[ /Title (CD74 HC273 , CD74 HCT27 3) /Subject (High Speed CMOS Logic Octal DType Flip- CD74HC273, CD74HCT273 Data sheet acquired from Harris Semiconductor SCHS174 High Speed CMOS Logic Octal D-Type Flip-Flop with Reset February 1998 Features Description • Common Clock and Asynchronous Master Reset The Harris CD74HC273 and CD74HCT273 high speed octal D-Type flip-flops with a direct clear input are manufactured with silicon-gate CMOS technology. They possess the low power consumption of standard CMOS integrated circuits. • Positive Edge Triggering • Buffered Inputs • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads Information at the D inputis transferred to the Q outputs on the positive-going edge of the clock pulse. All eight flip-flops are controlled by a common clock (CP) and a common reset (MR). Resetting is accomplished by a low voltage level independent of the clock. All eight Q outputs are reset to a logic 0. • Wide Operating Temperature Range . . . -55oC to 125oC Ordering Information • Typical fMAX = 60MHz at VCC = 5V, CL = 15pF, TA = 25oC • Balanced Propagation Delay and Transition Times • Significant Power Reduction Compared to LSTTL Logic ICs TEMP. RANGE (oC) PACKAGE CD54HC273F -55 to 125 20 Ld CERDIP F20.3 CD54HCT273F -55 to 125 20 Ld CERDIP F20.3 CD74HC273E -55 to 125 20 Ld PDIP E20.3 CD74HCT273E -55 to 125 20 Ld PDIP E20.3 CD74HC273M -55 to 125 20 Ld SOIC M20.3 CD74HCT273M -55 to 125 20 Ld SOIC M20.3 PART NUMBER • HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V • 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 and die for this part number is available which meets all electrical specifications. Please contact your local sales office or Harris customer service for ordering information. Pinout CD54HC273, CD54HCT273, CD74HC273, CD74HCT273 (PDIP, SOIC, CERDIP) TOP VIEW MR 1 20 VCC Q0 2 19 Q7 D0 3 18 D7 D1 4 17 D6 Q1 5 16 Q6 Q2 6 15 Q5 D2 7 14 D5 D3 8 13 D4 Q3 9 12 Q4 GND 10 11 CP CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © Harris Corporation 1998 1 File Number 1479.2 CD74HC273, CD74HCT273 Functional Diagram CLOCK CP DATA INPUTS D0 Q0 D1 Q1 D2 Q2 D3 Q3 D4 Q4 D5 Q5 D6 Q6 D7 Q7 DATA OUTPUTS RESET MR TRUTH TABLE INPUTS OUTPUT RESET (MR) CLOCK CP DATA Dn Q L X X L H ↑ H H H ↑ L L H L X Q0 NOTE: H = High Voltage Level, L = Low Voltage Level, X = Don’t Care, ↑ = Transition from Low to High Level, Q0 = Level Before the Indicated Steady-State Input Conditions Were Established. 2 CD74HC273, CD74HCT273 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. . . . . . . . . . . . . . . . . . . . . . . . . .±25mA 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) θJC (oC/W) PDIP Package . . . . . . . . . . . . . . . . . . . 125 N/A CERDIP Package . . . . . . . . . . . . . . . . 105 44 SOIC Package . . . . . . . . . . . . . . . . . . . 120 N/A Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 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 -4 4.5 3.98 - - 3.84 - 3.7 - V -5.2 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 4 4.5 - - 0.26 - 0.33 - 0.4 V 5.2 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 CD74HC273, CD74HCT273 DC Electrical Specifications (Continued) TEST CONDITIONS SYMBOL VI (V) High Level Input Voltage VIH - - Low Level Input Voltage VIL - High Level Output Voltage CMOS Loads VOH VIH or VIL PARAMETER 25oC IO (mA) VCC (V) -40oC TO 85oC -55oC TO 125oC MIN TYP MAX MIN MAX MIN MAX UNITS 4.5 to 5.5 2 - - 2 - 2 - V - 4.5 to 5.5 - - 0.8 - 0.8 - 0.8 V -0.02 4.5 4.4 - - 4.4 - 4.4 - V -4 4.5 3.98 - - 3.84 - 3.7 - V 0.02 4.5 - - 0.1 - 0.1 - 0.1 V 4 4.5 - - 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 0 5.5 - - ±0.1 - ±1 - ±1 µA ICC VCC or GND 0 5.5 - - 8 - 80 - 160 µA ∆ICC VCC -2.1 - 4.5 to 5.5 - 100 360 - 450 - 490 µA Input Leakage Current Quiescent Device Current Additional Quiescent Device Current Per Input Pin: 1 Unit Load (Note 4) NOTE: 4. For dual-supply systems theoretical worst case (VI = 2.4V, VCC = 