74HC73

Dual JK flip-flop with reset; negative-edge trigger

The 74HC73 is a dual negative edge triggered JK flip-flop with individual J, K, clock (nCP) and reset (nR) inputs and complementary nQ and nQ outputs. The J and K inputs must be stable one set-up time prior to the HIGH-to-LOW clock transition for predictable operation. (nR) is asynchronous, when LOW it overrides the clock and data inputs, forcing the nQ output LOW and the nQ output HIGH. Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V_CC.

Features and benefits

CMOS low-power dissipation
Wide supply voltage range from 2.0 to 6.0 V
High noise immunity
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Complies with JEDEC standards
- JESD8C (2.7 V to 3.6 V)
- JESD7A (2.0 V to 6.0 V)
ESD protection:
- HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Specified from -40 °C to +80 °C and from -40 °C to +125 °C

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
74HC73D	Production	2.0 - 6.0	CMOS	± 5.2	16	77	low	-40~125	74	1.0	31	SO14
74HC73PW	Production	2.0 - 6.0	CMOS	± 5.2	16	77	low	-40~125	118	1.0	41.3	TSSOP14

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74HC73D	SO14 (SOT108-1)	SOT108-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT108-1_653	Active	74HC73D	74HC73D,653 ( 9337 144 30653 )
74HC73PW	TSSOP14 (SOT402-1)	SOT402-1	SSOP-TSSOP-VSO-WAVE	SOT402-1_118	Active	HC73	74HC73PW,118 ( 9352 420 70118 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74HC73D	933714430652	2021-12-31	2022-06-30	74HC73D
74HC73PW	935242070112	2021-12-31	2022-06-30	74HC73PW

Environmental information

Type number	Orderable part number	Chemical content	RoHS	RHF-indicator	Leadfree conversion date
74HC73D	74HC73D,653	74HC73D			week 30, 2004
74HC73PW	74HC73PW,118	74HC73PW			week 10, 2005

Quality and reliability disclaimer

Documentation (10)

File name	Title	Type	Date
74HC73	Dual JK flip-flop with reset; negative-edge trigger	Data sheet	2024-03-26
AN11044	Pin FMEA 74HC/74HCT family	Application note	2019-01-09
Nexperia_Selection_guide_2023	Nexperia Selection Guide 2023	Selection guide	2023-05-10
HCT_USER_GUIDE	HC/T User Guide	User manual	1997-10-31
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SOT402-1	plastic, thin shrink small outline package; 14 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.2 mm body	Package information	2023-11-07
SO-SOJ-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SO-SOJ-REFLOW	Footprint for reflow soldering	Reflow soldering	2009-10-08
WAVE_BG-BD-1	Wave soldering profile	Wave soldering	2021-09-08
SOT108-1	plastic, small outline package; 14 leads; 1.27 mm pitch; 8.65 mm x 3.9 mm x 1.75 mm body	Package information	2023-11-07

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

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.