CD74HC4538EE4

[ /Title (CD54 HC453 8, CD74 HC453 8, CD74 HCT45 38) /Subject (High Speed CMOS Logic CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538 Data sheet acquired from Harris Semiconductor SCHS123E June 1998 - Revised October 2003 High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator Features Description • Retriggerable/Resettable Capability The ’HC4538 and ’HCT4538 are dual retriggerable/resettable monostable precision multivibrators for fixed voltage timing applications. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of RX and CX provides a wide range of output pulse widths from the Q and Q terminals. The propagation delay from trigger input-tooutput transition and the propagation delay from reset inputto-output transition are independent of RX and CX. • Trigger and Reset Propagation Delays Independent of RX, CX • Triggering from the Leading or Trailing Edge • Q and Q Buffered Outputs Available • Separate Resets • Wide Range of Output Pulse Widths Leading-edge triggering (A) and trailing edge triggering (B) inputs are provided for triggering from either edge of the input pulse. An unused “A” input should be tied to GND and an unused B should be tied to VCC. On power up the IC is reset. Unused resets and sections must be terminated. In normal operation the circuit retriggers on the application of each new trigger pulse. To operate in the non-triggerable mode Q is connected to B when leading edge triggering (A) is used or Q is connected to A when trailing edge triggering (B) is used. The period (τ) can be calculated from τ = (0.7) RX, CX; RMIN is 5kΩ. CMIN is 0pF. • Schmitt Trigger Input on A and B Inputs • Retrigger Time is Independent of CX • 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 PART NUMBER TEMP. RANGE (oC) PACKAGE CD54HC4538F3A -55 to 125 16 Ld CERDIP • 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 CD54HCT4538F3A -55 to 125 16 Ld CERDIP CD74HC4538E -55 to 125 16 Ld PDIP CD74HC4538M -55 to 125 16 Ld SOIC CD74HC4538MT -55 to 125 16 Ld SOIC Pinout CD74HC4538M96 -55 to 125 16 Ld SOIC CD74HC4538NSR -55 to 125 16 Ld SOP CD74HC4538PW -55 to 125 16 Ld TSSOP CD74HC4538PWR -55 to 125 16 Ld TSSOP CD74HC4538PWT -55 to 125 16 Ld TSSOP CD74HCT4538E -55 to 125 16 Ld PDIP CD54HC4538, CD54HCT4538 (CERDIP) CD74HC4538 (PDIP, SOIC, SOP, TSSOP) CD74HCT4538 (PDIP, SOIC) TOP VIEW 1CX 1 16 VCC 1RXCX 2 15 2CX CD74HCT4538M -55 to 125 16 Ld SOIC 1R 3 14 2RXCX CD74HCT4538MT -55 to 125 16 Ld SOIC 1A 4 13 2R 1B 5 12 2A CD74HCT4538M96 -55 to 125 16 Ld SOIC 1Q 6 11 2B 1Q 7 10 2Q GND 8 9 2Q NOTE: When ordering, use the entire part number. The suffixes 96 and R denote tape and reel. The suffix T denotes a small-quantity reel of 250. CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © 2003, Texas Instruments Incorporated 1 CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538 Functional Diagram 1Cx 1Rx VCC 1 2 1Cx 1RxCx 6 4 1A 1Q MONO 1 5 7 1B 1Q 3 1R 2R 13 10 12 2Q 2A MONO 2 11 9 2B 2Q 2Cx 2RxCx 15 GND = 8 VCC = 16 14 VCC 2Cx 2Rx TRUTH TABLE R2 INPUTS OUTPUTS R A B Q Q L X X L H CL R1 p n D X H X L H X X L L H Q CL CL CL Q H L ↓ p n H ↑ H CL H = High Level, L = Low Level, ↑ = Transition from Low to High, ↓ = Transition from High to Low, One High