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 VCC.

74HC73: Product Block Diagram

sot108-1_3d

Data Sheets (1)

Name/Description	Modified Date
Dual JK flip-flop with reset; negative-edge trigger (REV 5.0) PDF (174.0 kB) 74HC73 [English]	02 Dec 2015

Application Notes (2)

Name/Description	Modified Date
Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English]	13 Mar 2013
Pin FMEA 74HC/74HCT family (REV 1.0) PDF (51.0 kB) AN11044 [English]	16 Mar 2011

Users Guides (1)

Name/Description	Modified Date
HC/T User Guide (REV 1.0) PDF (508.0 kB) HCT_USER_GUIDE [English]	01 Nov 1997

Package Information (3)

Name/Description	Modified Date
plastic small outline package; 14 leads; body width 3.9 mm (REV 1.0) PDF (166.0 kB) SOT108-1 [English]	08 Feb 2016
plastic shrink small outline package; 14 leads; body width 5.3 mm (REV 1.0) PDF (295.0 kB) SOT337-1 [English]	08 Feb 2016
plastic thin shrink small outline package; 14 leads; body width 4.4 mm (REV 1.0) PDF (285.0 kB) SOT402-1 [English]	08 Feb 2016

Packing (2)

Name/Description	Modified Date
TSSOP14; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (217.0 kB) SOT402-1_118 [English]	08 Apr 2013
Standard product orientation 12NC ending 118 (REV 1.0) PDF (86.0 kB) SOT337-1_118 [English]	04 Apr 2013

Supporting Information (4)

Name/Description	Modified Date
Footprint for reflow soldering (REV 1.0) PDF (9.0 kB) SO-SOJ-REFLOW [English]	08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE [English]	08 Oct 2009
Footprint for reflow soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-REFLOW [English]	08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English]	08 Oct 2009

Ordering Information

Product	Status
74HC73D	Active
74HC73PW	Active
74HC73DB	Active

Package Information

Product ID	Outline Version	Reflow/Wave Soldering	Packing	Product Status	Part NumberOrdering code(12NC)	Marking	Chemical Content	LeadFree Conversion Date	EFR	IFR(FIT)	MTBF(hour)	MSL	MSL LF
74HC73PW	SOT402-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	74HC73PW,118 (9352 420 70118)	HC73	74HC73PW	week 10, 2005	84.9	6.62	1.51E8	1	1
74HC73PW	SOT402-1	SSOP-TSSOP-VSO-WAVE	Bulk Pack	Active	74HC73PW,112 (9352 420 70112)	HC73	74HC73PW	week 10, 2005	84.9	6.62	1.51E8	1	1
74HC73D	SOT108-1	SO-SOJ-REFLOW SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1 CECC	Active	74HC73D,653 (9337 144 30653)	74HC73D	74HC73D	week 30, 2004	84.9	6.62	1.51E8	1	1
74HC73D	SOT108-1	SO-SOJ-REFLOW SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE	Bulk Pack, CECC	Active	74HC73D,652 (9337 144 30652)	74HC73D	74HC73D	week 30, 2004	84.9	6.62	1.51E8	1	1
74HC73DB	SOT337-1	SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	74HC73DB,118 (9351 902 70118)	HC73	74HC73DB	week 12, 2005	84.9	6.62	1.51E8	1	1
74HC73DB	SOT337-1		Bulk Pack	Active	74HC73DB,112 (9351 902 70112)	HC73	74HC73DB	week 12, 2005	84.9	6.62	1.51E8	1	1