HEF4538BT,653

HEF4538B Dual precision monostable multivibrator Rev. 11 — 19 October 2018 Product data sheet 1. General description The HEF4538B is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has an active LOW trigger/retrigger input (nA), an active HIGH trigger/retrigger input (nB), an overriding active LOW direct reset input (nCD), an output (nQ) and its complement (nQ), and two pins (nREXT/CEXT, and nCEXT, always connected to ground) for connecting the external timing components CEXT and REXT. Typical pulse width variation over the specified temperature range is ±0.2 %. The multivibrator may be triggered by either the positive or the negative edges of the input pulse and will produce an accurate output pulse with a pulse width range of 10 μs to infinity. The duration and accuracy of the output pulse are determined by the external timing components CEXT and REXT. The output pulse width (tW) is equal to REXT × CEXT. The linear design techniques in LOCMOS (Local Oxide CMOS) guarantee precise control of the output pulse width. A LOW level at nCD terminates the output pulse immediately. The trigger inputs’ Schmitt trigger action makes the circuit highly tolerant of slower rise and fall times. It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input. 2. Features and benefits • • • • • • Tolerant of slow trigger rise and fall times Fully static operation 5 V, 10 V, and 15 V parametric ratings Standardized symmetrical output characteristics Specified from -40 °C to +85 °C and -40 °C to +125 °C Complies with JEDEC standard JESD 13-B 3. Ordering information Table 1. Ordering information Type number Package HEF4538BT Temperature range Name Description Version -40 °C to +125 °C SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 HEF4538B Nexperia Dual precision monostable multivibrator 4. Functional diagram 2 1REXT/CEXT 1 1CEXT 5 1A 4 1B 3 1CD 14 2REXT/CEXT 15 2CEXT 11 2A 12 2B 13 2CD 1Q 6 1Q 7 2Q 10 2Q 9 001aae727 Fig. 1. Functional diagram nB nA VDD nREXT/CEXT Vref1 enable nCEXT nQ VSS nCD nQ Vref2 enable 001aae734 Fig. 2. Logic diagram (one multivibrator) HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 2 / 14 HEF4538B Nexperia Dual precision monostable multivibrator 5. Pinning information 5.1. Pinning HEF4538B 1CEXT 1 16 VDD 1REXT/CEXT 2 15 2CEXT 1CD 3 14 2REXT/CEXT 1B 4 13 2CD 1A 5 12 2B 1Q 6 11 2A 1Q 7 10 2Q VSS 8 9 2Q 001aae733 Fig. 3. Pin configuration SOT109-1 (SO16) 5.2. Pin description Table 2. Pin description Symbol Pin Description 1CEXT, 2CEXT 1, 15 external capacitor connection (always connected to ground) 1REXT/CEXT, 2REXT/CEXT 2, 14 external capacitor/resistor connection 1CD, 2CD 3, 13 direct reset input (active LOW) 1B, 2B 4, 12 input (LOW-to-HIGH triggered) 1A, 2A 5, 11 input (HIGH-to-LOW triggered) 1Q, 2Q 6, 10 output 1Q, 2Q 7, 9 complementary output (active LOW) VSS 8 ground supply voltage VDD 16 supply voltage 6. Functional description Table 3. Function table H = HIGH voltage level; L = LOW voltage level; X = don’t care; ↑ = positive-going transition; ↓ = negative-going transition; = one HIGH level output pulse, with the pulse width determined by CEXT and REXT; = one LOW level output pulse, with the pulse width determined by CEXT and REXT. Inputs Outputs nA nB nCD ↓ L H H ↑ H X X L HEF4538B Product data sheet nQ nQ L H All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 3 / 14 HEF4538B Nexperia Dual precision monostable multivibrator (1) (1) (2) (1) nB input (3) nA input (4) nCD input nREXT/CEXT input Vref2 Vref1 Vref1 Vref2 nQ output T T (5) T 001aae737 (1) Positive edge triggering. (2) Positive edge re-triggering (pulse lengthening). (3) Negative edge triggering. (4) Reset (pulse shortening). (5) T = REXT x CEXT. Fig. 4. Timing diagram CEXT nCEXT REXT nREXT/CEXT T nQ T = REXT × CEXT nA nB nQ nCD Fig. 5. VDD 001aae735 Connection of the external timing components REXT and CEXT 7. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to VSS = 0 V (ground) Symbol Parameter VDD supply voltage IIK input clamping current VI input voltage IOK output clamping current II/O input/output current IDD supply current Tstg Min Max Unit -0.5 +18 V - ±10 mA -0.5 VDD + 0.5 - ±10 mA - ±10 mA - 50 mA storage temperature -65 +150 °C Tamb ambient temperature -40 +125 °C Ptot total power dissipation Tamb = -40 °C to +125 °C - 500 mW P power dissipation per output - 100 mW [1] Conditions VI < -0.5 V or VI > VDD + 0.5 V VI < -0.5 V or VI > VDD + 0.5 V [1] V For SO16 package: Ptot derates linearly with 8 mW/K above 70 °C. HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 4 / 14 HEF4538B Nexperia Dual precision monostable multivibrator 8. Recommended operating conditions Table 5. Recommended operating conditions Symbol Parameter Conditions Min Typ Max Unit VDD supply voltage 3 - 15 V VI input voltage 0 - VDD V Tamb ambient temperature in free air -40 - +125 °C Δt/ΔV input transition rise and fall rate VDD = 5 V - - 3.75 μs/V VDD = 10 V - - 0.5 μs/V VDD = 15 V - - 0.08 μs/V 9. Static characteristics Table 6. Static characteristics VSS = 0 V; VI = VSS or VDD unless otherwise specified. Symbol Parameter VIH VIL VOH VOL IOH IOL II CI Conditions Max Min Max Min Max 5V 3.5 - 3.5 - 3.5 - 3.5 - V 10 V 7.0 - 7.0 - 7.0 - 7.0 - V 15 V 11.0 - 11.0 - 11.0 - 11.0 - V 5V - 1.5 - 1.5 - 1.5 - 1.5 V 10 V - 3.0 - 3.0 - 3.0 - 3.0 V 15 V - 4.0 - 4.0 - 4.0 - 4.0 V 5V 4.95 - 4.95 - 4.95 - 4.95 - V 10 V 9.95 - 9.95 - 9.95 - 9.95 - V 15 V 14.95 - 14.95 - 14.95 - 14.95 - V 5V - 0.05 - 0.05 - 0.05 - 0.05 V 10 V - 0.05 - 0.05 - 0.05 - 0.05 V 15 V - 0.05 - 0.05 - 0.05 - 0.05 V VO = 2.5 V 5V - -1.7 - -1.4 - -1.1 - -1.1 mA VO = 4.6 V 5V - -0.64 - -0.5 - -0.36 - -0.36 mA VO = 9.5 V 10 V - -1.6 - -1.3 - -0.9 - -0.9 mA VO = 13.5 V 15 V - -4.2 - -3.4 - -2.4 - -2.4 mA VO = 0.4 V 5V 0.64 - 0.5 - 0.36 - 0.36 - mA VO = 0.5 V 10 V 1.6 - 1.3 - 0.9 - 0.9 - mA VO = 1.5 V 15 V 4.2 - 3.4 - 2.4 - 2.4 - mA nA, nB 15 V - ±0.1 - ±0.1 - ±1.0 - ±1.0 μA nREXT/CEXT 15 V - ±0.3 - ±0.1 - ±1.0 - ±1.0 μA - - - - 7.5 - - - - |IO| < 1 μA LOW-level output current input leakage current input capacitance HEF4538B Product data sheet Tamb = 85 °C Tamb = 125 °C Unit Min LOW-level input voltage HIGH-level output current Tamb = 25 °C Max |IO| < 1 μA LOW-level output voltage Tamb = -40 °C Min HIGH-level input voltage HIGH-level output voltage VDD |IO| < 1 μA |IO| < 1 μA All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © pF Nexperia B.V. 2018. All rights reserved 5 / 14 HEF4538B Nexperia Dual precision monostable multivibrator Table 7. Typical static characteristics VSS = 0 V; VI = VSS or VDD; Tamb = +25 °C. Symbol Parameter Conditions VDD IDD supply current active state 5V CI [1] input capacitance nREXT/CEXT Typ [1] Unit 55 μA 10 V 150 μA 15 V 220 μA - 15 pF Only one monostable is switching: for the specified current during the output pulse (output nQ is HIGH). 10. Dynamic characteristics Table 8. Dynamic characteristics VSS = 0 V; Tamb = 25 °C; for test circuit see Fig. 11. Symbol Parameter Conditions VDD Extrapolation formula[1] tPHL nA, nB to nQ; see Fig. 6 5V HIGH to LOW propagation delay nCD to nQ; see Fig. 6 tPLH LOW to HIGH propagation delay nA, nB to nQ; see Fig. 6 nCD to nQ; see Fig. 6 Min Typ Max Unit 193 ns + (0.55 ns/pF) CL - 220 440 ns 10 V 74 ns + (0.23 ns/pF) CL - 85 190 ns 15 V 52 ns + (0.16 ns/pF) CL - 60 120 ns 5V 98 ns + (0.55 ns/pF) CL - 125 250 ns 10 V 44 ns + (0.23 ns/pF) CL - 55 110 ns 15 V 32 ns + (0.16 ns/pF) CL - 40 80 ns 5V 173 ns + (0.55 ns/pF) CL - 200 460 ns 10 V 79 ns + (0.23 ns/pF) CL - 90 180 ns 15 V 52 ns + (0.16 ns/pF) CL - 60 120 ns 5V 98 ns + (0.55 ns/pF) CL - 125 250 ns 10 V 44 ns + (0.23 ns/pF) CL - 55 110 ns 32 ns + (0.16 ns/pF) CL - 40 80 ns [2] 10 ns + (1.00 ns/pF) CL - 60 120 ns 15 V tt trec trtrig transition time recovery time retrigger time HEF4538B Product data sheet 5V see Fig. 6 nCD to nA, nB; see Fig. 7 nQ, nQ to nA, nB; see Fig. 7 10 V 9 ns + (0.42 ns/pF) CL - 30 60 ns 