Level Pulse, One Low Level Pulse, X = Irrelevant. CL p n CL FIGURE 1. FF DETAIL 2 R1 CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538 16 VCC VCC VCC VCC RX 2(14) CX COMP II + R1 6(10) Q - 1(15) R2 VCC VCC 8 7(9) Q HIGH Z 3(13) R VCC 4(12) D R1 A CL 5(11) R2 Q FF CL Q B FIGURE 2. LOGIC DIAGRAM (1 MONO) FUNCTIONAL TERMINAL CONNECTIONS VCC TO TERMINAL NUMBER GND TO TERMINAL NUMBER INPUT PULSE TO TERMINAL NUMBER MONO1 MONO2 MONO1 MONO1 MONO2 3, 5 11, 13 4 12 Leading-Edge Trigger/Non-Retriggerable 3 13 4 12 Trailing-Edge Trigger/Retriggerable 3 13 5 11 Trailing-Edge Trigger/Non-Retriggerable 3 13 5 11 FUNCTION Leading-Edge Trigger/Retriggerable MONO2 4 12 OTHER CONNECTIONS MONO1 MONO2 5-7 11-9 4-6 12-10 NOTES: 1. A retriggerable one-shot multivibrator has an output pulse width which is extended one full time period (T) after application of the last trigger pulse. 2. A non-triggerable one-shot multivibrator has a time period (T) referenced from the application of the first trigger pulse. T FIGURE 3. INPUT PULSE TRAIN FIGURE 4. RETRIGGERABLE MODE PULSE WIDTH (A MODE) 3 T FIGURE 5. NON-RETRIGGERABLE MODE PULSE WIDTH (A MODE) CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538 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 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 Package Thermal Impedance, θJA (see Note 5): E (PDIP) Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67oC/W M (SOIC) Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73oC/W NS (SOP) Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64oC/W PW (TSSOP) Package . . . . . . . . . . . . . . . . . . . . . . . . . 108oC/W 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 (Note 3) 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 Times, tr, tf Reset Input: 2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max) 4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max) 6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max) Trigger Inputs A or B: 2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited (Max) 4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited (Max) 6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited (Max) External Timing Resistor, RX (Note 4) . . . . . . . . . . . . . . . .5kΩ (Min) External Timing Capacitor, CX (Note 4) . . . . . . . . . . . . . . . . . 0 (Min) 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. NOTES: 3. Unless otherwise specified, all voltages are referenced to ground. 4. The maximum allowable values of RX and CX are a function of leakage of capacitor CX, the leakage of the ’HC4538, and leakage due to board layout and surface resistance. Values of RX and CX should be chosen so that the maximum current into pin 2 or pin 14 is 30mA. Susceptibility to externally induced noise signals may occur for RX > 1MΩ. 5. The package thermal impedance is calculated in accordance with JESD 51-7. DC Electrical Specifications TEST CONDITIONS PARAMETER 25oC -40oC TO 85oC -55oC TO 125oC SYMBOL VI (V) IO (mA) VCC (V) VIH - - 2 1.5 - - 1.5 4.5 3.15 - - 3.15 - 3.15 - V 6 4.2 - - 4.2 - 4.2 - V MIN TYP MAX MIN MAX MIN MAX UNITS - 1.5 - V HC TYPES High Level Input Voltage Low Level Input Voltage High Level Output Voltage CMOS Loads High Level Output