×

74HC112D

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 VCC.

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 VCC (V) Logic switching levels Output drive capability (mA) tpd (ns) fmax (MHz) Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Ψth(j-top) (K/W) Rth(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

PCB Symbol, Footprint and 3D Model

Model Name Description

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HC112D 74HC112D,653
(933714490653)
Active 74HC112D SOT109-1
SO16
(SOT109-1)
SOT109-1 SO-SOJ-REFLOW
SO-SOJ-WAVE
WAVE_BG-BD-1
Not available

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74HC112D 74HC112D,653 74HC112D rohs rhf rhf
Quality and reliability disclaimer

Documentation (13)

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
SOT109-1 3D model for products with SOT109-1 package Design support 2020-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
SO16_SOT109-1_mk plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body Marcom graphics 2017-01-28
74HC112D_Nexperia_Product_Reliability 74HC112D Nexperia Product Reliability Quality document 2023-05-29
SO-SOJ-REFLOW Footprint for reflow soldering Reflow soldering 2009-10-08
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31
SO-SOJ-WAVE Footprint for wave soldering Wave soldering 2009-10-08
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08