74AHC123ABQ | DigiCamel IC Datasheet

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Technical content

General description The 74AHC123A; 74AHCT123A are high-speed Si-gate CMOS devices and are pin compatible with Low power Schottky TTL (LSTTL). They are speciﬁed in compliance with JEDEC standard no. 7A. The 74AHC123A; 74AHCT123A are dual retriggerable monostable multivibrators with output pulse width control by three methods. The basic pulse time is programmed by selection of an external resistor (R EXT ) and capacitor (CEXT ). The external resistor and capacitor are normally connected as shown inFigure11. Once triggered, the basic output pulse width may be extended by retriggering the gated active LOW-going edge input (nA) or the active HIGH-going edge input (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW) can be made as long as desired. Alternatively an output delay can be terminated at any time by a LOW-going edge on input n RD, which also inhibits the triggering. An internal connection from nRD to the input gate makes it possible to trigger the circuit by a positive-going signal at input nRD as shown inTable3.Figure8 and Figure9 illustrate pulse control by retriggering and early reset. The basic output pulse width is essentially determined by the value of the external timing components R EXT and CEXT . When C EXT ≥ 10 nF , the typical output pulse width is deﬁned as: tW =R EXT × C EXT where tW = pulse width in ns; REXT = external resistor in kΩ ; CEXT = external capacitor in pF . Schmitt-trigger action at all inputs makes the circuit highly tolerant to slower input rise and fall times. The 74AHC123A; 74AHCT123A is identical to the 74AHC423; 74AHCT423 but can be triggered via the reset input. 2. Features ■ All inputs have a Schmitt-trigger action ■ Inputs accept voltages higher than VCC ■ DC triggered from active HIGH or active LOW inputs ■ Retriggerable for very long pulses up to 100 % duty factor ■ Direct reset terminates output pulse ■ For 74AHC123A only: operates with CMOS input levels ■ For 74AHCT123A only: operates with TTL input levels ■ ESD protection: ◆ HBM JESD22-A114E exceeds 2000 V ◆ MM JESD22-A115-A exceeds 200 V ◆ CDM JESD22-C101C exceeds 1000 V ■ Multiple package options ■ Speciﬁed from−40 °C to +85°C and from−40 °C to +125°C 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset Rev. 02 — 18 January 2008 Product data sheet

74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 18 January 2008 3 of 21 NXP Semiconductors 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset Fig 3. Functional diagram 1QQ 2RD R D S 13 1REXT/CEXT15 1CEXT14 1QQ 001aaa610 1RD 11A 102B T Q R D S 2REXT/CEXT7 2CEXT6 2Q5 Q 2Q12 T

74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 18 January 2008 4 of 21 NXP Semiconductors 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset For minimum noise generation it is recommended to ground pins 6 (2CEXT) and 14 (1CEXT) externally to pin 8 (GND). Fig 4. Functional diagram 001aae524 VCC nREXT/CEXT Q Q CL CL R CL CLCL VCC VCC RR RD R A B

5.1 Pinning

5.2 Pin description

Table 2. Pin description

74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. = one LOW level output pulse. [2] If the monostable multivibrator was triggered before this condition was established, the pulse will continue as programmed. [1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed. totderates linearly with 8 mW/K above 70°C. [3] Ptot derates linearly with 5.5 mW/K above 60°C. [4] Ptot derates linearly with 4.5 mW/K above 60°C. Table 3. Function table[1] Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).

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).

74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. [1] Voltage on nREXT/CEXT = 0.5 × VCC and pin REXT/CEXT in OFF-state during test. Table 6. Static characteristics …continued Voltages are referenced to GND (ground = 0 V).

74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. [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] C PD is used to determine the dynamic power dissipation PD (µW). GND = 0 V; For test circuit seeFigure12.

74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 18 January 2008 14 of 21 NXP Semiconductors 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset nA = LOW Fig 9. Output pulse control using reset input nRD 001aae527 nB input nQ output nRD input tWtW Fig 10. Input and output timing trt tW tW tW + trt nA input nB input nRD input nREXT/CEXT nQ output nQ output 001aah086

74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 18 January 2008 16 of 21 NXP Semiconductors 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset 12. Package outline Fig 13. Package outline SOT109-1 (SO16) X w M q AA 1 A 2 bp D H E Lp 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 bp cD (1) E (1) (1)eH E LL p QZ ywv q REFERENCESOUTLINE 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 0.0410.244 0.228 0.028 0.020 0.028 0.0120.01 0.25 0.01 0.0040.039 0.016 0 2.5 5 mm scale SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1

74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 18 January 2008 17 of 21 NXP Semiconductors 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset Fig 14. Package outline SOT403-1 (TSSOP16) UNIT A 1 A 2 A 3 bp cD (1) E (2) (1)eH E LL p QZ ywv q REFERENCESOUTLINE 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 o0.13 0.10.21 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 bp D Z e 0.25 16 9 q AA 1 A 2 Lp Q detail X L (A )3 H E E c v M A XA 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

74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 18 January 2008 18 of 21 NXP Semiconductors 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset Fig 15. Package outline SOT763-1 (DHVQFN16) terminal 1 index area 0.51 A 1 EhbUNIT ye 0.2 c REFERENCESOUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC JEITA mm 3.6 3.4 D h 2.15 1.85 2.6 2.4 1.15 0.85 2.50.30 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 yy1 Ce L Eh D h e b 15 10 X D E C B A terminal 1 index area AC C Bv 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

The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors.
Legal texts have been adapted to the new company name where appropriate.
Section3: DHVQFN16 package added.
Section7: derating values added for DHVQFN16 package.
Section12: outline drawing added for DHVQFN16 package. 74AHC_AHCT123A_1 20000315 Product speciﬁcation - -

74AHC_AHCT123A_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 18 January 2008 20 of 21 NXP Semiconductors 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset 15. Legal information

15.1 Data sheet status

[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. Short data sheet —A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales ofﬁce. In case of any inconsistency or conﬂict with the short data sheet, the full data sheet shall prevail.

15.3 Disclaimers

General — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors 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. Right to make changes —NXP Semiconductors 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 —NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support 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 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. Limiting values —Stress above one or more limiting values (as deﬁned in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of 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 , including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conﬂict between information in this document and such terms and conditions, the latter will prevail. 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.

15.4 Trademarks

Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 16. Contact information For additional information, please visit:http://www.nxp.com For sales ofﬁce addresses, send an email to:salesaddresses@nxp.com 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.

NXP Semiconductors 74AHC123A; 74AHCT123A Dual retriggerable monostable multivibrator with reset © NXP B.V. 2008. 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: 18 January 2008 Document identifier: 74AHC_AHCT123A_2 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. 17. Contents

Product Information

74AHC123ABQ specifications and overview.

Summary

Dual retriggerable monostable multivibrator with reset Rev. 02-18 January 2008

Description

Dual retriggerable monostable multivibrator with reset Rev. 02-18 January 2008

Source title 74AHC123ABQ Datasheet(PDF) - NXP Semiconductors

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