74VHC273FT ,74VHC CMOS logic IC seriesabsolute maximum ratings, even briefly, lead to deterioration in IC performance or evendestruction. ..
74VHC273M ,Octal D-Type Flip-Flop74VHC273 Octal D-Type Flip-FlopApril 1994Revised May 200374VHC273Octal D-Type Flip-Flop
74VHC273M ,Octal D-Type Flip-FlopFeaturesThe VHC273 is an advanced high speed CMOS Octal
74VHC273FT
74VHC CMOS logic IC series
74VHC273FT
CMOS Digital Integrated Circuits Silicon Monolithic
74VHC273FT74VHC273FT74VHC273FT74VHC273FT
1. 1. 1. 1. Functional DescriptionFunctional DescriptionFunctional DescriptionFunctional Description Octal D-Type Flip-Flop with Clear
2. 2. 2. 2. GeneralGeneralGeneralGeneral
The 74VHC273 is an advanced high speed CMOS OCTAL D-TYPE FLIP FLOP fabricated with silicon gate
C2MOS technology.
It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS
low power dissipation.
Information signals applied to D inputs are transferred to the Q outputs on the positive going edge of the clock
pulse.
When the CLR input is held "L", the Q outputs are at a low logic level independent of the other inputs.
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: fMAX = 165 MHz (typ.) at VCC = 5 V
(2) Low power dissipation: ICC = 4.0 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) = 2.0 V to 5.5 V
(7) Low noise: VOLP = 0.8 V (max)
(8) Pin and function compatible with the 74 series
(74AC/HC/AHC etc.) 273 type.
4. 4. 4. 4. PackagingPackagingPackagingPackaging
