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Toshiba Semiconductor 74LCX74FT — Discrete Semiconductors
Toshiba Semiconductor

Toshiba 74LCX74FT D-Type Flip-Flop, 150 MHz, 14-TSSOP

MPN74LCX74FT
End of Life

Toshiba Semiconductor 74LCX series D-Type flip-flop, 74LCX74FT, dual 1-bit positive edge triggered with set and reset, complementary outputs, 150 MHz clock, 7ns propagation delay at 3.3V, 14-TSSOP package.

$0.45Ref. price · indicative, final on quote
74LCX74FT datasheet
Packaging14-TSSOP (0.173", 4.40mm Width)
StockIn Stock (17)
Lead timeIn Stock wk
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

74LCX74FT Technical Specifications
ParameterValue
TypeD-Type
Series74LCX
Output typeComplementary
Trigger typePositive Edge
Mounting typeSurface Mount
Voltage1.65V ~ 3.6V
Current - quiescent10 µA
Current - output high, low24mA, 24mA
Frequency150 MHz
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionSet(Preset) and Reset
Case14-TSSOP (0.173\", 4.40mm Width)
Input capacitance7 pF
Number of elements2
Number of bits per element1
Max propagation delay @ v, max CL7ns @ 3.3V, 50pF

Product details

150 MHz dual D-type with set/reset — the 74LCX74FT

The Toshiba 74LCX74FT is a dual D-type flip-flop from the 74LCX low-voltage CMOS family, clocked at 150 MHz with positive-edge triggering and independent Set (Preset) and Reset inputs per element. Each of the two flip-flops stores one bit and drives complementary outputs, sinking or sourcing 24 mA per output — enough to drive a downstream logic input or a low-power LED indicator without a buffer.

Timing and drive — what the 7 ns delay means on the bench

Input capacitance is 7 pF typical — a light load on the driving stage, but in a high-fanout clock tree the cumulative capacitance of multiple 74LCX74FT inputs still needs a clock buffer rated for the total load.

Frequently asked questions

What is the closest functional second-source to the 74LCX74FT?

The 74LCX273FT(AJ) and 74LCX273FT are octal D-type flip-flops from the same 74LCX family, but they are not drop-in replacements — the 74LCX74FT is a dual flip-flop (2 bits) with set/reset and complementary outputs, while the 74LCX273 is an octal (8-bit) with a common reset and non-inverted outputs only. The pinout and function differ; a board designed for the 74LCX74FT cannot accept the 74LCX273 without a layout change.