74AHCT123A NEXPERIA | Alldatasheet
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Datasheet sections
basic output pulse width is programmed by selection of external components (REXT and CEXT). these devices as translators in mixed voltage environments.
- Wide supply voltage range from 2.0 V to 5.5 V
- DC triggered from active HIGH or active LOW inputs
- Retriggerable for very long pulses up to 100 % duty factor
- Direct reset terminates output pulse
- Overvoltage tolerant inputs to 5.5 V
- All inputs have a Schmitt-trigger action
- High noise immunity
- Input levels:
- For 74AHC123A: CMOS level
- For 74AHCT123A: TTL level
- ESD protection:
- HBM JESD22-A114E exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
- CDM JESD22-C101C exceeds 1000 V
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
- Multiple package options
- Specified from -40 °C to +85 °C and from -40 °C to +125 °C 3. Ordering information
Table 1. Ordering information
Nexperia 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset 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 aaa-000650 1RD 11A 102B T Q RD S 2REXT/CEXT7 2CEXT6 2Q5 Q 2Q12 T Fig. 3. Functional diagram 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 2 / 19
Nexperia 74AHC123A; 74AHCT123A 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 For minimum noise generation it is recommended to ground pins 6 (2CEXT) and 14 (1CEXT) externally to pin 8 (GND). Fig. 4. Functional diagram 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 3 / 19
Table 2. Pin description
Table 3. Function table = 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.
- Recommended operating conditions
Table 5. Recommended operating conditions Voltages are referenced to GND (ground = 0 V). Table 6. Static characteristics Voltages are referenced to GND (ground = 0 V).
Nexperia 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset 25 °C -40 °C to +85 °C -40 °C to +125 °C Symbol Parameter Conditions Min Typ Max Min Max Min Max Unit VI = 5.5 V or GND; VCC = 0 V to 5.5 V nREXT/CEXT [1] - - ±0.25 - ±2.5 - ±10.0 μA II input leakage current pins nA, nB, nRD - - ±0.1 - ±1.0 - ±2.0 μA VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 4.0 - 40 - 80 μA active state (per circuit); VI = VCC or GND [1] VCC = 3.0 V - 160 250 - 280 - 280 μA VCC = 4.5 V - 380 500 - 650 - 650 μA ICC supply current VCC = 5.5 V - 560 750 - 975 - 975 μA CI input capacitance - 5.0 10 - 10 - 10 pF CO output capacitance - 4.0 - - - - - pF 74AHCT123A VIH HIGH-level input voltage VIL LOW-level input voltage VI = VIH or VIL; VCC = 4.5 V VOH HIGH-level output voltage VI = VIH or VIL; VCC = 4.5 V IO = 50 μA - 0 0.1 - 0.1 - 0.1 V VOL LOW-level output voltage IO = 8.0 mA - - 0.36 - 0.44 - 0.55 V nREXT/CEXT; VI = 5.5 V or GND; VCC = 0 V to 5.5 V [1] - - ±0.25 - ±2.5 - ±10.0 μAII input leakage current pins nA, nB, nRD; VI = VCC or GND; VCC = 5.5 V VI = VCC or GND; IO = 0 A; VCC = 5.5 V - - 4.0 - 40 - 80 μA active state (per circuit); VI = VCC or GND [1] VCC = 4.5 V - 380 500 - 650 - 650 μA ICC supply current VCC = 5.5 V - 560 750 - 975 - 975 μA CI input capacitance - 3 10 - 10 - 10 pF CO output capacitance - 4.0 - - - - - pF [1] Voltage on nREXT/CEXT = 0.5 × VCC and pin nREXT/CEXT in OFF-state during test. 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 7 / 19
Table 7. Dynamic characteristics GND = 0 V; For test circuit see Fig. 12.
