HEF4027BT

Dual JK flip-flop

The HEF4027B is a edge-triggered dual JK flip-flop which features independent set-direct (SD), clear-direct (CD), clock (CP) inputs and outputs (Q, Q). Data is accepted when CP is LOW, and transferred to the output on the positive-going edge of the clock. The active HIGH asynchronous clear-direct (CD) and set-direct (SD) inputs are independent and override the J, K, and CP inputs. The outputs are buffered for best system performance. Schmitt trigger action makes the clock input highly tolerant of slower rise and fall times.

It operates over a recommended V_DD power supply range of 3 V to 15 V referenced to V_SS (usually ground). Unused inputs must be connected to V_DD, V_SS, or another input.

Alternatives

HEF4027BT-Q100

Automotive qualified

Dual JK flip-flop

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

Fully static operation
5 V, 10 V, and 15 V parametric ratings
Standardized symmetrical output characteristics
Specified from -40 ºC to +85 ºC
Complies with JEDEC standard JESD 13-B

Applications

Registers
Counters
Control circuits

Parametrics

Type number	Product status	V_CC (V)	Logic switching levels	Output drive capability (mA)	t_pd (ns)	f_max (MHz)	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
HEF4027BT	Production	4.5 - 15.5	CMOS	± 2.4	30	30	low	-40~85	82	5.4	41.5	SO16

Package

Type number	Orderable part number, (Ordering code (12NC))	Status	Marking	Package	Package information	Reflow-/Wave soldering	Packing
HEF4027BT	HEF4027BT,653 ( 9333 727 90653 )	Active	HEF4027BT	SO16 (SOT109-1)	SOT109-1	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
HEF4027BT	HEF4027BT,652 ( 9333 727 90652 )	Discontinued / End-of-life	HEF4027BT	SO16 (SOT109-1)	SOT109-1	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
HEF4027BT	HEF4027BT,652	933372790652

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	RoHS / RHF	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
HEF4027BT	HEF4027BT,653	HEF4027BT		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
HEF4027BT	HEF4027BT,652	HEF4027BT		65.0	1.2	8.33E8	1	1

Quality and reliability disclaimer

Series

HEF4027B - Dual JK flip-flop

Documentation (5)

File name	Title	Type	Date
HEF4027B	Dual JK flip-flop	Data sheet	2017-03-17
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

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Ordering, pricing & availability

Type number	Orderable part number	Ordering code (12NC)	Packing	Buy online
HEF4027BT	HEF4027BT,653	933372790653	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.