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74VHC125FTTOSHIBA ?N/a200avai74VHC CMOS logic IC series


74VHC125FT ,74VHC CMOS logic IC seriesabsolute maximum ratings, even briefly, lead to deterioration in IC performance or evendestruction. ..
74VHC125M ,QUAD BUS BUFFER (3-STATE)FeaturesThe VHC125 contains four independent non-inverting buff-

74VHC125FT
74VHC CMOS logic IC series
74VHC125FT,74VHC126FT
CMOS Digital Integrated Circuits Silicon Monolithic
74VHC125FT,74VHC126FT74VHC125FT,74VHC126FT74VHC125FT,74VHC126FT74VHC125FT,74VHC126FT
1. 1. 1. 1. Functional DescriptionFunctional DescriptionFunctional DescriptionFunctional Description Quad Bus Buffer, Non-Inverted 3-State Outputs
74VHC125FT: Quad Bus Buffer
74VHC126FT: Quad Bus Buffer
2. 2. 2. 2. GeneralGeneralGeneralGeneral
The 74VHC125FT/126FT are high speed CMOS QUAD BUS BUFFERs fabricated with silicon gate C2MOS
technology.
They achieve the high speed operation similar to equivalent Bipolar Shottky TTL while maintaining the CMOS
low power dissipation.
The 74VHC125FT requires the 3-state control input G to be set high to place the output into the high impedance
state, whereas the 74VHC126FT requires the control input G to be set low to place the output into high impedance.
An input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply
voltage. This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up.
This circuit prevents device destruction due to mismatched supply and input voltages.
3. 3. 3. 3. FeaturesFeaturesFeaturesFeatures
(1) High speed: Propagation delay time = 3.8 ns (typ.) at VCC = 5 V
(2) Low power dissipation: ICC = 4 µA (max) at Ta = 25 
(3) High noise immunity: VNIH = VNIL = 28% VCC (min)
(4) Power down protection is provided on all inputs.
(5) Balanced propagation delays: tPLH ≈ tPHL
(6) Wide operating voltage range: VCC(opr) = 2 V to 5.5 V
(7) Low noise: VOLP = 0.8 V (max)
(8) Pin and function compatible with 74 series (74AC/HC/AHC/LV etc.) 125 or 126 type.
4. 4. 4. 4. PackagingPackagingPackagingPackaging
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