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74HC109PW

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

The 74HC109; 74HCT109 is a dual positive edge triggered JK flip-flop featuring individual J and K inputs, clock (CP) inputs, set (SD) and reset (RD) inputs and complementary Q and Q 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 LOW-to-HIGH clock transition for predictable operation. The JK design allows operation as a D-type flip-flop by connecting the J and K inputs together. This device features reduced input threshold levels to allow interfacing to TTL logic levels. Inputs also include clamp diodes, this enables 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

  • J and K inputs for easy D-type flip-flop

  • Toggle flip-flop or "do nothing" mode

  • Wide supply voltage range:

    • For 74HC109: from 2.0 V to 6.0 V

    • For 74HCT109: from 4.5 V to 5.5 V

  • CMOS low power dissipation

  • High noise immunity

  • Input levels:

    • For 74HC109: CMOS level

    • For 74HCT109: TTL level

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

  • 74HC109 complies with JEDEC standards:

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • 74HCT109 complies with JEDEC standard 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 +85 °C and from -40 °C to +125 °C

Parametrics

Type number VCC (V) Logic switching levels Output drive capability (mA) tpd (ns) fmax (MHz) Power dissipation considerations Tamb (°C) Package name
74HC109PW 2.0 - 6.0 CMOS ± 5.2 15 75 low -40~125 TSSOP16

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HC109PW 74HC109PWJ
(935691205118)
Active 74HC109 SOT403-1
TSSOP16
(SOT403-1)
SOT403-1 SSOP-TSSOP-VSO-WAVE
SOT403-1_118

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74HC109PW 74HC109PWJ 74HC109PW rohs rhf rhf
Quality and reliability disclaimer

Documentation (10)

File name Title Type Date
74HC_HCT109 Dual JK flip-flop with set and reset; positive-edge-trigger Data sheet 2024-02-21
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
SOT403-1 3D model for products with SOT403-1 package Design support 2020-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
TSSOP16_SOT403-1_mk plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body Marcom graphics 2017-01-28
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
SOT403-1_118 TSSOP16; Reel pack for SMD, 13"; Q1/T1 product orientation Packing information 2020-04-21
74HC109PW_Nexperia_Product_Reliability 74HC109PW Nexperia Product Reliability Quality document 2024-06-16
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

Support

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Models

File name Title Type Date
SOT403-1 3D model for products with SOT403-1 package Design support 2020-01-22

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
74HC109PW 74HC109PWJ 935691205118 Active SOT403-1_118 2,500 Order product

Sample

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How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HC109PW 74HC109PWJ 935691205118 SOT403-1 Order product