TC74VHC123AF_07 datasheet(3/15 Pages) TOSHIBA

Electronic Components Datasheet Search

TC74VHC123AF Datasheet(PDF) 3 Page - Toshiba Semiconductor

Part #	TC74VHC123AF

Description	Dual Monostable Multivibrator

Download	15 Pages

Scroll/Zoom	100%

Manufacturer	TOSHIBA [Toshiba Semiconductor]

Direct Link	http://www.semicon.toshiba.co.jp/eng

Logo

3 / 15 page

TC74VHC123,221AF/AFN/AFT/AFK

2007-10-19

Block Diagram (Note 1) (Note 2)

Note 1: CX, RX, DX are external

Capacitor, resistor, and diode, respectively.

Note 2: External clamping diode, DX;

The external capacitor is charged to VCC level in the wait state, i.e. when no trigger is applied.

If the supply voltage is turned off, CX is discharges mainly through the internal (parasitic) diode. If CX is

sufficiently large and VCC drops rapidly, there will be some possibility of damaging the IC through in rush

current or latch-up. If the capacitance of the supply voltage filter is large enough and VCC drops slowly, the

in rush current is automatically limited and damage to the IC is avoided.

The maximum value of forward current through the parasitic diode is

±20 mA.

In the case of a large CX, the limit of fall time of the supply voltage is determined as follows:

tf ≥ (VCC − 0.7) CX/20 mA

(tf is the time between the supply voltage turn off and the supply voltage reaching 0.4 VCC.)

In the even a system does not satisfy the above condition, an external clamping diode (DX) is needed to

protect the IC from rush current.

VCC

CX RX/CX

CLR

VCC

CX RX/CX

CLR

Manufacturer	Part #	Datasheet	Description
Toshiba Semiconductor	TC74VHC123AFK	287Kb / 14P	Dual Monostable Multivibrator
	TC74VHC123AFN	486Kb / 12P	DUAL MONOSTABLE MULTIVIBRATOR. RETRIGGERBLE/NON-RETRIGGERBLE
	TC74VHC123AFT	486Kb / 12P	DUAL MONOSTABLE MULTIVIBRATOR. RETRIGGERBLE/NON-RETRIGGERBLE
	TC74VHC123AFT	287Kb / 14P	Dual Monostable Multivibrator
	TC74VHC123AF	287Kb / 14P	Dual Monostable Multivibrator

Manufacturer	Part #	Datasheet	Description
National Semiconductor ...	CD4528BM	171Kb / 8P	Dual Monostable Multivibrator
Integral Corp.	IN74HC221A	283Kb / 7P	DUAL MONOSTABLE MULTIVIBRATOR
NXP Semiconductors	HEF4528B	180Kb / 17P	Dual monostable multivibrator Rev. 7-22 November 2011
Nexperia B.V. All right...	HEF4528B-Q100	203Kb / 15P	Dual monostable multivibrator
Nexperia B.V. All right...	HEF4528B	237Kb / 13P	Dual monostable multivibrator Rev. 11 - 4 March 2022
NXP Semiconductors	HEF4528B	440Kb / 16P	Dual monostable multivibrator Rev. 06-27 November 2009
Toshiba Semiconductor	TC74HC221AP	478Kb / 13P	Dual Monostable Multivibrator
STMicroelectronics	HCF4098B	233Kb / 10P	DUAL MONOSTABLE MULTIVIBRATOR
IK Semicon Co., Ltd	IN74HC221A	398Kb / 7P	Dual Monostable Multivibrator
Toshiba Semiconductor	TC74VHC123AF	287Kb / 14P	Dual Monostable Multivibrator

Privacy Policy
ALLDATASHEET.COM

ALLDATASHEET.COM

Does ALLDATASHEET help your business so far? [ DONATE ]
About Alldatasheet \| Advertisement \| Datasheet Upload \| Contact us \| Privacy Policy \| Link Exchange \| Manufacturer List All Rights Reserved©Alldatasheet.com
Mirror Sites English : Alldatasheet.com \| English : Alldatasheet.net \| Chinese : Alldatasheetcn.com \| German : Alldatasheetde.com \| Japanese : Alldatasheet.jp Russian : Alldatasheetru.com \| Korean : Alldatasheet.co.kr \| Spanish : Alldatasheet.es \| French : Alldatasheet.fr \| Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com \| Polish : Alldatasheet.pl \| Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in \| Mexican : Alldatasheet.com.mx \| British : Alldatasheet.co.uk \| New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com \| icmetro.com

Does ALLDATASHEET help your business so far? [ DONATE ]

Family Site : ic2ic.com | icmetro.com