15 V 6 ns + (0.28 ns/pF) CL - 20 40 ns 5V - 20 40 ns 10 V - 10 20 ns 15 V - 5 10 ns 5V 0 - - ns 10 V 0 - - ns 15 V 0 - - ns All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 6 / 14 HEF4538B Nexperia Dual precision monostable multivibrator Symbol Parameter Conditions VDD tW nA LOW; minimum width; see Fig. 7 pulse width Min Typ Max 5V 90 45 - ns 10 V 30 15 - ns 15 V 24 12 - ns 5V 50 25 - ns 10 V 24 12 - ns 15 V 20 10 - ns nCD LOW; minimum width; 5 V see Fig. 7 10 V 55 25 - ns 25 12 - ns 15 V 20 10 - ns 5V 218 230 242 μs 10 V 213 224 235 μs 15 V 211 223 234 μs nQ or nQ ; REXT = 100 kΩ; 5 V CEXT = 0.1 μF; see Fig. 7 10 V 10.3 10.8 11.3 ms 10.2 10.7 11.2 ms 15 V 10.1 10.6 11.1 ms 5V 1.01 1.09 1.11 s 10 V 0.99 1.04 1.09 s 15 V 0.99 1.04 1.09 s 5V - ±0.2 - % 10 V - ±0.2 - % 15 V - ±0.2 - % - ±1.5 - % 5V - ±1 - % 10 V - ±1 - % 15 V - ±1 - % nB HIGH;minimum width; see Fig. 7 nQ or nQ; REXT = 100 kΩ; CEXT =2.0 nF; see Fig. 7 nQ or nQ; REXT = 100 kΩ; CEXT = 10 μF; see Fig. 7 ΔtW pulse width variation nQ or nQ variation over temperature range; see Fig. 8 Extrapolation formula[1] nQ or nQ variation over VDD voltage range 5 V to 15 V; see Fig. 9 nQ or nQ variation between monostables in the same device; REXT = 100 kΩ; CEXT = 2 nF to 10 μF Unit REXT external timing resistor 5 - [3] kΩ CEXT external timing capacitor 2000 - no limits pF [1] [2] [3] The typical values of the propagation delay and transition times are calculated from the extrapolation formulas shown (CL in pF). tt is the same as tTHL and tTLH. The maximum permissible resistance REXT, which holds the specified accuracy of tW (nQ, nQ output), depends on the leakage current of the capacitor CEXT and the leakage current of the HEF4538B. HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 7 / 14 HEF4538B Nexperia Dual precision monostable multivibrator 10.1. Waveforms and test circuit VI tr nB input 0V VI tf 90 % VM 10 % tW tf tr 90 % nA input 10 % 0V VM tW VI VM nCD input 0V VOH nQ output tPLH VM VOL VOH nQ output tPLH 90 % VM 10 % VM tTHL tPHL tPHL tTLH tPHL tPLH 90 % VM VOL VM 10 % tTHL tTLH 001aae736 Measurement points are given in Table 9. Logic levels: VOL and VOH are typical output levels that occur with the output load. Fig. 6. Waveforms showing propagation delays Table 9. Measurement points Supply voltage Input Output VDD VM VM 5 V to 15 V 0.5VDD 0.5VDD HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 8 / 14 HEF4538B Nexperia Dual precision monostable multivibrator VI nCD input VM 0V tW trec tW VI nA input 0V tW VI nB input 0V tretrig VOH nQ output VM VOL tW 001aaj491 Measurement points are given in Table 9. Recovery times are shown as positive values but may be specified as negative values. Logic levels: VOL and VOH are typical output levels that occur with the output load. Fig. 7. Waveforms showing minimum nCD, nA, nB, and nQ pulse widths, recovery and retrigger times 001aae738 3 tW (%) 001aae739 3 tW (%) 2 (1) 2 (1) 1 1 (2) 0 (2) 0 (3) (3) -1 -2 -60 -1 -20 20 60 100 140 Tamb (°C) -2 -60 -20 20 60 100 140 Tamb (°C) a. REXT = 100 kΩ; CEXT = 100 nF b. REXT = 100 kΩ; CEXT = 2 nF (1) VDD = 5 V (2) VDD = 10 V (3) VDD = 15 V ΔtW = 0 % at VDD = 10 V and Tamb = 25 °C (1) VDD = 5 V (2) VDD = 10 V (3) VDD = 15 V ΔtW = 0 % at VDD = 10 V and Tamb = 25 °C Fig. 8. Typical normalized change in output pulse width as a function of ambient temperature HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 9 / 14 HEF4538B Nexperia Dual precision monostable multivibrator 001aae740 3 ΔtW (%) 2 001aae741 103 (1) IDD (µA) 102 (2) 1 (1) 10 (2) 0 (3) 1 -1 -2 0 4 8 12 VDD (V) 10- 1 10- 2 16 10- 1 1 10 δ (%) 102 Tamb = 25 °C; ΔtW = 0 % at VDD = 10 V; REXT = 100 kΩ (1) CEXT = 2 nF (2) CEXT = 100 nF REXT = 100 kΩ; CEXT = 100 nF; CL = 50 pF; one monostable multivibrator switching only (1) VDD = 15 V (2) VDD = 10 V (3) VDD = 5 V Fig. 9. Fig. 10. Total supply current as a function of the output duty factor Typical normalized change in output pulse