HEF4538B Dual precision monostable multivibrator Rev. 10 — 1 April 2016 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 s 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 All types operate from 40 C to +125 C. Type number HEF4538BT Package Name Description Version SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 HEF4538B NXP Semiconductors Dual precision monostable multivibrator 4. Functional diagram 5(;7&(;7 &(;7 $ % 4 4 4 &' 5(;7&(;7 &(;7 $ % 4 &' DDH Fig 1. Functional diagram HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 2 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator Q% Q$ 9'' Q5(;7&(;7 9UHI HQDEOH Q&(;7 Q4 966 Q&' Q4 9UHI HQDEOH DDH Fig 2. Logic diagram (one multivibrator) 5. Pinning information 5.1 Pinning +()% &(;7 9'' 5(;7&(;7 &(;7 &' 5(;7&(;7 % &' $ % 4 $ 4 4 966 4 DDH Fig 3. Pin configuration HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 3 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator 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 Inputs Outputs nA nB nCD L H H H X X L [1] nQ nQ L H 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. HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 4 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator Q%LQSXW Q$LQSXW Q&'LQSXW Q5(;7&(;7LQSXW 9UHI 9UHI 9UHI 9UHI Q4RXWSXW 7 7 7 DDH (1) Positive edge triggering. (2) Positive edge re-triggering (pulse lengthening). (3) Negative edge triggering. (4) Reset (pulse shortening). (5) T = REXT CEXT. Fig 4. Timing diagram &(;7 5(;7 9'' Q5(;7&(;7 Q&(;7 7 Q4 7 5(;7î&(;7 Q$ Q% Q4 Q&' Fig 5. DDH 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 Conditions VI < 0.5 V or VI > VDD + 0.5 V VI < 0.5 V or VI > VDD + 0.5 V Min Max Unit 0.5 +18 V - 10 mA 0.5 VDD + 0.5 - 10 V mA II/O input/output current - 10 mA IDD supply current - 50 mA Tstg storage temperature HEF4538B Product data sheet 65 All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 +150 C © NXP Semiconductors N.V. 2016. All rights reserved. 5 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator Table 4. Limiting values …continued In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to VSS = 0 V (ground) Symbol Parameter Tamb ambient temperature Ptot total power dissipation Conditions [1] Max Unit 40 +125 C - 500 mW - 100 mW Tamb = 40 C to +125 C [1] SO16 package P Min power dissipation per output For SO16 package: Ptot derates linearly with 8 mW/K above 70 C. 8. Recommended operating conditions Table 5. Recommended operating conditions Symbol Parameter VDD VI Conditions Min Typ Max Unit supply voltage 3 - 15 V input voltage 0 - VDD V Tamb ambient temperature in free air 40 - +125 C t/V input transition rise and fall rate VDD = 5 V - - 3.75 s/V VDD = 10 V - - 0.5 s/V VDD = 15 V - - 0.08 s/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 Conditions HIGH-level input voltage IO < 1 A LOW-level input voltage IO < 1 A HIGH-level output voltage LOW-level output voltage HIGH-level output current HEF4538B Product data sheet VDD Tamb = 40 C Tamb = 25 C Tamb = 85 C Tamb = 125 C Unit Min Max Min 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 IO < 1 A IO < 1 A 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 All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 6 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator Table 6. Static characteristics …continued VSS = 0 V; VI = VSS or VDD unless otherwise specified. Symbol Parameter IOL LOW-level output current input leakage current II Conditions Tamb = 25 C Tamb = 85 C Tamb = 125 C Unit Min Max Min Max Min Max Min Max 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 A nREXT/CEXT 15 V - 0.3 - 0.1 - 1.0 - 1.0 A - - - - 7.5 - - - - input capacitance CI Tamb = 40 C VDD pF 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 input capacitance CI [1] nREXT/CEXT Typ Unit 55 A 10 V 150 A 15 V 220 A - 15 pF [1] 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 Figure 11. Symbol Parameter tPHL tPLH HIGH to LOW propagation delay LOW to HIGH propagation delay Conditions VDD Extrapolation formula[1] Min Typ Max Unit nA, nB to nQ; see Figure 6 5V 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 nCD to nQ; see Figure 6 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 15 V 32 ns + (0.16 ns/pF) CL - 40 80 ns 5V 10 ns + (1.00 ns/pF) CL - 60 120 ns 10 V 9 ns + (0.42 ns/pF) CL - 30 60 ns 15 V 6 ns + (0.28 ns/pF) CL - nA, nB to nQ; see Figure 6 nCD to nQ; see Figure 6 tt trec transition time recovery time HEF4538B Product data sheet see Figure 6 nCD to nA, nB; see Figure 7 40 ns 5V - 20 40 ns 10 V - 10 20 ns 15 V - 5 10 ns All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 20 © NXP Semiconductors N.V. 2016. All rights reserved. 