74HC123 datasheet(4/24 Pages) NXP

No de pièce	74HC123

Description	Dual retriggerable monostable multivibrator with reset

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Fabricant	NXP [NXP Semiconductors]

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74HC_HCT123_5

Product data sheet

Rev. 05 — 13 July 2009

4 of 24

NXP Semiconductors

74HC123; 74HCT123

Dual retriggerable monostable multivibrator with reset

5.

Pinning information

5.1 Pinning

5.2 Pin description

(1) The die substrate is attached to this pad using

conductive die attach material. It can not be used as

supply pin or input.

Fig 5.

Pin conﬁguration for DIP16, SO16, SSOP16

and TSSOP16

Fig 6.

Pin conﬁguration for DHVQFN16

74HC123

74HCT123

1A

VCC

1B

1REXT/CEXT

1RD

1CEXT

1Q

2Q

2CEXT

2RD

2REXT/CEXT

2B

GND

2A

001aaa698

1

2

3

4

5

6

7

8

10

9

12

11

14

13

16

15

001aaf046

74HC123

2REXT/CEXT

2B

2CEXT

2RD

2Q

1Q

1RD

1CEXT

1B

1REXT/CEXT

Transparent top view

7

10

6

11

5

12

4

13

3

14

2

15

terminal 1

index area

VCC(1)

Table 2.

Pin description

Symbol

Description

1A

1

negative-edge triggered input 1

1B

2

positive-edge triggered input 1

1RD

3

direct reset LOW and positive-edge triggered input 1

1Q

4

active LOW output 1

2Q

5

active HIGH output 2

2CEXT

6

external capacitor connection 2

2REXT/CEXT

7

external resistor and capacitor connection 2

GND

8

ground (0 V)

2A

9

negative-edge triggered input 2

2B

10

positive-edge triggered input 2

2RD

11

direct reset LOW and positive-edge triggered input 2

2Q

12

active LOW output 2

1Q

13

active HIGH output 1

1CEXT

14

external capacitor connection 1

1REXT/CEXT

15

external resistor and capacitor connection 1

VCC

16

supply voltage

Numéro de pièce similaire - 74HC123

Fabricant	No de pièce	Fiches technique	Description
NXP Semiconductors	74HC123	124Kb / 17P	Dual retriggerable monostable multivibrator with reset 1998 Jul 08
NXP Semiconductors	74HC123	295Kb / 25P	Dual retriggerable monostable multivibrator with reset Rev. 8-16 December 2011
Silicon Supplies	74HC123	610Kb / 7P	High Speed CMOS Logic
Nexperia B.V. All right...	74HC123	322Kb / 20P	Dual retriggerable monostable multivibrator with reset Rev. 12 - 11 August 2021
Nexperia B.V. All right...	74HC123-Q100	846Kb / 23P	Dual retriggerable monostable multivibrator with reset

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Description similaire - 74HC123

Fabricant	No de pièce	Fiches technique	Description
NXP Semiconductors	74LV123	134Kb / 23P	Dual retriggerable monostable multivibrator with reset Rev. 05-8 November 2007
	74AHC123A	111Kb / 24P	Dual retriggerable monostable multivibrator with reset 2000 Mar 15
	74HC_HCT123	267Kb / 25P	Dual retriggerable monostable multivibrator with reset Rev. 9-19 January 2015
Nexperia B.V. All right...	74LV123	310Kb / 19P	Dual retriggerable monostable multivibrator with reset Rev. 9 - 13 September 2021
Nexperia B.V. All right...	74AHC123A-Q100	303Kb / 20P	Dual retriggerable monostable multivibrator with reset Rev. 2 - 17 June 2020
NXP Semiconductors	74AHC123A-Q100	326Kb / 22P	Dual retriggerable monostable multivibrator with reset Rev. 1-23 May 2013
	74LV423	156Kb / 16P	Dual retriggerable monostable multivibrator with reset 1997 Feb 04
	74AHC_AHCT123A	315Kb / 22P	Dual retriggerable monostable multivibrator with reset Rev. 4-8 November 2011
Nexperia B.V. All right...	74AHCT123A	302Kb / 19P	Dual retriggerable monostable multivibrator with reset Rev. 5 - 17 June 2020
NXP Semiconductors	74LV123	145Kb / 16P	Dual retriggerable monostable multivibrator with reset 1998 Apr 20
NXP Semiconductors	74HC423D.653	295Kb / 24P	Dual retriggerable monostable multivibrator with reset Rev. 6-19 December 2011

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