MC74HCT373A Octal 3-State Noninverting Transparent Latch with LSTTL-Compatible Inputs High−Performance Silicon−Gate CMOS The MC74HCT373A may be used as a level converter for interfacing TTL or NMOS outputs to High−Speed CMOS inputs. The HCT373A is identical in pinout to the LS373. The eight latches of the HCT373A are transparent D−type latches. While the Latch Enable is high the Q outputs follow the Data Inputs. When Latch Enable is taken low, data meeting the setup and hold times becomes latched. The Output Enable does not affect the state of the latch, but when Output Enable is high, all outputs are forced to the high−impedance state. Thus, data may be latched even when the outputs are not enabled. The HCT373A is identical in function to the HCT573A, which has the input pins on the opposite side of the package from the output pins. This device is similar in function to the HCT533A, which has inverting outputs. • Output Drive Capability: 15 LSTTL Loads • TTL/NMOS−Compatible Input Levels • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 4.5 to 5.5 V • Low Input Current: 1.0 mA • In Compliance with the Requirements Defined by JEDEC Standard No. 7 A • Chip Complexity: 196 FETs or 49 Equivalent Gates • These Devices are Pb−Free and are RoHS Compliant http://onsemi.com MARKING DIAGRAMS 20 PDIP−20 N SUFFIX CASE 738 1 20 MC74HCT373AN AWLYYWWG 1 20 SOIC−20 DW SUFFIX CASE 751D 20 1 HCT373A AWLYYWWG 1 20 HCT 373A ALYWG G TSSOP−20 DT SUFFIX CASE 948E 20 1 1 20 SOEIAJ−20 F SUFFIX CASE 967 1 20 1 A WL, L YY, Y WW, W G or G 74HCT373A AWLYWWG = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION Device MC74HCT373ANG Package Shipping† PDIP−20 18 / Box MC74HCT373ADWG SOIC−20 38 / Rail MC74HCT373ADWR2G SOIC−20 1000 / Reel MC74HCT373AFELG SOEIAJ−20 2000 / Reel MC74HCT373ADTR2G TSSOP−20 2500 / Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. © Semiconductor Components Industries, LLC, 2011 June, 2011 − Rev. 12 1 Publication Order Number: MC74HCT373A/D MC74HCT373A PIN ASSIGNMENT LOGIC DIAGRAM D0 D1 D2 DATA INPUTS D3 D4 D5 D6 D7 LATCH ENABLE OUTPUT ENABLE 3 2 4 5 7 6 8 9 13 12 14 15 17 16 18 19 11 VCC 2 19 Q7 D0 3 18 D7 D6 4 17 Q1 5 16 Q6 Q1 Q2 6 15 Q5 Q2 D2 7 14 D5 D3 8 13 D4 Q3 9 12 Q4 10 11 LATCH ENABLE Q3 NONINVERTING OUTPUTS Q4 GND Q5 Q6 FUNCTION TABLE Q7 Inputs Value Units Internal Gate Count* 49 ea. Internal Gate Propagation Delay 1.5 ns Internal Gate Power Dissipation 5.0 mW 0.0075 pJ Speed Power Product 20 D1 *Equivalent to a two−input NAND gate. http://onsemi.com 2 Output Output Enable Latch Enable D Q L L L H H H L X H L X X H L No Change Z X = don’t care Z = high impedance ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Design Criteria 1 Q0 PIN 20 = VCC PIN 10 = GND 1 OUTPUT ENABLE Q0 MC74HCT373A ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ MAXIMUM RATINGS* Symbol Parameter Value Unit – 0.5 to + 7.0 V DC Input Voltage (Referenced to GND) – 0.5 to VCC + 0.5 V DC Output Voltage (Referenced to GND) – 0.5 to VCC + 0.5 V VCC DC Supply Voltage (Referenced to GND) Vin Vout Iin DC Input Current, per Pin ± 20 mA Iout DC Output Current, per Pin ± 35 mA ICC DC Supply Current, VCC and GND Pins ± 75 mA PD Power Dissipation in Still Air, 750 500 450 mW Tstg Storage Temperature – 65 to + 150 °C Plastic DIP† SOIC Package† TSSOP Package† TL Lead Temperature, 1 mm from Case for 10 Seconds 260 (Plastic DIP, SOIC, SSOP or TSSOP Package) *Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. †Derating — Plastic DIP: – 10 mW/°C from 65° to 125°C SOIC Package: – 7 mW/°C from 65° to 125°C TSSOP Package: − 6.1 mW/°C from 65° to 125°C This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high−impedance circuit. For proper operation, Vin and Vout should be constrained to the range GND v (Vin or Vout) v VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open. °C ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ RECOMMENDED OPERATING CONDITIONS Symbol VCC Vin, Vout Parameter Min Max Unit 4.5 5.5 V 0 VCC V – 55 + 125 °C 0 500 ns DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) TA Operating Temperature, All Package Types tr, tf Input Rise and Fall Time (Figure 1) DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) Guaranteed Limit Symbol Parameter Test Conditions VCC V – 55 to 25°C v 85°C v 125°C Unit VIH Minimum High−Level Input Voltage Vout = 0.1 V or VCC – 0.1 V |Iout| v 20 mA 4.5 5.5 2.0 2.0 2.0 2.0 2.0 2.0 V VIL Maximum Low−Level Input Voltage Vout = 0.1 V or VCC – 0.1 V |Iout| v 20 mA 4.5 5.5 0.8 0.8 0.8 0.8 0.8 0.8 V VOH Minimum High−Level Output Voltage Vin = VIH or VIL |Iout| v 20 mA 4.5 5.5 4.4 5.4 4.4 5.4 4.4 5.4 V Vin = VIH or VIL |Iout| v 6.0 mA 4.5 3.98 3.84 3.7 Vin = VIH or VIL |Iout| v 20 mA 4.5 5.5 0.1 0.1 0.1 0.1 0.1 0.1 Vin = VIH or VIL |Iout| v 6.0 mA 4.5 0.26 0.33 0.4 VOL Maximum Low−Level Output Voltage V Iin Maximum Input Leakage Current Vin = VCC or GND 5.5 ± 0.1 ± 1.0 ± 1.0 mA IOZ Maximum Three−State Leakage Current Output in High−Impedance State Vin = VIL or VIH Vout = VCC or GND 5.5 ± 0.5 ± 5.0 ± 10 mA ICC Maximum Quiescent Supply Current (per Package) Vin = VCC or GND Iout = 0 mA 5.5 4.0 40 160 mA http://onsemi.com 3 MC74HCT373A ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ DICC Additional Quiescent Supply Current Vin = 2.4 V, Any One Input Vin = VCC or GND, Other Inputs lout = 0 mA 5.5 ≥ −55°C 25°C to 125°C 2.9 2.4 mA NOTE: 1. Total Supply Current = ICC + SDICC. ÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ AC ELECTRICAL CHARACTERISTICS (VCC = 5.0 V ± 10%, CL = 50 pF, Input tr = tf = 6.0 ns) Guaranteed Limit – 55 to 25°C v 85°C v 125°C Unit tPLH, tPHL Maximum Propagation Delay, Input D to Q (Figures 1 and 5) 28 35 42 ns tPLH, tPHL Maximum Propagation Delay, Latch Enable to Q (Figures 2 and 5) 32 40 48 ns tPLZ, tPHZ Maximum Propagation Delay, Output Enable to Q (Figures 3 and 6) 30 38 45 ns tPZL, tPZH Maximum Propagation Delay, Output Enable to Q (Figures 3 and 6) 35 44 53 ns tTLH, tTHL Maximum Output Transition Time, Any Output (Figures 1 and 5) 12 15 18 ns Cin Maximum Input Capacitance 10 10 10 pF Cout Maximum Three−State Output Capacitance (Output in High−Impedance State) 15 15 15 pF Symbol Parameter Typical @ 25°C, VCC = 5.0 V CPD 65 Power Dissipation Capacitance (Per Latch)* * Used to determine the no−load dynamic power consumption: P D = CPD VCC 2f pF + ICC VCC . ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ TIMING REQUIREMENTS (VCC = 5.0 V ± 10%, Input tr = tf = 6.0 ns) Guaranteed Limit Symbol Parameter – 55 to 25°C v 85°C v 125°C Unit tsu Minimum Setup Time, Input D to Latch Enable (Figure 4) 10 13 15 ns th Minimum Hold Time, Latch Enable to Input D (Figure 4) 10 13 15 ns tw Minimum Pulse Width, Latch Enable (Figure 2) 12 15 18 ns tr, tf Maximum Input Rise and Fall Times (Figure 1) 500 500 500 ns http://onsemi.com 4 MC74HCT373A EXPANDED LOGIC DIAGRAM D0 3 D1 4 D Q D2 7 D LE Q D3 8 D LE Q D4 13 D LE Q D5 14 D LE Q D6 17 D LE Q D7 18 D LE Q D LE Q LE LATCH 11 ENABLE OUTPUT 1 ENABLE 2 Q0 5 Q1 6 Q2 9 Q3 12 Q4 15 Q5 16 Q6 19 Q7 SWITCHING WAVEFORMS tr tf INPUT D tw 3V 2.7 V 1.3 V 0.3 V LATCH ENABLE GND tPHL Q Figure 2. 