Voltage TTL Loads VIL VOH - VIH or VIL - 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 - - - - - - - - - V -4 4.5 3.98 - - 3.84 - 3.7 - V -5.2 6 5.48 - - 5.34 - 5.2 - V 4 CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538 DC Electrical Specifications (Continued) TEST CONDITIONS PARAMETER Low Level Output Voltage CMOS Loads 25oC -40oC TO 85oC -55oC TO 125oC SYMBOL VI (V) IO (mA) VOL VIH or VIL 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 Low Level Output Voltage TTL Loads Input Leakage Current A, B, R VCC (V) II VCC or GND Input Leakage Current RXCX (Note 6) MIN TYP MAX MIN MAX MIN MAX UNITS - - - - - - - - - V 4 4.5 - - 0.26 - 0.33 - 0.4 V 5.2 6 - - 0.26 - 0.33 - 0.4 V - 6 - - ±0.1 - ±1 - ±1 µA - 6 - - ±0.05 - ±0.5 - ±0.5 µA Quiescent Device Current ICC VCC or GND 0 6 - - 8 - 80 - 160 µA Active Device Current Q = High & Pins 2, 14 at VCC/4 ICC VCC or GND 0 6 - - 0.6 - 0.8 - 1 mA High Level Input Voltage VIH - - 4.5 to 5.5 2 - - 2 - 2 - V Low Level Input Voltage VIL - - 4.5 to 5.5 - - 0.8 - 0.8 - 0.8 V High Level Output Voltage CMOS Loads VOH VIH or VIL -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 - 5.5 - ±0.1 - ±1 - ±1 µA - 5.5 - - ±0.05 - ±0.5 - ±0.5 µA HCT TYPES 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 II VCC and GND Input Leakage Current RXCX (Note 6) Quiescent Device Current ICC VCC or GND 0 5.5 - - 8 - 80 - 160 µA Active Device Current Q = High & Pins 2, 14 at VCC/4 ICC VCC or GND 0 5.5 - - 0.6 - 0.8 - 1 mA Additional Quiescent Device Current Per Input Pin: 1 Unit Load ∆ICC (Note 7) VCC -2.1 - 4.5 to 5.5 - 100 360 - 450 - 490 µA NOTES: 6. When testing IIL the Q output must be high. If Q is low (device not triggered) the pull-up P device will be ON and the low resistance path from VDD to the test pin will cause a current far exceeding the specification. 7. For dual-supply systems theoretical worst case (VI = 2.4V, VCC = 5.5V) specification is 1.8mA. 5 CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538 HCT Input Loading Table INPUT UNIT LOADS All 0.5 NOTE: Unit Load is ∆ICC limit specified in DC Electrical Table, e.g. 360µA max at 25oC. Prerequisite for Switching Specifications 25oC PARAMETER SYMBOL -40oC TO 85oC -55oC TO 125oC VCC (V) MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS 2 80 - - 100 - - 120 - - ns 4.5 16 - - 20 - - 24 - - ns 6 14 - - 17 - - 20 - - ns 2 80 - - 100 - - 120 - - ns 4.5 16 - - 20 - - 24 - - ns 6 14 - - 17 - - 20 - - ns 2 5 - - 5 - - 5 - - ns 4.5 5 - - 5 - - 5 - - ns 6 5 - - 5 - - 5 - - ns 5 - 175 - - - - - - - ns 4.5 16 - - 20 - - 24 - - ns tWL 4.5 20 - - 25 - - 30 - - ns tREC 4.5 5 - - 5 - - 5 - - ns trT 5 - 175 - - - - - - - ns HC TYPES Input Pulse Widths tWH, tWL A, B R Reset Recovery Time Retrigger Time (Figure 11) tWL tREC trT HCT TYPES Input Pulse Widths tWH, tWL A, B R Reset Recovery Time Retrigger Time (Figure 11) 6 CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538 Switching Specifications CL = 50pF, Input tr, tf = 6ns, RX = 10KΩ, CX = 0 -40oC TO 85oC 25oC PARAMETER SYMBOL TEST CONDITIONS tPLH CL = 50pF -55oC TO 125oC VCC (V) MIN TYP MAX MIN MAX MIN MAX UNITS 2 - - 250 - 315 - 375 ns 4.5 - - 50 - 63 - 75 ns CL = 15pF 5 - 21 - - - - - ns CL = 50pF 6 - - 43 - 54 - 64 ns CL = 50pF 