74LV123 NEXPERIA | Alldatasheet

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basic pulse width may be extended by retriggering either of the edge triggered inputs (nA or (nB). circuit tolerant of slower input rise and fall times.

  • Wide supply voltage range from 1.0 V to 5.5 V
  • CMOS low power dissipation
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
  • Optimized for low-voltage applications: 1.0 V to 3.6 V
  • Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
  • Typical output ground bounce: < 0.8 V at VCC = 3.3 V and Tamb = 25 °C
  • Typical HIGH-level output voltage (VOH) undershoot: > 2 V at VCC = 3.3 V and Tamb = 25 °C
  • DC triggered from active HIGH or active LOW inputs
  • Retriggerable for very long pulses up to 100 % duty factor
  • Direct reset terminates output pulses
  • Schmitt-trigger action on all inputs except for the reset input
  • Complies with JEDEC standards:
  • JESD8-7 (1.65 V to 1.95 V)
  • JESD8-5 (2.3 V to 2.7 V)
  • JESD8C (2.7 V to 3.6 V)
  • JESD36 (4.5 V to 5.5 V)
  • ESD protection:
  • HBM JESD22-A114F exceeds 2000 V
  • MM JESD22-A115-A exceeds 200 V
  • Multiple package options
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C 3. Ordering information

Table 1. Ordering information

Dual retriggerable monostable multivibrator with reset PackageType number Temperature range Name Description Version 74LV123BQ -40 °C to +125 °C DHVQFN16 plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 × 3.5 × 0.85 mm SOT763-1 4. Functional diagram 001aae521 1RD 2RD S Q Q T RD 1CEXT 1REXT/CEXT 2CEXT 2REXT/CEXT Fig. 1. Logic symbol CX RCX R R 001aae522 CX RCX Fig. 2. IEC logic symbol 1QQ 2RD RD S 13 1REXT/CEXT15 1CEXT14 1QQ 001aaa610 1RD 11A 102B T Q RD S 2REXT/CEXT7 2CEXT6 2Q5 Q 2Q12 T Fig. 3. Functional diagram 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 2 / 19

Dual retriggerable monostable multivibrator with reset 001aae524 VCC nREXT/CEXT Q Q CL CL R CL CLCL VCC VCC R R RD R A B Fig. 4. Logic diagram 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 3 / 19

Table 2. Pin description

Table 3. Function table = one HIGH level output pulse; = one LOW level output pulse. [1] If the monostable multivibrator was triggered before this condition was established, the pulse will continue as programmed. Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V). [1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed. [2] For SOT109-1 (SO16) package: Ptot derates linearly with 12.4 mW/K above 110 °C. For SOT403-1 (TSSOP16) package: Ptot derates linearly with 8.5 mW/K above 91 °C. For SOT763-1 (DHVQFN16) package: Ptot derates linearly with 11.2 mW/K above 106 °C.

  1. Recommended operating conditions

Table 5. Recommended operating conditions

guaranteed from VCC = 1.2 V to VCC = 5.5 V. [2] Except for Schmitt-trigger inputs nA and nB. Table 6. Static characteristics At recommended operating conditions; voltages are referenced to GND (ground = 0 V).

Dual retriggerable monostable multivibrator with reset Symbol Parameter Conditions Min Typ[1] Max Unit Tamb = -40 °C to +125 °C VCC = 1.2 V 0.9 - - V VCC = 2.0 V 1.4 - - V VCC = 2.7 V to 3.6 V 2.0 - - V VIH HIGH-level input voltage VCC = 4.5 V to 5.5 V 0.7VCC - - V VCC = 1.2 V - - 0.3 V VCC = 2.0 V - - 0.6 V VCC = 2.7 V to 3.6 V - - 0.8 V VIL LOW-level input voltage VCC = 4.5 V to 5.5 V - - 0.3VCC V VI = VIH or VIL lO = -100 μA; VCC = 1.2 V - - - V lO = -100 μA; VCC = 2.0 V 1.8 - - V lO = -100 μA; VCC = 2.7 V 2.5 - - V lO = -100 μA; VCC = 3.0 V 2.8 - - V lO = -100 μA; VCC = 4.5 V 4.3 - - V lO = -6 mA; VCC = 3.0 V 2.2 - - V VOH HIGH-level output voltage lO = -12 mA; VCC = 4.5 V 3.5 - - V VI = VIH or VIL IO = 100 μA; VCC = 1.2 V - - - V IO = 100 μA; VCC = 2.0 V - - 0.2 V IO = 100 μA; VCC = 2.7 V - - 0.2 V IO = 100 μA; VCC = 3.0 V - - 0.2 V IO = 100 μA; VCC = 4.5 V - - 0.2 V IO = 6 mA; VCC = 3.0 V - - 0.5 V VOL LOW-level output voltage IO = 12 mA; VCC = 4.5 V - - 0.65 V II input leakage current VI = VCC or GND; VCC = 5.5 V - - 1.0 μA ICC supply current VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 160 μA ΔICC additional supply current VI = VCC - 0.6 V; VCC = 2.7 V to 3.6 V - - 850 μA [1] All typical values are measured at Tamb = 25 °C. 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 7 / 19

Table 7. Dynamic characteristics GND = 0 V; tr = tf ≤ 2.5 ns; for test circuit see Fig. 8.

