Specifications

Technical Reference

Legislation and Compliance

Product Details

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Select all	Attribute	Value
	Brand	Toshiba
	Logic Family	74VHC
	Mounting Type	Surface Mount
	Package Type	TSSOP
	Pin Count	20
	Maximum High Level Output Current	-8mA
	Maximum Low Level Output Current	8mA
	Maximum Propagation Delay Time @ Maximum CL	15 ns @ 50 pF
	Dimensions	6.5 x 4.4 x 1mm
	Maximum Operating Supply Voltage	5.5 V
	Minimum Operating Temperature	-40 °C
	Height	1mm
	Width	4.4mm
	Length	6.5mm
	Automotive Standard	AEC-Q100
	Propagation Delay Test Condition	50pF
	Minimum Operating Supply Voltage	2 V
	Maximum Operating Temperature	+125 °C

	Select all
	Brand Toshiba
	Logic Family 74VHC
	Mounting Type Surface Mount
	Package Type TSSOP
	Pin Count 20
	Maximum High Level Output Current -8mA
	Maximum Low Level Output Current 8mA
	Maximum Propagation Delay Time @ Maximum CL 15 ns @ 50 pF
	Dimensions 6.5 x 4.4 x 1mm
	Maximum Operating Supply Voltage 5.5 V
	Minimum Operating Temperature -40 °C
	Height 1mm
	Width 4.4mm
	Length 6.5mm
	Automotive Standard AEC-Q100
	Propagation Delay Test Condition 50pF
	Minimum Operating Supply Voltage 2 V
	Maximum Operating Temperature +125 °C

The 74VHC240FT and 74VHC244FT 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 74VHC240FT is an inverting 3-state buffer having two active-low output enables. The 74VHC244FT 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. 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.

Wide operating temperature range: Topr = -40 to 125 
High speed: tpd = 3.9 ns (typ.) at VCC = 5 V
Low power dissipation: ICC = 4.0 μA (max) at Ta = 25 
High noise immunity: VNIH = VNIL = 28 % VCC (min)
Power down protection is provided on all inputs.
Balanced propagation delays: tPLH ≈ tPHL
Wide operating voltage range: VCC(opr) = 2.0 V to 5.5 V
Low noise: VOLP = 0.8 V (max)
Pin and function compatible with the 74 series (AC/HC/AHC/LV etc.) 240 or 244 type

Toshiba 74VHC244FT Quad Bus Buffer, 20-Pin TSSOP