H H H H H H H H H H H H L H H H H L H H H H L H H H H L H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial A2 07 NOTE: A1 E1 E2 E3 A0 06 05 04 03 02 01 00 This diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Figure 3. Logic Diagram www.onsemi.com 2 MC74AC138, MC74ACT138 A0 A1 A2 ′04 A3 A4 H 123 A0 A1 A2 E 00 01 02 03 04 05 06 07 123 A0 A1 A2 123 E A0 A1 A2 00 01 02 03 04 05 06 07 E 00 01 02 03 04 05 06 07 00 123 A0 A1 A2 E 00 01 02 03 04 05 06 07 031 Figure 4. Expansion to 1−of−32 Decoding www.onsemi.com 3 MC74AC138, MC74ACT138 MAXIMUM RATINGS Symbol Parameter Value Unit *0.5 to )7.0 V *0.5 v VI v VCC )0.5 V *0.5 v VO v VCC )0.5 V DC Input Diode Current $20 mA IOK DC Output Diode Current $50 mA IO DC Output Sink/Source Current $50 mA ICC DC Supply Current per Output Pin $50 mA IGND DC Ground Current per Output Pin $50 mA TSTG Storage Temperature Range *65 to )150 °C TL Lead temperature, 1 mm from Case for 10 Seconds 260 °C TJ Junction temperature under Bias )150 °C qJA Thermal Resistance (Note 2) SOIC TSSOP 69.1 103.8 °C/W PD Power Dissipation in Still Air at 65°C (Note 3) SOIC TSSOP 500 500 mW MSL Moisture Sensitivity FR Flammability Rating VESD ESD Withstand Voltage Human Body Model (Note 4) Machine Model (Note 5) Charged Device Model (Note 6) > 2000 > 200 > 1000 V ILatch−Up Latch−Up Performance Above VCC and Below GND at 85°C (Note 7) $100 mA VCC DC Supply Voltage VI DC Input Voltage VO DC Output Voltage IIK (Note 1) Level 1 Oxygen Index: 30% − 35% UL 94 V−0 @ 0.125 in Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. IO absolute maximum rating must be observed. 2. The package thermal impedance is calculated in accordance with JESD51−7. 3. 500 mW at 65°C; derate to 300 mW by 10 mW/ from 65°C to 85°C. 4. Tested to EIA/JESD22−A114−A. 5. Tested to EIA/JESD22−A115−A. 6. Tested to JESD22−C101−A. 7. Tested to EIA/JESD78. RECOMMENDED OPERATING CONDITIONS Symbol Parameter VCC Supply Voltage VIN, VOUT DC Input Voltage, Output Voltage (Ref. to GND) tr, tf Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs Min Typ Max Unit ′AC 2.0 5.0 6.0 ′ACT 4.5 5.0 5.5 0 − VCC VCC @ 3.0 V − 150 − VCC @ 4.5 V − 40 − VCC @ 5.5 V − 25 − VCC @ 4.5 V − 10 − VCC @ 5.5 V − 8.0 − − − 140 °C −40 25 85 °C V V ns/V tr, tf Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs TJ Junction Temperature (PDIP) TA Operating Ambient Temperature Range IOH Output Current − High − − −24 mA IOL Output Current − Low − − 24 mA ns/V Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. 