2 - - 250 - 315 - 375 ns 4.5 - - 50 - 63 - 75 ns CL = 15pF 5 - 21 - - - - - ns CL = 50pF 6 - - 43 - 54 - 64 ns CL = 50pF 2 - - 250 - 315 - 375 ns 4.5 - - 50 - 63 - 75 ns CL = 15pF 5 - 21 - - - - - ns CL = 50pF 6 - - 43 - 54 - 64 ns CL = 50pF 2 - - 250 - 315 - 375 ns 4.5 - - 50 - 63 - 75 ns CL = 15pF 5 - 21 - - - - - ns CL = 50pF 6 - - 43 - 54 - 64 ns CL = 50pF 2 - - 75 - 95 - 110 ns 4.5 - - 15 - 19 - 22 ns 6 - - 13 - 16 - 19 ns 3 0.64 - 0.78 0.612 0.812 0.605 0.819 ms 5 0.63 - 0.77 0.602 0.798 0.595 0.805 ms - ±1 - - - - - % HC TYPES Propagation Delay A, B to Q A, B to Q R to Q R to Q Output Transition Time tPHL tPHL tPLH tTLH, tTHL Output Pulse Width RX = 10k, CX = 0.1µF τ Output Pulse Width Match, Same Package - - CPD CL = 15pF 5 - 136 - - - - - pF CI CL = 50pF - 10 - 10 - 10 - 10 pF CL = 50pF 4.5 - - 55 - 69 - 83 ns CL = 15pF 5 - 23 - - - - - ns CL = 50pF 4.5 - - 55 - 69 - 83 ns CL = 15pF 5 - 23 - - - - - ns Power Dissipation Capacitance (Notes 8, 9) Input Capacitance CL = 50pF HCT TYPES Propagation Delay tPLH A, B to Q A, B to Q tPHL 7 CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538 Switching Specifications CL = 50pF, Input tr, tf = 6ns, RX = 10KΩ, CX = 0 (Continued) -40oC TO 85oC 25oC PARAMETER R to Q R to Q -55oC TO 125oC SYMBOL TEST CONDITIONS VCC (V) MIN TYP MAX MIN MAX MIN MAX UNITS tPHL CL = 50pF 4.5 - - 40 - 50 - 60 ns CL = 15pF 5 - 17 - - - - - ns CL = 50pF 4.5 - - 50 - 63 - 75 ns CL = 15pF 5 - 21 - - - - - ns tPLH Output Transition Time tTLH, tTHL CL = 50pF 4.5 - - 15 - 19 - 22 ns Output Pulse Width RX = 10k, CX = 0.1µF τ CL = 50pF 5 0.63 - 0.77 0.602 0.798 0.595 0.805 ms Output Pulse Width Match, Same Package - - - - ±1 - - - - - % CPD CL = 15pF 5 - 134 - - - - - pF CI CL = 50pF - 10 - 10 - 10 - 10 pF Power Dissipation Capacitance (Notes 8, 9) Input Capacitance NOTES: 8. CPD is used to determine the dynamic power consumption, per one shot. 9. PD = (CPD + CX) VCC2 fi ∑(CL VCC2 fO) where fi = input frequency, fO = output frequency, CL = output load capacitance, CX = external capacitance VCC = supply voltage assuming fi « -Iτ Test Circuits and Waveforms tr = 6ns tf = 6ns 90% 50% 10% INPUT GND tTLH GND tTHL 90% 50% 10% INVERTING OUTPUT 3V 2.7V 1.3V 0.3V INPUT tTHL tPHL tf = 6ns tr = 6ns VCC tTLH 90% 1.3V 10% INVERTING OUTPUT tPHL tPLH FIGURE 6. HC AND HCU TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC tPLH FIGURE 7. HCT TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC 8 CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538 Typical Performance Curves HC4538 - TA11646C TA = 25oC 0.70 HCT4538 - TA13646C TA = 25oC 0.70 K FACTOR K FACTOR 10kΩ, 10nF 0.69 10kΩ, 100nF 100kΩ, 100nF 0.68 0.69 10kΩ, 10nF 10kΩ, 100nF 100kΩ, 100nF 0.68 100kΩ, 10nF 100kΩ, 10nF 0.67 0.67 2 3 4 4.5 5 5.5 6 2 VCC, DC SUPPLY VOLTAGE (V) trr, TYP MIN RETRIGGER TIME (ns) K FACTOR 1.1 1.0 0.9 0.8 2kΩ 0.7 10kΩ 100kΩ 102 103 104 5 5.5 104 1.2 10 4.5 6 FIGURE 9. K FACTOR vs DC SUPPLY VOLTAGE (VCC) - V HC/HCT4538 VCC = 5V, TA = 25oC 0.6 4 VCC, DC SUPPLY VOLTAGE (V) FIGURE 8. K FACTOR vs DC SUPPLY VOLTAGE (VCC) - V 1.3 3 105 TA = 25oC RX = 10kΩ 103 VCC = 4.5V 102 VCC = 5V 10 CX, TIMING CAPACITANCE (pF) 102 103 CX, TIMING CAPACITANCE (pF) FIGURE 10. K FACTOR vs CX FIGURE 11. MINIMUM