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

The 74HC109-Q100; 74HCT109-Q100 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.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Features and benefits

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)

    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

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

  • Toggle flip-flop or "do nothing" mode

  • Wide supply voltage range:

    • For 74HC109-Q100: from 2.0 V to 6.0 V

    • For 74HCT109-Q100: from 4.5 V to 5.5 V

  • CMOS low power dissipation

  • High noise immunity

  • Input levels:

    • For 74HC109-Q100: CMOS level

    • For 74HCT109-Q100: TTL level

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

  • 74HC109-Q100 complies with JEDEC standards:

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • 74HCT109-Q100 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


型号 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
74HCT109D-Q100 Production 4.5 - 5.5 TTL ± 4 17 61 low -40~125 86 6.6 44 SO16

PCB Symbol, Footprint and 3D Model

Model Name 描述


型号 可订购的器件编号,(订购码(12NC)) 状态 标示 封装 外形图 回流焊/波峰焊 包装
74HCT109D-Q100 74HCT109D-Q100J
Active 74HCT109D SOT109-1


型号 可订购的器件编号 化学成分 RoHS RHF指示符
74HCT109D-Q100 74HCT109D-Q100J 74HCT109D-Q100 rohs rhf rhf

文档 (12)

文件名称 标题 类型 日期
74HC_HCT109_Q100 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
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
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
SOT109-1_118 SO16; Reel pack for SMD, 13"; Q1/T1 product orientation Packing information 2024-02-19
74HCT109D-Q100_Nexperia_Product_Reliability 74HCT109D-Q100 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


如果您需要设计/技术支持,请告知我们并填写 应答表 我们会尽快回复您。


文件名称 标题 类型 日期
SOT109-1 3D model for products with SOT109-1 package Design support 2020-01-22

PCB Symbol, Footprint and 3D Model

Model Name 描述


型号 Orderable part number Ordering code (12NC) 状态 包装 Packing Quantity 在线购买
74HCT109D-Q100 74HCT109D-Q100J 935332777118 Active SOT109-1_118 2,500 订单产品


作为 Nexperia 的客户,您可以通过我们的销售机构订购样品。

如果您没有 Nexperia 的直接账户,我们的全球和地区分销商网络可为您提供 Nexperia 样品支持。查看官方经销商列表

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.


型号 可订购的器件编号 订购代码(12NC) 封装 从经销商处购买
74HCT109D-Q100 74HCT109D-Q100J 935332777118 SOT109-1 订单产品