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. www.onsemi.com 4 MC74AC138, MC74ACT138 DC CHARACTERISTICS Symbol Parameter VCC (V) 74AC 74AC TA = +25°C TA = −40°C to +85°C Typ VIH VIL VOH VOL Guaranteed Limits 3.0 4.5 5.5 1.5 2.25 2.75 2.1 3.15 3.85 2.1 3.15 3.85 V VOUT = 0.1 V or VCC − 0.1 V Maximum Low Level Input Voltage 3.0 4.5 5.5 1.5 2.25 2.75 0.9 1.35 1.65 0.9 1.35 1.65 V VOUT = 0.1 V or VCC − 0.1 V Minimum High Level Output Voltage 3.0 4.5 5.5 2.99 4.49 5.49 2.9 4.4 5.4 2.9 4.4 5.4 V 3.0 4.5 5.5 − − − 2.56 3.86 4.86 2.46 3.76 4.76 3.0 4.5 5.5 0.002 0.001 0.001 0.1 0.1 0.1 0.1 0.1 0.1 3.0 4.5 5.5 − − − 0.36 0.36 0.36 0.44 0.44 0.44 5.5 − ±0.1 5.5 − 5.5 5.5 Maximum Low Level Output Voltage Maximum Input Leakage Current IOLD †Minimum Dynamic Output Current ICC Conditions Minimum High Level Input Voltage IIN IOHD Unit Maximum Quiescent Supply Current IOUT = −50 μA V *VIN = VIL or VIH −12 mA IOH −24 mA −24 mA IOUT = 50 μA V V *VIN = VIL or VIH 12 mA IOL 24 mA 24 mA ±1.0 μA VI = VCC, GND − 75 mA VOLD = 1.65 V Max − − −75 mA VOHD = 3.85 V Min − 8.0 80 μA VIN = VCC or GND *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. AC CHARACTERISTICS Symbol Parameter VCC* (V) 74AC 74AC TA = +25°C CL = 50 pF TA = −40°C to +85°C CL = 50 pF Min Typ Max Min Max Unit Fig. No. tPLH Propagation Delay An to On 3.3 5.0 1.5 1.5 8.5 6.5 13.0 9.5 1.5 1.5 15.0 10.5 ns 3−6 tPHL Propagation Delay An to On 3.3 5.0 1.5 1.5 8.0 6.0 12.5 9.0 1.5 1.5 14.0 10.5 ns 3−6 tPLH Propagation Delay E1 or E2 to On 3.3 5.0 1.5 1.5 11.0 8.0 15.0 11.0 1.5 1.5 16.0 12.0 ns 3−6 tPHL Propagation Delay E1 or E2 to On 3.3 5.0 1.5 1.5 9.5 7.0 13.5 9.5 1.5 1.5 15.0 10.5 ns 3−6 tPLH Propagation Delay E3 to On 3.3 5.0 1.5 1.5 11.0 8.0 15.5 11.0 1.5 1.5 16.5 12.5 ns 3−6 tPHL Propagation Delay E3 to On 3.3 5.0 1.5 1.5 8.5 6.0 13.0 8.0 1.5 1.0 14.0 9.5 ns 3−6 *Voltage Range 3.3 V is 3.3 V ±0.3 V. *Voltage Range 5.0 V is 5.0 V ±0.5 V. www.onsemi.com 5 MC74AC138, MC74ACT138 DC CHARACTERISTICS Symbol VCC (V) Parameter 74ACT 74ACT TA = +25°C TA = −40°C to +85°C Typ Unit Conditions Guaranteed Limits VIH Minimum High Level Input Voltage 4.5 5.5 1.5 1.5 2.0 2.0 2.0 2.0 V VOUT = 0.1 V or VCC − 0.1 V VIL Maximum Low Level Input Voltage 4.5 5.5 1.5 1.5 0.8 0.8 0.8 0.8 V VOUT = 0.1 V or VCC − 0.1 V VOH Minimum High Level Output Voltage 4.5 5.5 4.49 5.49 4.4 5.4 4.4 5.4 V 4.5 5.5 − − 3.86 4.86 3.76 4.76 4.5 5.5 0.001 0.001 0.1 0.1 0.1 0.1 4.5 5.5 − − 0.36 0.36 0.44 0.44 V *VIN = VIL or VIH 24 mA IOL 24 mA VOL Maximum Low Level Output Voltage IOUT = −50 μA *VIN = VIL or VIH −24 mA IOH −24 mA V IOUT = 50 μA V IIN Maximum Input Leakage Current 5.5 − ±0.1 ±1.0 μA VI = VCC, GND ΔICCT Additional Max. ICC/Input 5.5 0.6 − 1.5 mA VI = VCC − 2.1 V IOLD †Minimum Dynamic Output Current 5.5 − − 75 mA VOLD = 1.65 V Max 5.5 − − −75 mA VOHD = 3.85 V Min 5.5 − 8.0 80 μA VIN = VCC or GND IOHD ICC Maximum Quiescent Supply Current *All outputs loaded; thresholds on input associated with output under test. †Maximum test duration 2.0 ms, one output loaded at a time. AC CHARACTERISTICS Symbol Parameter VCC* (V) 74ACT 74ACT TA = +25°C CL = 50 pF TA = −40°C to +85°C CL = 50 pF Min Typ Max Min Max Unit Fig. No. tPLH Propagation Delay An to On 5.0 1.5 7.0 10.5 1.5 11.5 ns 3−6 