RETRIGGER TIME vs TIMING CAPACITANCE 9 104 CD54HC4538, CD74HC4538, CD54HCT4538, CD74HCT4538 Power-Down Mode During a rapid power-down condition, as would occur with a power-supply short circuit with a poorly filtered power supply, the energy stored in CX could discharge into Pin 2 or 14. To aviod possible device damage in this mode, when CX is ≥ 0.5µF, a protection diode with a 1 ampere or higher rating (1N5395 or equivalent) and a separate ground return for CX should be provided as shown in Figure 12. An alternate protection method is shown in Figure 13, where a 51Ω current-limiting resistor is inserted in series with CX. Note that a small pulse width decrease will occur however, and RX must be appropriately increased to obtain the originally desired pulse width. VCC VCC IN5395 OR EQUIVALENT RX RX 2(14) CX ≥0.5µF 16 2(14) 16 1(15) 8 51Ω + 1(15) CX ≥0.5µF 8 FIGURE 12. RAPID POWER-DOWN PROTECTION CIRCUIT FIGURE 13. ALTERNATE RAPID POWER-DOWN PROTECTION CIRCUIT 10 PACKAGE OPTION ADDENDUM www.ti.com 18-Nov-2023 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) 5962-8688601EA ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8688601EA CD54HC4538F3A Samples CD54HC4538F ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 CD54HC4538F Samples CD54HC4538F3A ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8688601EA CD54HC4538F3A Samples CD54HCT4538F3A ACTIVE CDIP J 16 25 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 CD54HCT4538F3A Samples CD74HC4538E ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type -55 to 125 CD74HC4538E Samples CD74HC4538EE4 ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type -55 to 125 CD74HC4538E Samples CD74HC4538M LIFEBUY SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC4538M CD74HC4538M96 ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC4538M Samples CD74HC4538M96E4 ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC4538M Samples CD74HC4538M96G4 ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC4538M Samples CD74HC4538ME4 LIFEBUY SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC4538M CD74HC4538MG4 LIFEBUY SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC4538M CD74HC4538MT LIFEBUY SOIC D 16 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC4538M CD74HC4538NSR ACTIVE SO NS 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC4538M Samples CD74HC4538PW LIFEBUY TSSOP PW 16 90 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HJ4538 CD74HC4538PWR ACTIVE TSSOP PW 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HJ4538 Samples CD74HC4538PWRG4 ACTIVE TSSOP PW 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HJ4538 Samples CD74HC4538PWT LIFEBUY TSSOP PW 16 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HJ4538 CD74HCT4538E ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type -55 to 125 CD74HCT4538E CD74HCT4538M LIFEBUY SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HCT4538M CD74HCT4538M96 ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HCT4538M CD74HCT4538MT LIFEBUY SOIC D 16 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HCT4538M Addendum-Page 1 Samples Samples PACKAGE OPTION ADDENDUM www.ti.com 18-Nov-2023 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of