Nexperia 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset 25 °C -40 °C to +85 °C -40 °C to +125 °C Symbol Parameter Conditions Min Typ[1] Max Min Max Min Max Unit nA to nB; CEXT = 100 pF; REXT = 1 kΩ; CL = 50 pF; see Fig. 8 and Fig. 10 VCC = 3.0 V to 3.6 V - 60 - - - - - ns VCC = 4.5 V to 5.5 V - 39 - - - - - ns nA to nB; CEXT = 0.01 μF; REXT = 1 kΩ; CL = 50 pF; see Fig. 8 and Fig. 10 trtrig retrigger time CPD power dissipation capacitance CL = 50 pF; fi = 1 MHz; VI = GND to VCC 74AHCT123A nA and nB to nQ and nQ; see Fig. 7 [2] nRD to nQ and nQ; see Fig. 7 [2] nRD to nQ and nQ (reset); see Fig. 7 [2] tpd propagation delay inputs; nA = LOW; CL = 50 pF; see Fig. 7 inputs; nB = HIGH; CL = 50 pF; see Fig. 7 inputs; nRD = LOW; CL = 50 pF; see Fig. 7 outputs; nQ = LOW and nQ = HIGH; CL = 50 pF; CEXT = 28 pF; REXT = 2 kΩ; see Fig. 7, Fig. 8, Fig. 9 and Fig. 10 [3] VCC = 4.5 V to 5.5 V - 100 200 - 240 - 240 ns CEXT = 0.01 μF; REXT = 10 kΩ VCC = 4.5 V to 5.5 V 90 100 110 90 110 85 115 μs CEXT = 0.1 μF; REXT = 10 kΩ tW pulse width 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 9 / 19
Nexperia 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset 25 °C -40 °C to +85 °C -40 °C to +125 °C Symbol Parameter Conditions Min Typ[1] Max Min Max Min Max Unit nA to nB; CEXT = 100 pF; REXT = 1 kΩ; CL = 50 pF; see Fig. 8 and Fig. 10 VCC = 4.5 V to 5.5 V - 60 - - - - - ns nA to nB; CEXT = 0.01 μF; REXT = 1 kΩ; CL = 50 pF; see Fig. 8 and Fig. 10 trtrig retrigger time CPD power dissipation capacitance CL = 50 pF; fi = 1 MHz; VI = GND to VCC External components VCC = 2.0 V 5 - - - - - - kΩREXT external resistance VCC > 3.0 V 1 - - - - - - kΩ VCC = 2.0 V [5] - - - - - - - pFCEXT external capacitance VCC > 3.0 V [5] - - - - - - - pF [1] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V). [2] tpd is the same as tPLH and tPHL; CEXT = 0 pF; REXT = 5 kΩ. [3] For CEXT ≥ 10 nF the typical value of the pulse width tW (μs) = CEXT (nF) × REXT (kΩ). [4] CPD is used to determine the dynamic power dissipation PD (μW). PD = CPD × VCC 2 × fi + Σ(CL × 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. [5] CEXT has no limits. 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 10 / 19
Measurement points are given in Table 8. Table 8. Measurement points
Nexperia 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset 001aae527 nB input nQ output nRD input tWtW nA = LOW Fig. 9. Output pulse control using reset input nRD trt tW tW tW + trt nA input nB input nRD input nREXT/CEXT nQ output nQ output 001aah086 Fig. 10. Input and output timing VCC REXT to nCEXT (pin 14 or 6) to nREXT/CEXT (pin 15 or 7) CEXT mna519 Fig. 11. Timing component connections 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 12 / 19
Test data is given in Table 9. Table 9. Test data
Nexperia 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset 11. 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. 13. Package outline SOT109-1 (SO16) 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 14 / 19
Nexperia 74AHC123A; 74AHCT123A 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. 14. Package outline SOT403-1 (TSSOP16) 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 15 / 19
Nexperia 74AHC123A; 74AHCT123A 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. 15. Package outline SOT763-1 (DHVQFN16) 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 16 / 19
Table 10. Abbreviations Table 11. Revision history
- Legal texts have been adapted to the new company name where appropriate.
- Section 1 and Section 2 updated.
- Table 4: Derating values for Ptot total power dissipation updated. 74AHC_AHCT123A v.4 20111108 Product data sheet - 74AHC_AHCT123A v.3 Modifications: • Legal pages updated. 74AHC_AHCT123A v.3 20110908 Product data sheet - 74AHC_AHCT123A v.2 74AHC_AHCT123A v.2 20080118 Product data sheet - 74AHC_AHCT123A v.1 74AHC_AHCT123A v.1 20000315 Product specification - - 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 17 / 19
Nexperia 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset 14. 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. 74AHC_AHCT123A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2020. All rights reserved Product data sheet Rev. 5 — 17 June 2020 18 / 19