Dual retriggerable monostable multivibrator with reset -40 °C to +85 °C -40 °C to +125 °CSymbol Parameter Conditions Min Typ[1] Max Min Max Unit Outputs; nQ = LOW and nQ = HIGH, see Fig. 7 CEXT = 100 nF; REXT = 10 kΩ VCC = 2.0 V - 470 - - - ns VCC = 2.7 V - 460 - - - ns VCC = 3.0 V to 3.6 V - 450 - - - ns VCC = 4.5 V to 5.5 V - 430 - - - ns CEXT = 0 pF; REXT = 5 kΩ VCC = 2.0 V - 100 - - - ns VCC = 2.7 V - 90 - - - ns VCC = 3.0 V to 3.6 V - 80 - - - ns tW pulse width VCC = 4.5 V to 5.5 V - 70 - - - ns External components see Fig. 11 [3] VCC = 1.2 V 10 - 1000 - - kΩ VCC = 2.0 V 5 - 1000 - - kΩ VCC = 2.7 V 3 - 1000 - - kΩ VCC = 3.0 V to 3.6 V 2 - 1000 - - kΩ REXT external resistance VCC = 4.5 V to 5.5 V 2 - 1000 - - kΩ see Fig. 11 [3] [4] VCC = 1.2 V - - - - - pF VCC = 2.0 V - - - - - pF VCC = 2.7 V - - - - - pF VCC = 3.0 V to 3.6 V - - - - - pF CEXT external capacitance VCC = 4.5 V to 5.5 V - - - - - pF Dynamic power dissipation CPD power dissipation capacitance VCC = 3.3 V; VI = GND to VCC [5] - 60 - - - pF [1] All typical values are measured at Tamb = 25 °C and nominal supply values (VCC = 3.3 V and 5.0 V). [2] tpd is the same as tPLH and tPHL; CEXT = 0 pF; REXT = 5 kΩ. [3] For other REXT and CEXT combinations see Fig. 11 and Section 11.1.1. [4] CEXT has no limits. [5] CPD is used to determine the dynamic power dissipation (PD in μW). PD = CPD x VCC 2 x fi x N + Σ(CL x VCC 2 × fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; Σ(CL x VCC 2 x fo) = sum of the outputs. 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 9 / 19

Measurement points are given in Table 8. Table 8. Measurement points Test data is given in Table 9. CL = Load capacitance including jig and probe capacitance. RT = Termination resistance should be equal to Zo of the pulse generator.

Table 9. Test data pin 14 (1CEXT) externally to pin 8 (GND).

  • tW = output pulse width in ns
  • REXT = external resistor in kΩ
  • CEXT = external capacitor in pF The inherent test jig and pin capacitance at pin 15 and pin 7 (nREXT/CEXT) is approximately 7 pF. 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 11 / 19

Dual retriggerable monostable multivibrator with reset 001aae529 VCC (V) 0 642 0.4 0.2 0.6 0.8 'K' factor CEXT = 10 nF; REXT = 10 kΩ to 100 kΩ Fig. 10. Typical ‘K’ factor as a function of VCC 001aae530 103 102 105 104 106 tW (ns) Cext (pF) 1 10410310 102 REXT = 100 kΩ 50 kΩ 10 kΩ 2 kΩ VCC = 3.3 V and Tamb = 25 °C Fig. 11. Typical output pulse width as a function of the external capacitance values 11.1.2. Retrigger timing The time to retrigger the monostable multivibrator depends on the values of REXT and CEXT. The output pulse width will only be extended when the time between the active going edges of the trigger pulses meets the minimum retrigger time. If CEXT > 10 pF, the next formula for the set-up time of a retrigger pulse is valid: at VCC = 5.0 V: trtrig = 30 + 0.19REXT x CEXT 0.9 + 13 x REXT 1.05 (typical) at VCC = 3.0 V: trtrig = 41 + 0.15REXT x CEXT 0.9 x 1 x REXT (typical) where:

  • trtrig = retrigger time in ns
  • CEXT = external capacitor in pF
  • REXT = external resistor in kΩ 001aae526 nB input nQ output nA input trtrig tW tW tW tW nRD = HIGH Fig. 12. Output pulse control using retrigger pulse nA 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 12 / 19

