HEF4938BT,112

HEF4938B Dual precision monostable multivibrator Rev. 6 — 15 November 2011 Product data sheet 1. General description The HEF4938B 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 (CEXT, always connected to ground, and nREXT/CEXT) for connecting the external timing components CEXT and REXT. The 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         Separate reset inputs Triggering from leading or trailing edge 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 Complies with JEDEC standard JESD 13-B 3. Ordering information Table 1. Ordering information All types operate from 40 C to +85 C. Type number Package Name Description Version HEF4938BP DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-4 HEF4938BT SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 HEF4938B NXP Semiconductors Dual precision monostable multivibrator 4. Functional diagram 2 1REXT/CEXT 1 1CEXT 5 1A 4 1B 3 6 1Q 7 2Q 10 2Q 9 1CD 14 2REXT/CEXT 15 2CEXT 11 2A 12 2B 13 1Q 2CD 001aae727 Fig 1. Functional diagram HEF4938B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 2 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator nB nA VDD nREXT/CEXT Vref1 enable nQ nCEXT VSS nCD nQ Vref2 enable 001aae734 Fig 2. Logic diagram 5. Pinning information 5.1 Pinning HEF4938B 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 001aaj604 Fig 3. Pin configuration HEF4938B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 3 of 17 HEF4938B 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[1] 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. CEXT REXT VDD nCEXT nREXT/CEXT T nQ T = REXT × CEXT nA nB nQ nCD 001aae735 The external timing resistor REXT minimum value is 5 k Its maximum permissible resistance, which holds the specified accuracy of tW (nQ, nQ output), depends on the leakage current of the capacitor CEXT and the leakage of the HEF4938B. The external timing capacitor CEXT minimum value is 2000 pF with no upper limit. Fig 4. Connection of the external timing components REXT and CEXT HEF4938B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 4 of 17 HEF4938B NXP Semiconductors 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 T (5) 001aae737 (1) Positive edge triggering. (2) Positive edge retriggering (pulse lengthening). (3) Negative edge triggering. (4) Reset (pulse shortening). (5) T = REXT  CEXT. Fig 5. Timing diagram 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 storage temperature Tamb ambient temperature Ptot total power dissipation P power dissipation Conditions VI < 0.5 V or VI > VDD + 0.5 V Unit +18 V - 10 mA 0.5 VDD + 0.5 V 10 mA 10 mA 50 mA 65 +150 C 40 +125 C - Tamb = 40 C to +85 C DIP16 package [1] - 750 mW SO16 package [2] - 500 mW - 100 mW per output [1] For DIP16 package: Ptot derates linearly with 12 mW/K above 70 C. For SO16 package: Ptot derates linearly with 8 mW/K above 70 C. Product data sheet Max 0.5 VI < 0.5 V or VI > VDD + 0.5 V [2] HEF4938B Min All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 5 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator 8. Recommended operating conditions Table 5. Recommended operating conditions Symbol Parameter VDD Conditions Min Typ Max Unit supply voltage 3 - 15 V VI 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 IOL II IDD HIGH-level input voltage LOW-level input voltage Conditions IO < 1 A IO < 1 A HIGH-level output voltage IO < 1 A LOW-level output voltage HIGH-level output current LOW-level output current input leakage current supply current HEF4938B Product data sheet Tamb = 40 C VDD Tamb = 25 C Tamb = 85 C Unit Min Max Min Max Min Max 5V 3.5 - 3.5 - 3.5 - V 10 V 7.0 - 7.0 - 7.0 - V 15 V 11.0 - 11.0 - 11.0 - V 5V - 1.5 - 1.5 - 1.5 V 10 V - 3.0 - 3.0 - 3.0 V 15 V - 4.0 - 4.0 - 4.0 V 5V 4.95 - 4.95 - 4.95 - V 10 V 9.95 - 9.95 - 9.95 - V 15 V 14.95 - 14.95 - 14.95 - V 5V - 0.05 - 0.05 - 0.05 V 10 V - 0.05 - 0.05 - 0.05 V 15 V - 0.05 - 0.05 - 0.05 V VO = 2.5 V 5V - 1.7 - 1.4 - 1.1 mA VO = 4.6 V 5V - 0.64 - 0.5 - 0.36 mA IO < 1 A VO = 9.5 V 10 V - 1.6 - 1.3 - 0.9 mA VO = 13.5 V 15 V - 4.2 - 3.4 - 2.4 mA VO = 0.4 V 5V 0.64 - 0.5 - 0.36 - mA VO = 0.5 V 10 V 1.6 - 1.3 - 0.9 - mA VO = 1.5 V 15 V 4.2 - 3.4 - 2.4 - mA pins 2 and 14 15 V - 0.1 - 0.1 - 1.0 A - - (Typical = 55) - - A 10 V - - (Typical = 150) - - A 15 V - - (Typical = 220) - - A active state 5V [1] All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 6 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator Table 6. Static characteristics …continued VSS = 0 V; VI = VSS or VDD unless otherwise specified. Symbol Parameter IDD supply current VDD Tamb = 40 C Tamb = 25 C Tamb = 85 C Unit Min Max Min Max Min Max 5V - 5 - 5 - 150 A 10 V - 10 - 10 - 300 A 15 V - 20 - 20 - 600 A - - - - 7.5 - - pF IO = 0 A input capacitance CI [1] Conditions Only one monostable is switching: current present during output pulse (output Q is HIGH). 10. Dynamic characteristics Table 7. Dynamic characteristics VSS = 0 V; Tamb = 25 C; for test circuit see Figure 11; unless otherwise specified. Symbol Parameter tPHL Conditions VDD HIGH to LOW nA, nB to nQ; propagation delay see Figure 6 nCD to nQ; see Figure 6 tPLH LOW to HIGH nA, nB to nQ; propagation delay see Figure 6 nCD to nQ; see Figure 6 trec trtrig tW recovery time retrigger time pulse width HEF4938B Product data sheet nCD to nA, nB; see Figure 7 nQ, nQ to nA, nB; see Figure 7 A input LOW; minimum width; see Figure 7 Extrapolation formula[1] Min Typ Max Unit 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 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 - 20 40 ns 10 V - 10 20 ns 15 V - 5 10 ns 5V 0 - - ns 10 V 0 - - ns 15 V 0 - - ns 5V 90 45 - ns 10 V 30 15 - ns 15 V 24 12 - ns nB input HIGH; minimum width; see Figure 7 5V 50 25 - ns 10 V 24 12 - ns 15 V 20 10 - ns nQ or nQ output; REXT = 100 k; CEXT = 0.1 F; see Figure 7 5V 9.3 10.0 10.6 ms 10 V 9.2 9.9 10.5 ms 15 V 9.1 9.8 10.4 ms All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 7 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator Table 7. Dynamic characteristics …continued VSS = 0 V; Tamb = 25 C; for test circuit see Figure 11; unless otherwise specified. Symbol Parameter Conditions tW nQ or nQ output variation over temperature (Tamb) range; see Figure 8 pulse width variation Extrapolation formula[1] Min VDD [1] Unit - 0.2 - % 10 V - 0.2 - % 15 V - 0.2 - % - 1.5 - % 5V - 1 - % 10 V - 1 - % 15 V - 1 - % - 15 - pF input capacitance nREXT/CEXT CI Max 5V nQ or nQ output variation over VDD voltage range 5 V to 15 V; see Figure 9 nQ or nQ output variation between same package devices; REXT = 100 k; CEXT = 2 nF to 10 F Typ The typical values of the propagation delay and transition times are calculated from the extrapolation formulas shown (CL in pF). 11. Waveforms tr VI tf 90 % VM nB input 10 % 0V tW tr tf VI 90 % nA input 10 % 0V VM tW VI VM nCD input 0V tPLH tPLH tPHL VOH nQ output VM VM VOL tPHL tPHL tPLH VOH nQ output VM VOL 001aae736 Measurement points are given in Table 8, the test circuit in Figure 11 and the test data in Table 9. Logic levels: VOL and VOH are typical output levels that occur with the output load. Fig 6. Waveforms showing rise and fall times and propagation delays Table 8. Measurement points Supply voltage Input Output VDD VM VM 5 V to 15 V 0.5VDD 0.5VDD HEF4938B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 8 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator VI nCD input VM 0V VI VM nA input 0V tW trec VI nB input VM 0V tW tretrig VOH nQ output VM VOL tW 001aaj642 Measurement points are given in Table 8, the test circuit in Figure 11 and the test data in Table 9. 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 recovery and retrigger times HEF4938B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 9 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator 001aae738 3 ΔtW (%) 001aae739 3 ΔtW (%) 2 (1) 2 (1) 1 1 (2) (2) 0 0 (3) (3) −1 −1 −2 −80 −40 0 40 80 100 Tamb (°C) a. REXT = 100 k; CEXT = 100 nF −2 −80 −40 0 40 80 100 Tamb (°C) b. REXT = 100 k; CEXT = 2 nF 0 % at VDD = 10 V and Tamb = 25 C (1) VDD = 5 V. (2) VDD = 10 V. (3) VDD = 15 V. Fig 8. Typical normalized change in output pulse width as a function of ambient temperature 001aae740 3 001aae741 103 (1) ΔtW (%) IDD (μA) 2 102 (2) 1 (1) 10 (2) 0 (3) 1 −1 −2 0 4 8 12 16 10−1 10−2 10−1 VDD (V) Tamb = 25 C; 0 % at VDD = 10 V; REXT = 100 k (1) CEXT = 2 nF. 1 10 δ (%) 102 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 HEF4938B 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. