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Sélectionner tout	Attribut	Valeur
	Marque	Toshiba
	Logic Family	74VHCT
	Product Type	Octal Bus Buffer
	Logic Function	Buffer
	Schmitt Trigger Input	No
	Input Type	CMOS
	Output Type	3 State
	Mount Type	Surface
	Package Type	TSSOP
	Minimum Supply Voltage	4.5V
	Maximum Supply Voltage	5.5V
	Pin Count	20
	Maximum Propagation Delay Time @ CL	5.4ns
	Maximum High Level Output Current	-8mA
	Minimum Operating Temperature	-40°C
	Maximum Low Level Output Current	8mA
	Maximum Operating Temperature	125°C
	Length	6.5mm
	Standards/Approvals	No
	Series	74VHC
	Width	4.4 mm
	Height	1mm
	Automotive Standard	AEC-Q100
	Supply Current	4μA

	Sélectionner tout
	Marque Toshiba
	Logic Family 74VHCT
	Product Type Octal Bus Buffer
	Logic Function Buffer
	Schmitt Trigger Input No
	Input Type CMOS
	Output Type 3 State
	Mount Type Surface
	Package Type TSSOP
	Minimum Supply Voltage 4.5V
	Maximum Supply Voltage 5.5V
	Pin Count 20
	Maximum Propagation Delay Time @ CL 5.4ns
	Maximum High Level Output Current -8mA
	Minimum Operating Temperature -40°C
	Maximum Low Level Output Current 8mA
	Maximum Operating Temperature 125°C
	Length 6.5mm
	Standards/Approvals No
	Series 74VHC
	Width 4.4 mm
	Height 1mm
	Automotive Standard AEC-Q100
	Supply Current 4μA

The 74VHCT540AFT and 74VHCT541AFT are Advanced high speed CMOS OCTAL BUS BUFFERs fabricated with silicon gate C2MOS technology. They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The 74VHCT240AFT is an inverting 3-state buffer having two active-low output enables. The 74VHCT244AFT is a non-inverting 3-state buffer, and has two active-low output enables. These devices are designed to be used with 3-state memory address drivers, etc. The input voltage are compatible with TTL output voltage. These devices may be used as a level converter for interfacing 3.3 V to 5 V system. Input protection and output circuit ensure that 0 to 5.5 V can be applied to the input and output (Note) pins without regard to the supply voltage. These structure prevents device destruction due to mismatched supply and input/output voltages such as battery back up, hot board insertion, etc

Wide operating temperature range: Topr = -40 to 125 

High speed: tpd = 5.4 ns (typ.) at VCC = 5.0 V

Low power dissipation: ICC = 2.0 μA (max) at Ta = 25 

Compatible with TTL inputs : VIL = 0.8 V (max): VIH = 2.0 V (min)

Power down protection is provided on all inputs and outputs.

Balanced propagation delays: tPLH ≈ tPHL

Low noise: VOLP = 1.0 V (max)

Pin and function compatible with the 74 series (AC/HC/AHC/LV etc.) 245 type

Toshiba 3 State Octal Bus Buffer, 20-Pin TSSOP

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