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74HC109D

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 nJ and nK inputs. It has clock (nCP) inputs, set (nSD) and reset (nRD) inputs and complementary nQ and nQ outputs. The set and reset are asynchronous active LOW inputs and operate independently of the clock input. The nJ and nK inputs control the state changes of the flip-flops as described in the mode select function table. The nJ and nK 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 nJ and nK inputs together. Inputs include clamp diodes. It 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.

可订购部件

型号 可订购的器件编号 订购代码(12NC) 封装 从经销商处购买
74HC109D 74HC109D,653 933714480653 SOT109-1 订单产品
74HC109D 74HC109D,652 933714480652 SOT109-1 订单产品

特性

  • Input levels:
    • For 74HC109: CMOS level
    • For 74HCT109: TTL level
  • J and K inputs for easy D-type flip-flop
  • Toggle flip-flop or "do nothing" mode
  • Specified in compliance with JEDEC standard no. 7A
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Multiple package options
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

目标应用

参数类型

型号Product statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC109DProduction2.0 - 6.0CMOS± 5.21575low-40~125866.644SO16

Package

型号可订购的器件编号,(订购码(12NC))状态标示封装尺寸版本回流焊/波峰焊包装
74HC109D74HC109D,653
( 9337 144 80653 )
Active74HC109D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECC
74HC109D,652
( 9337 144 80652 )
Active74HC109DBulk Pack, CECC

品质、可靠性及化学成分

型号可订购的器件编号化学成分RoHS / RHFEFRIFRMTBF(小时)MSLMSL无铅
74HC109D74HC109D,65374HC109D84.96.621.51E811
74HC109D74HC109D,65274HC109D84.96.621.51E811
品质及可靠性免责声明

文档 (5)

文件名称标题类型日期
74HC_HCT109Dual JK flip-flop with set and reset; positive-edge triggerData sheet2020-04-01
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08

支持

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订购、定价与供货

型号Orderable part numberOrdering code (12NC)包装在线购买
74HC109D74HC109D,653933714480653Reel 13" Q1/T1 CECC订单产品
74HC109D74HC109D,652933714480652Bulk Pack, CECC订单产品

样品

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