3V 1.3 V GND tPZL tPLZ VALID 3V HIGH IMPEDANCE 1.3 V tPZH Q 1.3 V tTHL Figure 1. Q tPHL tPLH 90% 1.3 V 10% tTLH OUTPUT ENABLE 1.3 V GND tPLH Q 3V 1.3 V 10% VOL 90% VOH INPUT D GND tsu tPHZ 1.3 V 1.3 V LATCH ENABLE th 3V 1.3 V GND HIGH IMPEDANCE Figure 3. Figure 4. http://onsemi.com 5 MC74HCT373A TEST CIRCUITS TEST POINT TEST POINT OUTPUT OUTPUT DEVICE UNDER TEST DEVICE UNDER TEST CL* 1 kW CL* CONNECT TO VCC WHEN TESTING tPLZ AND tPZL. CONNECT TO GND WHEN TESTING tPHZ AND tPZH. *Includes all probe and jig capacitance *Includes all probe and jig capacitance Figure 5. Figure 6. http://onsemi.com 6 MC74HCT373A PACKAGE DIMENSIONS PDIP−20 N SUFFIX PLASTIC DIP PACKAGE CASE 738−03 ISSUE E NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. −A− 20 11 1 10 B L C −T− K SEATING PLANE M N E G F J D 20 PL 20 PL 0.25 (0.010) 0.25 (0.010) M T A M T B M DIM A B C D E F G J K L M N INCHES MIN MAX 1.010 1.070 0.240 0.260 0.150 0.180 0.015 0.022 0.050 BSC 0.050 0.070 0.100 BSC 0.008 0.015 0.110 0.140 0.300 BSC 0_ 15 _ 0.020 0.040 MILLIMETERS MIN MAX 25.66 27.17 6.10 6.60 3.81 4.57 0.39 0.55 1.27 BSC 1.27 1.77 2.54 BSC 0.21 0.38 2.80 3.55 7.62 BSC 0_ 15_ 0.51 1.01 M SOIC−20 DW SUFFIX CASE 751D−05 ISSUE G A 20 11 X 45 _ E h 1 10 20X B B 0.25 M T A S B S A L H M 10X 0.25 NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS OF B DIMENSION AT MAXIMUM MATERIAL CONDITION. q B M D 18X e A1 SEATING PLANE C T http://onsemi.com 7 DIM A A1 B C D E e H h L q MILLIMETERS MIN MAX 2.35 2.65 0.10 0.25 0.35 0.49 0.23 0.32 12.65 12.95 7.40 7.60 1.27 BSC 10.05 10.55 0.25 0.75 0.50 0.90 0_ 7_ MC74HCT373A PACKAGE DIMENSIONS TSSOP−20 DT SUFFIX CASE 948E−02 ISSUE C 20X 0.15 (0.006) T U 2X L K REF 0.10 (0.004) S L/2 20 M T U S V ÍÍÍÍ ÍÍÍÍ ÍÍÍÍ K K1 S J J1 11 B −U− PIN 1 IDENT 1 SECTION N−N 0.25 (0.010) N 10 M 0.15 (0.006) T U S N 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−. F DETAIL E −W− C G D H DETAIL E 0.100 (0.004) −T− SEATING PLANE DIM A B C D F G H J J1 K K1 L M SOLDERING FOOTPRINT 7.06 1 0.65 PITCH 16X 0.36 16X 1.26 DIMENSIONS: MILLIMETERS http://onsemi.com 8 MILLIMETERS MIN MAX 6.40 6.60 4.30 4.50 --1.20 0.05 0.15 0.50 0.75 0.65 BSC 0.27 0.37 0.09 0.20 0.09 0.16 0.19 0.30 0.19 0.25 6.40 BSC 0_ 8_ INCHES MIN MAX 0.252 0.260 0.169 0.177 --0.047 0.002 0.006 0.020 0.030 0.026 BSC 0.011 0.015 0.004 0.008 0.004 0.006 0.007 0.012 0.007 0.010 0.252 BSC 0_ 8_ MC74HCT373A PACKAGE DIMENSIONS SOEIAJ−20 F SUFFIX CASE 967−01 ISSUE A 20 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS AND ARE MEASURED AT THE PARTING LINE. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 5. THE LEAD WIDTH DIMENSION (b) DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE LEAD WIDTH DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSIONS AND ADJACENT LEAD TO BE 0.46 ( 0.018). LE 11 Q1 E HE 1 M_ L 10 DETAIL P Z D e VIEW P A A1 b 0.13 (0.005) c M 0.10 (0.004) DIM A A1 b c D E e HE L LE M Q1 Z MILLIMETERS MIN MAX --2.05 0.05 0.20 0.35 0.50 0.15 0.25 12.35 12.80 5.10 5.45 1.27 BSC 7.40 8.20 0.50 0.85 1.10 1.50 10 _ 0_ 0.70 0.90 --0.81 INCHES MIN MAX --0.081 0.002 0.008 0.014 0.020 0.006 0.010 0.486 0.504 0.201 0.215 0.050 BSC 0.291 0.323 0.020 0.033 0.043 0.059 10 _ 0_ 0.028 0.035 --0.032 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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