[ /Title (CD74 HC373 , CD74 HCT37 3, CD54 HC573 , CD74 HC573 , CD74 HCT57 3) /Sub- Data sheet acquired from Harris Semiconductor SCHS182 November 1997 CD74HC373, CD74HCT373, CD54HC573, CD74HC573, CD74HCT573 High Speed CMOS Logic Octal Transparent Latch, Three-State Output Features Description • Common Latch Enable Control The Harris CD74HC373, CD74HCT373, CD54HC573, CD74HC573, and CD74HCT573 are high speed Octal Transparent Latches manufactured with silicon gate CMOS technology. They possess the low power consumption of standard CMOS integrated circuits, as well as the ability to drive 15 LSTTL devices. The CD74HCT373 and CD74HCT573 are functionally as well as pin compatible with the standard 74LS373 and 74LS573. • Common Three-State Output Enable Control • Buffered Inputs • Three-State Outputs • Bus Line Driving Capacity • Typical Propagation Delay = 12ns at VCC = 5V, CL = 15pF, TA = 25oC (Data to Output for HC373) The outputs are transparent to the inputs when the latch enable (LE) is high. When the latch enable (LE) goes low the data is latched. The output enable (OE) controls the threestate outputs. When the output enable (OE) is high the outputs are in the high impedance state. The latch operation is independent to the state of the output enable. The 373 and 573 are identical in function and differ only in their pinout arrangements. • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads • Wide Operating Temperature Range . . . -55oC to 125oC • Balanced Propagation Delay and Transition Times • Significant Power Reduction Compared to LSTTL Logic ICs Ordering Information • HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V TEMP. RANGE (oC) PACKAGE CD54HC573F -55 to 125 20 Ld CERDIP F20.3 CD74HC373E -55 to 125 20 Ld PDIP F20.3 CD74HCT373E -55 to 125 20 Ld PDIP E20.3 CD74HC573E -55 to 125 20 Ld PDIP E20.3 CD74HCT573E -55 to 125 20 Ld PDIP E20.3 CD74HC373M -55 to 125 20 Ld SOIC M20.3 CD74HCT373M -55 to 125 20 Ld SOIC M20.3 CD74HC573M -55 to 125 20 Ld SOIC M20.3 CD74HCT573M -55 to 125 20 Ld SOIC M20.3 PART NUMBER • HCT Types - 4.5V to 5.5V Operation - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH PKG. NO. NOTES: 1. When ordering, use the entire part number. Add the suffix 96 to obtain the variant in the tape and reel. 2. Wafer or die for this part number are available which meets all electrical specifications. Please contact your local sales office or Harris customer service for ordering information. CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © Harris Corporation 1997 1 File Number 1679.1 CD74HC373, CD74HCT373, CD54HC573, CD74HC573, CD74HCT573 Pinout CD74HC373, CD74HCT373 (PDIP, SOIC) TOP VIEW CD54HC573, CD74HC573, CD74HCT573 (PDIP, SOIC, CERDIP) TOP VIEW OE 1 20 VCC OE 1 Q0 2 19 Q7 D0 2 19 Q0 D0 3 18 D7 D1 3 18 Q1 20 VCC D1 4 17 D6 D2 4 17 Q2 Q1 5 16 Q6 D3 5 16 Q3 Q2 6 15 Q5 D4 6 15 Q4 D2 7 14 D5 D5 7 14 Q5 D3 8 13 D4 D6 8 13 Q6 Q3 9 12 Q4 D7 9 12 Q7 GND 10 11 LE GND 10 11 LE Functional Block Diagrams CD74HC373, CD74HCT373, CD74HC573, CD74HCT573 D0 D1 D G D2 D G O D3 D G O D4 D D G O D5 G O D6 D G O D7 D G O D G O O LE OE O0 O1 O2 O3 O4 O5 O6 O7 CD74HCT573 D0 D1 D O D2 D G O D3 D G O D4 D G O D5 D G O D6 D G O D7 D G O D G O G LE OE O0 O1 O2 O3 O4 O5 O6 O7 TRUTH TABLE OUTPUT ENABLE LATCH ENABLE DATA OUTPUT L H H H L H L L L L l L L L h H H X X Z NOTE: H = High Voltage Level, L = Low Voltage Level, X = Don’t Care, Z = High Impedance State, l = Low voltage level one set-up time prior to the high to low latch enable transition, h = High voltage level one set-up time prior to the high to low latch enable transition. 