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 10 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator VDD VI VO G DUT CL RT 001aag182 Test data is given in Table 9. 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 Table 9. Test data Supply voltage Input VDD VI tr, tf CL 5 V to 15 V VSS or VDD  20 ns 50 pF HEF4938B Product data sheet Load All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 11 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator 12. Package outline DIP16: plastic dual in-line package; 16 leads (300 mil) SOT38-4 ME seating plane D A2 A A1 L c e Z w M b1 (e 1) b b2 MH 9 16 pin 1 index E 1 8 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 min. A2 max. b b1 b2 c D (1) E (1) e e1 L ME MH w Z (1) max. mm 4.2 0.51 3.2 1.73 1.30 0.53 0.38 1.25 0.85 0.36 0.23 19.50 18.55 6.48 6.20 2.54 7.62 3.60 3.05 8.25 7.80 10.0 8.3 0.254 0.76 inches 0.17 0.02 0.13 0.068 0.051 0.021 0.015 0.049 0.033 0.014 0.009 0.77 0.73 0.26 0.24 0.1 0.3 0.14 0.12 0.32 0.31 0.39 0.33 0.01 0.03 Note 1. Plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included. OUTLINE VERSION REFERENCES IEC JEDEC JEITA EUROPEAN PROJECTION ISSUE DATE 95-01-14 03-02-13 SOT38-4 Fig 12. Package outline SOT38-4 (DIP16) HEF4938B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 12 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator 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 0 detail X w M bp 2.5 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 0.039 0.016 0.028 0.020 inches 0.010 0.057 0.069 0.004 0.049 0.16 0.15 0.05 0.244 0.041 0.228 0.01 0.01 0.028 0.004 0.012 θ 8o 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 13. Package outline SOT109-1 (SO16) HEF4938B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 13 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator 13. Revision history Table 10. Revision history Document ID Release date Data sheet status Change notice Supersedes HEF4938B v.6 20111115 Product data sheet - HEF4938B v.5 Modifications: • • • Section Applications removed Table 6: IOH minimum values changed to maximum Figure 11: added “DUT = Device Under Test” HEF4938B v.5 20100106 Product data sheet - HEF4938B v.4 HEF4938B v.4 20090309 Product data sheet - HEF4938B_CNV v.3 HEF4938B_CNV v.3 19950101 Product specification - HEF4938B_CNV v.2 HEF4938B_CNV v.2 19950101 Product specification - - HEF4938B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 14 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator 14. Legal information 14.1 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. 14.2 Definitions Draft — The document is a draft version only. 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NXP Semiconductors accepts 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. 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Export might require a prior authorization from competent authorities. HEF4938B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 15 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator 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. 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. 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 14.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 15. Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com HEF4938B Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 6 — 15 November 2011 © NXP B.V. 2011. All rights reserved. 16 of 17 HEF4938B NXP Semiconductors Dual precision monostable multivibrator 16. Contents 1 2 3 4 5 5.1 5.2 6 7 8 9 10 11 12 13 14 14.1 14.2 14.3 14.4 15 16 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 12 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 B.V. 2011. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 15 November 2011 Document identifier: HEF4938B