width as a function of the supply voltage VI negative pulse tW 90 % 90 % VM VM 10 % 0V 10 % tf tr VI positive pulse 0V tr VDD tf 90 % G 90 % VM VI VM 10 % CL RT 10 % tW VO DUT 001aaj781 001aag182 a. Input waveforms b. Test circuit Test data is given in Table 10. Definitions for test circuit: DUT = Device Under Test. CL = load capacitance including jig and probe capacitance. RT = termination resistance should be equal to the output impedance Zo of the pulse generator. Fig. 11. Test circuit for measuring switching times Table 10. Test data Supply voltage Input VDD VI tr, tf CL 5 V to 15 V VSS or VDD ≤ 20 ns 50 pF HEF4538B Product data sheet Load All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 10 / 14 HEF4538B Nexperia Dual precision monostable multivibrator 11. Package outline SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 D E A X c y HE v M A Z 16 9 Q A2 A (A 3) A1 pin 1 index θ Lp 1 L 8 e w M bp 0 2.5 detail X 5 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y Z (1) mm 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 10.0 9.8 4.0 3.8 1.27 6.2 5.8 1.05 1.0 0.4 0.7 0.6 0.25 0.25 0.1 0.7 0.3 0.01 0.019 0.0100 0.39 0.014 0.0075 0.38 0.16 0.15 0.039 0.016 0.028 0.020 inches 0.010 0.057 0.069 0.004 0.049 0.05 0.244 0.041 0.228 0.01 0.01 0.028 0.004 0.012 θ o 8 o 0 Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT109-1 076E07 MS-012 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 Fig. 12. Package outline SOT109-1 (SO16) HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 11 / 14 HEF4538B Nexperia Dual precision monostable multivibrator 12. Abbreviations Table 11. Abbreviations Acronym Description CMOS Complementary Metal-Oxide Semiconductor DUT Device Under Test 13. Revision history Table 12. Revision history Document ID Release date Data sheet status Change notice Supersedes HEF4538B v.11 20181019 Product data sheet - HEF4538B v.10 Modifications: • • The format of this data sheet has been redesigned to comply with the identity guidelines of Nexperia. Legal texts have been adapted to the new company name where appropriate. HEF4538B v.10 20160401 Modifications: • HEF4538B v.9 20131210 Modifications: • HEF4538B v.8 20111116 Product data sheet - HEF4538B v.7 HEF4538B v.7 20110217 Product data sheet - HEF4538B v.6 HEF4538B v.6 20091102 Product data sheet - HEF4538B v.5 HEF4538B v.5 20090304 Product data sheet - HEF4538B v.4 HEF4538B v.4 20090206 Product data sheet - HEF4538B_CNV v.3 HEF4538B_CNV v.3 19950101 Product specification - HEF4538B_CNV v.2 HEF4538B_CNV v.2 19950101 Product specification - - HEF4538B Product data sheet Product data sheet - HEF4538B v.9 Type number HEF4538BP (SOT38-4) removed. Product data sheet - HEF4538B v.8 Fig. 8 and Fig. 9 updated to show output pulse width over full temperature range. All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 12 / 14 HEF4538B Nexperia Dual precision monostable multivibrator 14. Legal information injury, death or severe property or environmental damage. Nexperia and its suppliers accept no liability for inclusion and/or use of Nexperia products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Data sheet status Quick reference data — The Quick reference data is an extract of the product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding. Document status [1][2] Product status [3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification. [1] [2] [3] Please consult the most recently issued document before initiating or completing a design. The term 'short data sheet' is explained in section "Definitions". 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For detailed and full information see the relevant full data sheet, which is available on request via the local Nexperia sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. Product specification — The information and data provided in a Product data sheet shall define the specification of the product as agreed between Nexperia and its customer, unless Nexperia and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the Nexperia product is deemed to offer functions and qualities beyond those described in the Product data sheet. Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, Nexperia does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Nexperia takes no responsibility for the content in this document if provided by an information source outside of Nexperia. In no event shall Nexperia be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, Nexperia’s aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of Nexperia. Right to make changes — Nexperia reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use — Nexperia products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an Nexperia product can reasonably be expected to result in personal HEF4538B Product data sheet Applications — Applications that are described herein for any of these products are for illustrative purposes only. Nexperia makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using Nexperia products, and Nexperia accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the Nexperia product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. Nexperia does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using Nexperia products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). Nexperia does not accept any liability in this respect. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. 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Non-automotive qualified products — Unless this data sheet expressly states that this specific Nexperia product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. Nexperia accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without Nexperia’s warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond Nexperia’s specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies Nexperia for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond Nexperia’s standard warranty and Nexperia’s product specifications. Translations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions. Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 13 / 14 HEF4538B Nexperia Dual precision monostable multivibrator Contents 1. General description...................................................... 1 2. Features and benefits.................................................. 1 3. Ordering information....................................................1 4. Functional diagram.......................................................2 5. Pinning information......................................................3 5.1. Pinning.........................................................................3 5.2. Pin description............................................................. 3 6. Functional description................................................. 3 7. Limiting values............................................................. 4 8. Recommended operating conditions..........................5 9. Static characteristics....................................................5 10. Dynamic characteristics............................................ 6 10.1. Waveforms and test circuit........................................ 8 11. Package outline........................................................ 11 12. Abbreviations............................................................ 12 13. Revision history........................................................12 14. Legal information......................................................13 © Nexperia B.V. 2018. All rights reserved For more information, please visit: http://www.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com Date of release: 19 October 2018 HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 11 — 19 October 2018 © Nexperia B.V. 2018. All rights reserved 14 / 14 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Nexperia: HEF4538BT,652 HEF4538BT,653