5.5V) specification is 1.8mA. HCT Input Loading Table INPUT UNIT LOADS MR 1.5 Data 0.4 CP 1.5 NOTE: Unit Load is ∆ICC limit specified in DC Electrical Specifications table, e.g., 360µA max at 25oC. Prerequisite For Switching Specifications PARAMETER SYMBOL TEST CONDITIONS fMAX - VCC (V) 25oC MIN TYP -40oC TO 85oC -55oC TO 125oC MAX MIN MAX MIN MAX UNITS HC TYPES Maximum Clock Frequency (Figure 1) MR Pulse Width (Figure 1) tW - 2 6 - - 5 - 4 - MHz 4.5 30 - - 25 - 20 - MHz 6 35 - - 29 - 23 - MHz 2 60 - - 75 - 90 - ns 4.5 12 - - 15 - 18 - ns 6 10 - - 13 - 15 - ns 4 CD74HC273, CD74HCT273 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 60 - - 75 - 70 - ns 4.5 12 - - 15 - 18 - ns 6 10 - - 13 - 15 - ns 2 3 - - 3 - 3 - ns 4.5 3 - - 3 - 3 - ns 6 3 - - 3 - 3 - ns 2 50 - - 65 - 75 - ns 4.5 10 - - 13 - 15 - ns 6 9 - - 11 - 13 - ns Clock Pulse Width (Figure 1) Set-up Time Data to Clock (Figure 5) tSU Hold Time, Data to Clock (Figure 5) - tH Removal Time, MR to Clock (Continued) - tREM - HCT TYPES Maximum Clock Frequency (Figure 2) fMAX - 4.5 25 - - 20 - 16 - MHz tw - 4.5 12 - - 15 - 18 - ns MR Pulse Width (Figure 2) Clock Pulse Width (Figure 2) tw - 4.5 20 - - 25 - 30 - ns tSU - 4.5 12 - - 15 - 18 - ns tH - 4.5 3 - - 3 - 3 - ns tREM - 4.5 10 - - 13 - 15 - ns Set-up Time Data to Clock (Figure 6) Hold Time, Data to Clock (Figure 6) Removal Time, MR to Clock 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 30 38 ns CL = 15pF 5 12 - - - ns CL = 50pF 2 - 150 190 225 ns 4.5 - 30 38 45 ns 6 - 26 30 38 ns 2 - 75 95 110 ns 4.5 - 15 19 22 ns 6 - 13 16 19 ns - - 10 10 10 pF 5 60 - - - MHz HC TYPES Propagation Delay, Clock to Output (Figure 3) Propagation Delay, MR to Output (Figure 3) Output Transition Time (Figure 3) Input Capacitance Maximum Clock Frequency tPHL tTLH, tTHL CI fMAX CL = 50pF CL = 15pF 5 CD74HC273, CD74HCT273 Switching Specifications PARAMETER Input tr, tf = 6ns (Continued) 25oC -40oC TO 85oC -55oC TO 125oC SYMBOL TEST CONDITIONS VCC (V) TYP MAX MAX MAX UNITS CPD - 5 25 - - - pF CL = 50pF 4.5 - 30 38 45 ns CL = 15pF 5 12 - - - ns Power Dissipation Capacitance (Notes 5, 6) HCT TYPES Propagation Delay, Clock to Output (Figure 4) tPLH, tPHL Propagation Delay, MR to Output (Figure 4) tPHL CL = 50pF 4.5 - 32 40 48 ns Output Transition Time tTLH, tTHL CL = 50pF 4.5 - 15 19 22 ns - - 10 10 10 pF 5 50 - - - MHz 5 25 - - - pF Input Capacitance CIN Maximum Clock Frequency fMAX Power Dissipation Capacitance (Notes 5, 6) CPD CL = 15pF - NOTES: 5. CPD is used to determine the dynamic power consumption, per flip-flop. 6. PD = CPD VCC2 fi + ∑ (CL VCC2 + fO) where fi = Input Frequency, fO = Output Frequency, CL = Output Load Capacitance, VCC = Supply Voltage. Test Circuits and Waveforms tfCL trCL CLOCK tWL + tWH = 90% 10% I fCL CLOCK 50% 50% 1.3V 0.3V FIGURE 2. HCT CLOCK PULSE RISE AND FALL TIMES AND PULSE WIDTH tf = 6ns tf = 6ns tr = 6ns VCC 90% 50% 10% GND tTLH GND tTHL 90% 50% 10% INVERTING OUTPUT 3V 2.7V 1.3V 0.3V INPUT tTHL GND tWH NOTE: Outputs should be switching from 10% VCC to 90% VCC in accordance with device truth table. For fMAX, input duty cycle = 50%. FIGURE 1. HC CLOCK PULSE RISE AND FALL TIMES AND PULSE WIDTH tr = 6ns 1.3V 1.3V tWL tWH NOTE: Outputs should be switching from 10% VCC to 90% VCC in accordance with device truth table. For fMAX, input duty cycle = 50%. tPHL 2.7V 0.3V GND tWL INPUT tfCL = 6ns I fCL 3V VCC 50% 10% tWL + tWH = trCL = 6ns tTLH 90% 1.3V 10% INVERTING OUTPUT tPHL tPLH FIGURE 3. HC AND HCU TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC tPLH FIGURE 4. HCT TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC 6 CD74HC273, CD74HCT273 Test Circuits and Waveforms trCL tfCL trCL CLOCK INPUT (Continued) VCC 90% GND tH(H) GND tH(H) VCC 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 tREM VCC SET, RESET OR PRESET 1.3V 0.3V tH(L) DATA INPUT 3V 2.7V CLOCK INPUT 50% 10% tfCL CL 50pF FIGURE 6. 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