HEF4047BT

Monostable/astable multivibrator

The HEF4047B is a retriggerable astable multivibrator that can be configured as either a positive-edge or negative-edge triggered monostable multivibrator. The output pulse width is programmed by selection of external components (R_t and C_t). Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V_CC.

Alternatives

HEF4047BT-Q100

Automotive qualified

Monostable/astable multivibrator

Buy from Nexperia

SKU	Stock*	MOQ	Price per unit**	Quantity

Buy from distributors

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

* Stock values are subject to change
** Displayed price per unit is based on small quantity orders
*** Authorized resellers for overstock, mature, and discontinued products which are warranted for reliability by the reseller, no longer by Nexperia

Features and benefits

General

Monostable (one-shot) or astable (free-running) operation
True and complemented buffered outputs
Only one external resistor and capacitor required

Monostable multivibrator

Positive- or negative-edge triggering
Output pulse width independent of trigger pulse duration
Retriggerable option for pulse-width expansion
Long pulse width possible using small RC components with external counter provision
Fast recovery time independent of pulse width
Pulse-width accuracy maintained at duty cycles approaching 100%

Astable multivibrator

Free-running or gatable operating modes
50% duty cycle
Oscillator output available

Applications

Parametrics

Type number	Product status	V_CC (V)	Logic switching levels	Output drive capability (mA)	t_pd (ns)	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	Ψ_th(j-top) (K/W)	R_th(j-c) (K/W)	Package name
HEF4047BT	Production	4.5 - 15.5	CMOS	± 2.4	50	medium	-40~85	69	1.0	26	SO14

Package

Type number	Orderable part number, (Ordering code (12NC))	Status	Marking	Package	Package information	Reflow-/Wave soldering	Packing
HEF4047BT	HEF4047BT,653 ( 9333 729 10653 )	Active	HEF4047BT	SO14 (SOT108-1)	SOT108-1	SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1 CECC

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type number	Orderable part number, (Ordering code (12NC))	Status	Marking	Package	Package information	Reflow-/Wave soldering	Packing
HEF4047BT	HEF4047BT,652 ( 9333 729 10652 )	Discontinued / End-of-life	HEF4047BT	SO14 (SOT108-1)	SOT108-1	SO-SOJ-REFLOW SO-SOJ-WAVE	Bulk Pack, CECC

Discontinuation information

Type number	Orderable part number	Ordering code	Last time buy date	Last time delivery date	Replacement product	Status	Comments
HEF4047BT	HEF4047BT,652	933372910652

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	RoHS / RHF	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
HEF4047BT	HEF4047BT,653	HEF4047BT		65.0	1.2	8.33E8	1	1

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type number	Orderable part number	Chemical content	RoHS / RHF	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
HEF4047BT	HEF4047BT,652	HEF4047BT		65.0	1.2	8.33E8	1	1

Quality and reliability disclaimer

Series

HEF4047B - Monostable/astable multivibrator

Documentation (5)

File name	Title	Type	Date
HEF4047B	Monostable/astable multivibrator	Data sheet	2017-03-23
AN11051	Pin FMEA HEF4000 family	Application note	2019-01-09
SO-SOJ-REFLOW	Footprint for reflow soldering	Reflow soldering	2009-10-08
SO-SOJ-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
WAVE_BG-BD-1	Wave soldering profile	Wave soldering	2021-09-08

Support

If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.

Ordering, pricing & availability

Type number	Orderable part number	Ordering code (12NC)	Packing	Buy online
HEF4047BT	HEF4047BT,653	933372910653	Reel 13" Q1/T1 CECC	Order product

Sample

As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.