7 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator Table 8. Dynamic characteristics …continued VSS = 0 V; Tamb = 25 C; for test circuit see Figure 11. Symbol Parameter Conditions VDD trtrig nQ, nQ to nA, nB; see Figure 7 retrigger time pulse width tW tW pulse width variation Extrapolation formula[1] Min Typ Max Unit 5V 0 - - ns 10 V 0 - - ns 15 V 0 - - ns nA LOW; minimum width; 5 V see Figure 7 10 V 90 45 - ns 30 15 - ns 15 V 24 12 - ns nB HIGH; minimum width; see Figure 7 5V 50 25 - ns 10 V 24 12 - ns 15 V 20 10 - ns nCD LOW; minimum width; see Figure 7 5V 55 25 - ns 10 V 25 12 - ns 15 V 20 10 - ns nQ or nQ; REXT = 100 k; CEXT =2.0 nF; see Figure 7 5V 218 230 242 s 10 V 213 224 235 s 15 V 211 223 234 s nQ or nQ ; REXT = 100 k; CEXT = 0.1 F; see Figure 7 5V 10.3 10.8 11.3 ms 10 V 10.2 10.7 11.2 ms 15 V 10.1 10.6 11.1 ms nQ or nQ; REXT = 100 k; CEXT = 10 F; see Figure 7 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 nQ or nQ variation over temperature range; see Figure 8 5V - 0.2 - % 10 V - 0.2 - % 15 V - 0.2 - % - 1.5 - % 5V - 1 - % 10 V - 1 - % 15 V - 1 - % nQ or nQ variation over VDD voltage range 5 V to 15 V; see Figure 9 nQ or nQ variation between monostables in the same device; REXT = 100 k; CEXT = 2 nF to 10 F REXT external timing resistor 5 - [2] k CEXT external timing capacitor 2000 - no limits pF [1] The typical values of the propagation delay and transition times are calculated from the extrapolation formulas shown (CL in pF). [2] 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 of the HEF4538B. HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 8 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator 11. Waveforms WU 9, WI 90 Q%LQSXW 9 W: WI 9, WU Q$LQSXW 9 90 W: 9, 90 Q&'LQSXW 9 W3/+ 92+ Q4RXWSXW 90 92/ W3/+ 90 90 W7+/ W7/+ W3+/ W3+/ 92+ Q4RXWSXW W3+/ W3/+ 90 92/ 90 W7+/ W7/+ DDH Measurement points are given in Table 9. Logic levels: VOL and VOH are typical output levels that occur with the output load. Fig 6. Waveforms showing propagation delays Table 9. Measurement points Supply voltage Input Output VDD VM VM 5 V to 15 V 0.5VDD 0.5VDD HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 9 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator 9, Q&'LQSXW 90 9 W: WUHF W: 9, Q$LQSXW 9 W: 9, Q%LQSXW 9 WUHWULJ 92+ Q4RXWSXW 90 92/ W: DDM Measurement points are given in Table 9. Set-up and 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 nA, nB, and nQ pulse widths and set-up, recovery and retrigger times HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 10 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator DDH DDH W: W: 7DPE& a. REXT = 100 k; CEXT = 100 nF 7DPE& b. REXT = 100 k; CEXT = 2 nF (1) VDD = 5 V. (2) VDD = 10 V. (3) VDD = 15 V. tW = 0 % at VDD = 10 V and Tamb = 25 C Fig 8. Typical normalized change in output pulse width as a function of ambient temperature DDH ǻW: DDH ,'' $ 9''9 į Tamb = 25 C; tW = 0 % at VDD = 10 V; REXT = 100 k (1) CEXT = 2 nF. REXT = 100 k; CEXT = 100 nF; CL = 50 pF; one monostable multivibrator switching only (1) VDD = 15 V. (2) CEXT = 100 nF. (2) VDD = 10 V. (3) VDD = 5 V. Fig 9. Typical normalized change in output pulse width as a function of the supply voltage HEF4538B Product data sheet Fig 10. Total supply current as a function of the output duty factor All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 11 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator 9'' * 9, 92 '87 &/ 57 DDJ Test data is given in Table 10. Definitions for test circuit: 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. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 12 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator 12. Package outline 62SODVWLFVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP 627 ' ( $ ; F \ +( Y 0 $ = 4 $ $ $ $ SLQLQGH[ ș /S / H Z 0 ES GHWDLO; PP VFDOH ',0(16,216LQFKGLPHQVLRQVDUHGHULYHGIURPWKHRULJLQDOPPGLPHQVLRQV 81,7 $ PD[ $ $ $ ES F ' ( H +( / /S 4 Y Z \ = PP LQFKHV ș R R 1RWH 3ODVWLFRUPHWDOSURWUXVLRQVRIPPLQFKPD[LPXPSHUVLGHDUHQRWLQFOXGHG 5()(5(1&(6 287/,1( 9(56,21 ,(& -('(& 627 ( 06 -(,7$ (8523($1 352-(&7,21 ,668('$7( Fig 12. Package outline SOT109-1 (SO16) HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 13 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator 13. Abbreviations Table 11. Abbreviations Acronym Description DUT Device Under Test 14. Revision history Table 12. Revision history Document ID Release date Data sheet status Change notice Supersedes HEF4538B v.10 20160401 Product data sheet - HEF4538B v.9 Modifications: HEF4538B v.9 Modifications: • Type number HEF4538BP (SOT38-4) removed. 20131210 • Product data sheet - HEF4538B v.8 Figure 8 and Figure 9 updated to show output pulse width over full temperature range. 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 All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 14 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator 15. Legal information 15.1 Data sheet status 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] Please consult the most recently issued document before initiating or completing a design. [2] The term ‘short data sheet’ is explained in section “Definitions”. [3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com. 15.2 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. 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This document supersedes and replaces all information supplied prior to the publication hereof. HEF4538B Product data sheet Suitability for use — NXP Semiconductors 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 NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors and its suppliers accept no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors 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 NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NXP Semiconductors 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. NXP Semiconductors 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 NXP Semiconductors 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). NXP 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. Terms and conditions of commercial sale — NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NXP Semiconductors hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of NXP Semiconductors products by customer. No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 15 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities. Non-automotive qualified products — Unless this data sheet expressly states that this specific NXP Semiconductors 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. NXP Semiconductors 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 NXP Semiconductors’ warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond NXP Semiconductors’ specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies NXP Semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NXP Semiconductors’ standard warranty and NXP Semiconductors’ 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. 15.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 16. Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] HEF4538B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 10 — 1 April 2016 © NXP Semiconductors N.V. 2016. All rights reserved. 16 of 17 HEF4538B NXP Semiconductors Dual precision monostable multivibrator 17. Contents 1 2 3 4 5 5.1 5.2 6 7 8 9 10 11 12 13 14 15 15.1 15.2 15.3 15.4 16 17 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 1 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functional description . . . . . . . . . . . . . . . . . . . 4 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5 Recommended operating conditions. . . . . . . . 6 Static characteristics. . . . . . . . . . . . . . . . . . . . . 6 Dynamic characteristics . . . . . . . . . . . . . . . . . . 7 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 13 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 14 Legal information. . . . . . . . . . . . . . . . . . . . . . . 15 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 15 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Contact information. . . . . . . . . . . . . . . . . . . . . 16 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP Semiconductors N.V. 2016. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] Date of release: 1 April 2016 Document identifier: HEF4538B