Dual retriggerable monostable multivibrator with reset 11.1.3. Reset timing 001aae527 nB input nQ output nRD input tWtW nA = LOW Fig. 13. Output pulse control using reset input nRD 11.2. Power considerations 11.2.1. Power-up When the monostable multivibrator is powered-up, it may produce an output pulse with a pulse width defined by the values of REXT and CEXT. This output pulse can be eliminated using the RC circuit on pin nRD shown in Fig. 14. 11.2.2. Power-down A large capacitor (CEXT) may cause problems when powering-down the monostable due to the energy stored in this capacitor. When a system containing this device is powered-down or a rapid decrease of VCC to zero occurs, the monostable may sustain damage, due to the capacitor discharging through the input protection diodes. To avoid this possibility, connect a damping diode DEXT (preferably a germanium or Schottky type diode) able to withstand large current surges. See Fig. 14. 001aae532 VCCRESET nRD CEXT REXT DEXT nA nB VCC nCEXTGND nREXT/CEXT nQ nQ 74LV123 13 (5) 4 (12) 15 (7)14 (6)8 1 (9) 2 (10) 3 (11) Fig. 14. Power-up and power-down circuit 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 13 / 19

Dual retriggerable monostable multivibrator with reset 12. Package outline X w M θ A A 1 A 2 b p D H E L p Q detail X E Z e c L v M A (A ) 3 A y pin 1 index UNIT A max. A 1 A 2 A 3 b p c D (1) E (1) (1) e H E L L p Q Z y w v θ REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC JEITA mm inches 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 0.7 0.6 0.7 0.3 8 o o 0.25 0.1 DIMENSIONS (inch dimensions are derived from the original mm dimensions) Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. 1.0 0.4 SOT109-1 99-12-27 03-02-19 076E07 MS-012 0.069 0.010 0.004 0.057 0.049 0.01 0.019 0.014 0.0100 0.0075 0.39 0.38 0.16 0.15 0.05 1.05 0.041 0.244 0.228 0.028 0.020 0.028 0.012 0.01 0.25 0.01 0.004 0.039 0.016 0 2.5 5 mm scale SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 Fig. 15. Package outline SOT109-1 (SO16) 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 14 / 19

Dual retriggerable monostable multivibrator with reset UNIT A 1 A 2 A 3 b p c D (1) E (2) (1) e H E L L p Q Z y w v θ REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC JEITA mm 0.15 0.05 0.95 0.80 0.30 0.19 0.2 0.1 5.1 4.9 4.5 4.3 0.65 6.6 6.2 0.4 0.3 0.40 0.06 o o 0.13 0.1 0.2 1 DIMENSIONS (mm are the original dimensions) Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. 0.75 0.50 SOT403-1 MO-153 99-12-27 03-02-18 w M b p D Z e 0.25 1 8 16 9 θ A A 1 A 2 L p Q detail X L (A ) 3 H E E c v M A X A y 0 2.5 5 mm scale TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 A max. 1.1 pin 1 index Fig. 16. Package outline SOT403-1 (TSSOP16) 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 15 / 19

Dual retriggerable monostable multivibrator with reset terminal 1 index area 0.5 1 A1 Eh b UNIT y e 0.2 c REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC JEITA mm 3.6 3.4 Dh 2.15 1.85 2.6 2.4 1.15 0.85 2.5 0.30 0.18 0.05 0.00 0.05 0.1 DIMENSIONS (mm are the original dimensions) 0.5 0.3 L 0.1 v 0.05 w 0 2.5 5 mm scale SOT763-1 DHVQFN16: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 16 terminals; body 2.5 x 3.5 x 0.85 mm A(1) max. A c detail X y y1 C e L Eh Dh e b 2 7 15 10 8 1 X D E C B A terminal 1 index area A C C B v M w M E (1) Note 1. Plastic or metal protrusions of 0.075 mm maximum per side are not included. D (1) 02-10-17 03-01-27 Fig. 17. Package outline SOT763-1 (DHVQFN16) 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 16 / 19

Table 10. Abbreviations Table 11. Revision history

  • Legal texts have been adapted to the new company name where appropriate.
  • Type number 74LV123DB (SOT338-1/SSOP16) removed.
  • Section 1 and Section 2 updated.
  • Section 7: Derating values for Ptot total power dissipation have been updated. 74LV123 v.8 20160304 Product data sheet - 74LV123 v.7 Modifications: • Type numbers 74LV123N (SOT38-4) removed. 74LV123 v.7 20111212 Product data sheet - 74LV123 v.6 Modifications: • Legal pages updated. 74LV123 v.6 20110826 Product data sheet - 74LV123 v.5 74LV123 v.5 20071108 Product data sheet - 74LV123 v.4 74LV123 v.4 20070919 Product specification - 74LV123 v.3 74LV123 v.3 20030313 Product specification - 74LV123 v.2 74LV123 v.2 19980420 Product specification - 74LV123 v.1 74LV123 v.1 19970204 Product specification - - 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 17 / 19

Dual retriggerable monostable multivibrator with reset 15. Legal information 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 https://www.nexperia.com. Definitions Draft — The document is a draft version only. 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Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 74LV123 All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 9 — 13 September 2021 18 / 19