WMSIC Electronic Components

TC7WH74FK,LJ(CT TC7WH74FK

ModelTC7WH74FK,LJ(CT
PackageUS-8
BrandTOSHIBA
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TOSHIBA TC7WH74FK, LJ(CT
Type
TOSHIBA
Minimum package
3000 圆盘

Technical parameters

Electronic Component
positionsand positions
Electronic Component
Electronic Component
Electronic Component
TOSHIBA
Electronic Component
TC7WH74FK,LJ(CT
Electronic Component
1
Package
US-8
Type
D
Electronic Component
Flip-Flop
Electronic Component
TC7WH
Electronic Component
0.022g
Electronic Component
1
Electronic Component
Electronic Component
Electronic Component
1
Latching
500ps
Electronic Component
BM0229921511
Operating Temperature
40℃~+85℃

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

TC7WH74FK,LJ(CT) 产品概述

一、概述

TC7WH74FK,LJ(CT) 是东芝(TOSHIBA)TC7WH 系列的一款单位元 D 型触发器,具有正边沿触发及置位/复位功能。器件为 1 个元件、1 位输出,输出为互补型(Q 与 /Q),封装为 VFSOP(US-8,0.091" / 2.30 mm 宽)。器件支持宽工作电压 2.0 V ~ 5.5 V、工作温度范围 -40 ℃ ~ +85 ℃,适用于对功耗、速度和体积有综合要求的数字电路设计。

二、主要电参数

  • 工作电压:2.0 V ~ 5.5 V
  • 静态电流(Iq):典型 2 μA(低功耗特性,利于电池供电系统)
  • 输出驱动:IOH / IOL = 8 mA(源/漏均可提供 8 mA 驱动能力)
  • 传播延迟(tpd):9.3 ns @ 5 V,CL = 50 pF(以此条件计算)
  • 最大时钟频率(fc):约 115 MHz(作为参考,应结合布局与负载确认)
  • 建立时间(tsetup):5 ns;保持时间(thold):500 ps
  • 输入电容:约 4 pF
  • 工作温度:-40 ℃ ~ +85 ℃

三、功能特点

  • 正边沿触发 D 型触发器,带异步置位(SET)与复位(RESET)功能,便于实现同步/异步控制。
  • 互补推挽输出结构(Q 与 /Q),输出信号完整,可直接驱动后级 TTL/CMOS 门电路(受限于 IO 驱动能力)。
  • 宽电源电压范围支持多电平系统直连,便于与 3.3 V、5 V 等系统兼容。
  • 极低静态电流,适合低功耗和便携式应用。

四、典型应用场景

  • 时序寄存与数据缓存:寄存单比特状态或用于多位并联构成寄存器。
  • 时钟同步与锁存:沿触发特性适用于数据同步和去抖动后的锁存。
  • 计数器与分频器基单元:配合逻辑可构建高可靠性的计数/分频模块。
  • 工业与汽车电子低功耗控制逻辑(温度范围宽)、以及便携式设备的状态保持电路。

五、设计与使用建议

  • 时序裕量:请以器件给定的建立(5 ns)和保持(0.5 ns)时间为基准,留足时序裕量并考虑系统毛刺与时钟抖动。
  • 负载条件:传播延迟为 CL = 50 pF 时的标称值,若驱动较大电容应重新评估延迟与最大频率。
  • 电源与退耦:建议在器件电源端加 0.1 μF 旁路电容以抑制瞬态噪声,保证稳定工作。
  • 未使用引脚处理:未使用的输入端不应悬浮,应拉到确定电平以避免功耗或错误触发。
  • 封装与焊接:VFSOP/US-8 封装适合小型化 PCB 布局,注意焊盘热回流工艺以保证可靠焊接。

以上为 TC7WH74FK,LJ(CT) 的关键特性与设计注意事项。根据具体应用(负载、电源噪声与工作频率),在系统级验证中再确认时序裕量与热/电特性,以保证稳健工作。

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