2 CD74HC373, CD74HCT373, CD54HC573, CD74HC573, CD74HCT573 Absolute Maximum Ratings Thermal Information DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V DC Input Diode Current, IIK For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA DC Output Diode Current, IOK For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±20mA DC Drain Current, per Output, IO For -0.5V < VO < VCC + 0.5V. . . . . . . . . . . . . . . . . . . . . . . . . .±35mA DC Output Source or Sink Current per Output Pin, IO For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±25mA DC VCC or Ground Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . .±50mA Thermal Resistance (Typical, Note 3). . . . θJA (oC/W) θJA (oC/W) PDIP Package . . . . . . . . . . . . . . . . . . . 125 N/A CERDIP Package . . . . . . . . . . . . . . . . 85 24 SOIC Package . . . . . . . . . . . . . . . . . . . 120 N/A Maximum Junction Temperature (Plastic Package) . . . . . . . . 150oC Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC (SOIC - Lead Tips Only) Operating Conditions Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC Supply Voltage Range, VCC HC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V HCT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . 0V to VCC Input Rise and Fall Time 2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max) 4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max) 6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max) CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. NOTE: 3. θJA is measured with the component mounted on an evaluation PC board in free air. DC Electrical Specifications TEST CONDITIONS PARAMETER SYMBOL VI (V) VIH - 25oC IO (mA) VCC (V) -40oC TO 85oC -55oC TO 125oC MIN TYP MAX MIN MAX MIN MAX UNITS 2 1.5 - - 1.5 - 1.5 - V 4.5 3.15 - - 3.15 - 3.15 - V 6 4.2 - - 4.2 - 4.2 - V HC TYPES High Level Input Voltage Low Level Input Voltage High Level Output Voltage CMOS Loads VIL VOH - VIH or VIL High Level Output Voltage TTL Loads Low Level Output Voltage CMOS Loads VOL VIH or VIL Low Level Output Voltage TTL Loads Input Leakage Current Quiescent Device Current - - 2 - - 0.5 - 0.5 - 0.5 V 4.5 - - 1.35 - 1.35 - 1.35 V 6 - - 1.8 - 1.8 - 1.8 V -0.02 2 1.9 - - 1.9 - 1.9 - V -0.02 4.5 4.4 - - 4.4 - 4.4 - V -0.02 6 5.9 - - 5.9 - 5.9 - V -6 4.5 3.98 - - 3.84 - 3.7 - V -7.8 6 5.48 - - 5.34 - 5.2 - V 0.02 2 - - 0.1 - 0.1 - 0.1 V 0.02 4.5 - - 0.1 - 0.1 - 0.1 V 0.02 6 - - 0.1 - 0.1 - 0.1 V 6 4.5 - - 0.26 - 0.33 - 0.4 V 7.8 6 - - 0.26 - 0.33 - 0.4 V II VCC or GND - 6 - - ±0.1 - ±1 - ±1 µA ICC VCC or GND 0 6 - - 8 - 80 - 160 µA 3 CD74HC373, CD74HCT373, CD54HC573, CD74HC573, CD74HCT573 DC Electrical Specifications (Continued) TEST CONDITIONS 25oC SYMBOL VI (V) IO (mA) VCC (V) - VIL or VIH VO = VCC or GND High Level Input Voltage VIH - Low Level Input Voltage VIL High Level Output Voltage CMOS Loads VOH PARAMETER Three-State Leakage Current -40oC TO 85oC -55oC TO 125oC MIN TYP MAX MIN MAX MIN MAX UNITS 6 - - ±0.5 - ±5 - ±10 µA - 4.5 to 5.5 2 - - 2 - 2 - V - - 4.5 to 5.5 - - 0.8 - 0.8 - 0.8 V VIH or VIL -0.02 4.5 4.4 - - 4.4 - 4.4 - V -6 4.5 3.98 - - 3.84 - 3.7 - V -7.8 6 5.48 - - 5.34 - 5.2 - V 0.02 4.5 - - 0.1 - 0.1 - 0.1 V 6 4.5 - - 0.26 - 0.33 - 0.4 V 7.8 6 - - 0.26 - 0.33 - 0.4 V HCT TYPES High Level Output Voltage TTL Loads Low Level Output Voltage CMOS Loads VOL VIH or VIL Low Level Output Voltage TTL Loads II VCC to GND - 5.5 - - ±0.1 - ±1 - ±1 µA ICC VCC or GND 0 5.5 - - 8 - 80 - 160 µA Three-State Leakage Current - VIL or VIH VO = VCC or GND 6 - - ±0.5 - ±5 - ±10 µA Additional Quiescent Device Current Per Input Pin: 1 Unit Load (Note 4) ∆ICC VCC -2.1 - 4.5 to 5.5 - 100 360 - 450 - 490 µA Input Leakage Current Quiescent Device Current NOTE: 4. For dual-supply systems theoretical worst case (VI = 2.4V, VCC = 5.5V) specification is 1.8mA. HCT Input Loading Table UNIT LOADS INPUT HCT373 HCT573 OE 1.5 1.25 Dn 0.4 0.3 LE 0.6 0.65 NOTE: Unit Load is ∆ICC limit specified in DC Electrical Specifications table, e.g., 360µA max at 25oC. 4 CD74HC373, CD74HCT373, CD54HC573, CD74HC573, CD74HCT573 Prerequisite For Switching Specifications PARAMETER 25oC -40oC TO 85oC -55oC TO 125oC SYMBOL TEST CONDITIONS VCC (V) MIN TYP MAX MIN MAX MIN MAX UNITS tW - 2 80 - - 100 - 120 - ns 4.5 16 - - 20 - 24 - ns 6 14 - - 17 - 20 - ns 2 50 - - 65 - 75 - ns 4.5 10 - - 13 - 15 - ns 6 9 - - 11 - 13 - ns HC TYPES LE Pulse Width Set-up Time Data to LE tSU Hold Time, Data to LE (573) - tH Hold Time, Data to LE (373) - tH - 2 40 - - 50 - 60 - ns 4.5 8 - - 10 - 12 - ns 6 7 - - 9 - 10 - ns 2 5 - - 5 - 5 - ns 4.5 5 - - 5 - 5 - ns 6 5 - - 5 - 5 - ns HCT TYPES LE Pulse Width tw - 4.5 16 - - 20 - 24 - ns Set-up Time Data to LE tw - 4.5 13 - - 16 - 20 - ns Hold Time, Data to LE tH - 4.5 10 - - 13 - 15 - ns Switching Specifications PARAMETER Input tr, tf = 6ns SYMBOL TEST CONDITIONS tPLH, tPHL CL = 50pF 25oC -40oC TO 85oC -55oC TO 125oC VCC (V) TYP MAX MAX MAX UNITS 2 - 150 190 225 ns 4.5 - 30 38 45 ns 6 - 26 33 38 ns CL = 15pF 5 12 - - - ns CL = 50pF 2 - 175 220 265 ns 4.5 - 35 44 53 ns 6 - 30 37 45 ns CL = 15pF 5 14 - - - ns CL = 50pF 2 - 175 220 265 ns 4.5 - 35 44 53 ns 6 - 30 37 45 ns 5 14 - - - ns HC TYPES Propagation Delay, Data to Qn (HC/HCT373) Propagation Delay, Data to Qn (HC/HCT573) Propagation Delay, LE to Qn tPLH, tPHL tPLH, tPHL CL = 15pF 5 CD74HC373, CD74HCT373, CD54HC573, CD74HC573, CD74HCT573 Switching Specifications PARAMETER Output Enabling Time Output Disabling Time Output Transition Time Input tr, tf = 6ns (Continued) SYMBOL TEST CONDITIONS tPZL, tPZH CL = 50pF tPLZ, tPHZ tTLH, tTHL 25oC -40oC TO 85oC -55oC TO 125oC VCC (V) TYP MAX MAX MAX UNITS 2 - 150 190 225 ns 4.5 - 30 38 45 ns 6 - 26 33 38 ns CL = 15pF 5 12 - - - ns CL = 50pF 2 - 150 190 225 ns 4.5 - 30 38 45 ns 6 - 26 33 38 ns CL = 15pF 5 12 - - - ns CL = 50pF 2 - 60 75 90 ns 4.5 - 12 15 18 ns 6 - 10 13 15 ns Input Capacitance CI - - - 10 10 10 pF Three-State Output Capacitance CO - - - 20 20 20 pF Power Dissipation Capacitance (Notes 5, 6) CPD - 5 51 - - - pF CL = 50pF 4.5 - 32 40 48 ns CL = 15pF 5 13 - - - ns CL = 50pF 4.5 - 35 44 53 ns CL = 15pF 5 17 - - - ns CL = 50pF 4.5 - 35 44 53 