74HC112; 74HCT112

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

The 74HC112; 74HCT112 is a dual negative-edge triggered JK flip-flop. It features individual J and K inputs, clock (nCP) set (nSD) and reset (nRD) inputs. It also has complementary nQ and nQ outputs. The set and reset are asynchronous active LOW inputs and operate independently of the clock input. The J and K inputs control the state changes of the flip-flops as described in the mode select function table. The J and K inputs must be stable one set-up time prior to the HIGH-to-LOW clock transition for predictable operation. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of V_CC.

Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times.

Features and benefits

Input levels:
- For 74HC112: CMOS level
- For 74HCT112: TTL level
Asynchronous set and reset
Specified in compliance with JEDEC standard no. 7A
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 +85 °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
74HC112D	Production	2.0 - 6.0	CMOS	± 5.2	15	66	low	-40~125	76	2.4	34	SO16
74HC112PW	Production	2.0 - 6.0	CMOS	± 5.2	17	66	low	-40~125	109	1.0	36.7	TSSOP16
74HCT112D	Production	4.5 - 5.5	TTL	± 4	19	70	low	-40~125	75	1.7	33	SO16
74HCT112PW	Production	4.5 - 5.5	TTL	± 4	19	70	low	-40~125	109	1.0	36.7	TSSOP16

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74HC112D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_653	Active	74HC112D	74HC112D,653 ( 9337 144 90653 )
74HC112PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_118	Active	HC112	74HC112PW,118 ( 9351 983 00118 )
74HCT112D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_653	Active	74HCT112D	74HCT112D,653 ( 9337 149 70653 )
74HCT112PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_118	Active	HCT112	74HCT112PW,118 ( 9351 984 90118 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product
74HC112D	933714490652	2021-12-31	2022-06-30	74HC112D
74HC112PW	935198300112	2021-12-31	2022-06-30	74HC112PW
74HCT112D	933714970652	2021-12-31	2022-06-30	74HCT112D
74HCT112PW	935198490112	2021-12-31	2022-06-30	74HCT112PW

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74HC112D	74HC112D,653	74HC112D	week 6, 2004
74HC112PW	74HC112PW,118	74HC112PW	week 10, 2005
74HCT112D	74HCT112D,653	74HCT112D	week 6, 2004
74HCT112PW	74HCT112PW,118	74HCT112PW	week 10, 2005

Quality and reliability disclaimer

Documentation (9)

File name	Title	Type	Date
74HC_HCT112	Dual JK flip-flop with set and reset; negative-edge trigger	Data sheet	2024-01-15
AN11044	Pin FMEA 74HC/74HCT family	Application note	2019-01-09
HCT_USER_GUIDE	HC/T User Guide	User manual	1997-10-31
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
SOT109-1	plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body	Package information	2023-11-07
SOT403-1	plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body	Package information	2023-11-08
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08

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