tPHL Propagation Delay An to On 5.0 1.5 6.5 10.5 1.5 11.5 ns 3−6 tPLH Propagation Delay E1 or E2 to On 5.0 2.5 8.0 11.5 2.0 12.5 ns 3−6 tPHL Propagation Delay E1 or E2 to On 5.0 2.0 7.5 11.5 2.0 12.5 ns 3−6 tPLH Propagation Delay E3 to On 5.0 2.5 8.0 12.0 2.0 13.0 ns 3−6 tPHL Propagation Delay E3 to On 5.0 2.0 6.5 10.5 1.5 11.5 ns 3−6 *Voltage Range 5.0 V is 5.0 V ± 0.5 V CAPACITANCE Symbol Parameter Value Typ Unit Test Conditions CIN Input Capacitance 4.5 pF VCC = 5.0 V CPD Power Dissipation Capacitance 60 pF VCC = 5.0 V www.onsemi.com 6 MC74AC138, MC74ACT138 ORDERING INFORMATION Package Shipping† MC74AC138DG SOIC−16 (Pb−Free) 48 Units / Rail MC74AC138DR2G SOIC−16 (Pb−Free) 2500 Tape & Reel MC74AC138DTR2G TSSOP−16 (Pb−Free) 2500 Tape & Reel MC74ACT138DG SOIC−16 (Pb−Free) 48 Units / Rail MC74ACT138DR2G SOIC−16 (Pb−Free) 2500 Tape & Reel MC74ACT138DTR2G TSSOP−16 (Pb−Free) 2500 Tape & Reel Device Order Number †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. www.onsemi.com 7 MC74AC138, MC74ACT138 PACKAGE DIMENSIONS SOIC−16 D SUFFIX CASE 751B−05 ISSUE K 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. −A− 16 9 −B− 1 P 8 PL 0.25 (0.010) 8 B M S G R K F X 45 _ C −T− SEATING PLANE J M D DIM A B C D F G J K M P R 16 PL 0.25 (0.010) M T B S A S SOLDERING FOOTPRINT* 8X 6.40 16X 1 1.12 16 16X 0.58 1.27 PITCH 8 9 DIMENSIONS: MILLIMETERS *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. www.onsemi.com 8 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 MC74AC138, MC74ACT138 PACKAGE DIMENSIONS TSSOP−16 DT SUFFIX CASE 948F ISSUE B 16X K REF 0.10 (0.004) 0.15 (0.006) T U M T U S V S S K ÉÉÉ ÇÇÇ ÇÇÇ ÉÉÉ K1 2X L/2 16 9 J1 B −U− L SECTION N−N J PIN 1 IDENT. N 0.25 (0.010) 8 1 M 0.15 (0.006) T U S A −V− NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A DOES NOT INCLUDE MOLD FLASH. PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE. 5. DIMENSION K DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE K DIMENSION AT MAXIMUM MATERIAL CONDITION. 6. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 7. DIMENSION A AND B ARE TO BE DETERMINED AT DATUM PLANE −W−. N F DETAIL E −W− C 0.10 (0.004) −T− SEATING PLANE H D DETAIL E G DIM A B C D F G H J J1 K K1 L M MILLIMETERS MIN MAX 4.90 5.10 4.30 4.50 −−− 1.20 0.05 0.15 0.50 0.75 0.65 BSC 0.18 0.28 0.09 0.20 0.09 0.16 0.19 0.30 0.19 0.25 6.40 BSC 0_ 8_ SOLDERING FOOTPRINT* 7.06 1 0.65 PITCH 16X 0.36 16X 1.26 DIMENSIONS: MILLIMETERS *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. www.onsemi.com 9 INCHES MIN MAX 0.193 0.200 0.169 0.177 −−− 0.047 0.002 0.006 0.020 0.030 0.026 BSC 0.007 0.011 0.004 0.008 0.004 0.006 0.007 0.012 0.007 0.010 0.252 BSC 0_ 8_ MC74AC138, MC74ACT138 ON Semiconductor and the are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries. SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. 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