ns CL = 15pF 5 14 - - - ns CL = 50pF 4.5 - 35 44 53 ns CL = 15pF 5 14 - - - ns CL = 50pF 4.5 - 35 44 53 ns CL = 15pF 5 14 - - - ns CL = 50pF 4.5 - 12 15 18 ns HCT TYPES Propagation Delay, Data to Qn (HC/HCT373) tPLH, tPHL Propagation Delay, Data to Qn (HC/HCT573) tPLH, tPHL Propagation Delay, LE to Qn tPLH, tPHL Output Enabling Time tPZL, tPZH Output Disabling Time Output Transition Time tPLZ, tPZH tTLH, tTHL Input Capacitance CI - - - 10 10 10 pF Three-State Output Capacitance CO - - - 20 20 20 pF Power Dissipation Capacitance (Notes 5, 6) CPD - 5 53 - - - pF NOTES: 5. CPD is used to determine the no-load dynamic power consumption, per latch. 6. PD (total power per latch) = VCC2 fi (CPD + CL) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage. 6 CD74HC373, CD74HCT373, CD54HC573, CD74HC573, CD74HCT573 Test Circuits and Waveforms tWL + tWH = tfCL trCL 50% 10% 10% tf = 6ns tr = 6ns tTLH 90% INVERTING OUTPUT tPHL FIGURE 3. HC TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC tPLH FIGURE 4. HCT TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC trCL tfCL VCC tfCL GND 1.3V 0.3V GND tH(H) tH(L) VCC DATA INPUT 3V 2.7V CLOCK INPUT 50% tH(H) tTLH 1.3V 10% tPLH 10% GND tTHL 90% 50% 10% 90% 3V 2.7V 1.3V 0.3V GND tTHL trCL tWH FIGURE 2. HCT CLOCK PULSE RISE AND FALL TIMES AND PULSE WIDTH INPUT INVERTING OUTPUT GND NOTE: Outputs should be switching from 10% VCC to 90% VCC in accordance with device truth table. For fMAX, input duty cycle = 50%. VCC 90% 50% 10% 1.3V 1.3V tWL tf = 6ns tPHL 1.3V 0.3V tWH FIGURE 1. HC CLOCK PULSE RISE AND FALL TIMES AND PULSE WIDTH INPUT 2.7V 0.3V GND tr = 6ns DATA INPUT 50% tH(L) 3V 1.3V 1.3V 1.3V GND tSU(H) tSU(H) tSU(L) tTLH 90% OUTPUT tTHL 90% 50% 10% tTLH 90% 1.3V OUTPUT tREM 3V SET, RESET OR PRESET GND tTHL 1.3V 10% FIGURE 5. HC SETUP TIMES, HOLD TIMES, REMOVAL TIME, AND PROPAGATION DELAY TIMES FOR EDGE TRIGGERED SEQUENTIAL LOGIC CIRCUITS tPHL 1.3V GND IC CL 50pF GND 90% tPLH 50% IC tSU(L) tPHL tPLH I fCL 3V NOTE: Outputs should be switching from 10% VCC to 90% VCC in accordance with device truth table. For fMAX, input duty cycle = 50%. tREM VCC SET, RESET OR PRESET tfCL = 6ns CLOCK 50% 50% tWL CLOCK INPUT tWL + tWH = trCL = 6ns VCC 90% CLOCK I fCL CL 50pF FIGURE 6. HCT SETUP TIMES, HOLD TIMES, REMOVAL TIME, AND PROPAGATION DELAY TIMES FOR EDGE TRIGGERED SEQUENTIAL LOGIC CIRCUITS 7 CD74HC373, CD74HCT373, CD54HC573, CD74HC573, CD74HCT573 Test Circuits and Waveforms 6ns (Continued) 6ns OUTPUT DISABLE 90% 50% 10% OUTPUTS ENABLED 2.7 1.3 OUTPUT HIGH TO OFF 50% OUTPUTS DISABLED FIGURE 7. HC THREE-STATE PROPAGATION DELAY WAVEFORM OTHER INPUTS TIED HIGH OR LOW OUTPUT DISABLE IC WITH THREESTATE OUTPUT GND 1.3V tPZH 90% OUTPUTS ENABLED OUTPUTS ENABLED 0.3 10% tPHZ tPZH 90% 3V tPZL tPLZ OUTPUT LOW TO OFF 50% OUTPUT HIGH TO OFF 6ns GND 10% tPHZ tf OUTPUT DISABLE tPZL tPLZ OUTPUT LOW TO OFF 6ns tr VCC 1.3V OUTPUTS DISABLED OUTPUTS ENABLED FIGURE 8. HCT THREE-STATE PROPAGATION DELAY WAVEFORM OUTPUT RL = 1kΩ CL 50pF VCC FOR tPLZ AND tPZL GND FOR tPHZ AND tPZH NOTE: Open drain waveforms tPLZ and tPZL are the same as those for three-state shown on the left. The test circuit is Output RL = 1kΩ to VCC, CL = 50pF. FIGURE 9. 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