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74HCT540

Philips
Part Number 74HCT540
Manufacturer Philips
Description Octal buffer/line driver
Published Apr 23, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC06 74HC/HCT/HCU/HCMOS Logic Fam...
Datasheet PDF File 74HCT540 PDF File

74HCT540
74HCT540

Overview
INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications • The IC06 74HC/HCT/HCU/HCMOS Logic Package Information • The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT540 Octal buffer/line driver; 3-state; inverting Product specification File under Integrated Circuits, IC06 December 1990 Philips Semiconductors Product specification Octal buffer/line driver; 3-state; inverting FEATURES • Inverting outputs • Output capability: bus driver • ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT540 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL).
They are specified in compliance with JEDEC standard no.
7A.
QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns 74HC/HCT540 The 74HC/HCT540 are octal inverting buffer/line drivers with 3-state outputs.
The 3-state outputs are controlled by the output enable inputs OE1 and OE2.
A HIGH on OEn causes the outputs to assume a high impedance OFF-state.
The “540” is identical to the “541” but has inverting outputs.
TYPICAL SYMBOL tPHL/ tPLH CI CPD Notes 1.
CPD is used to determine the dynamic power dissipation (PD in µW): PD = CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where: fi = input frequency in MHz fo = output frequency in MHz ∑ (CL × VCC2 × fo) = sum of outputs CL = output load capacitance in pF VCC = supply voltage in V 2.
For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC − 1.
5 V ORDERING INFORMATION See “74HC/HCT/HCU/HCMOS Logic Package Information”.
PARAMETER propagation delay An to Yn input capacitance power dissipation capacitance per buffer notes 1 and 2 CONDITIONS HC CL = 15 pF; VCC = 5 V 9 3.
5 39 HCT 11 3.
5 44 ns pF pF UNIT December 1990 2 Philips Semiconductors Product specification Octal buffer/line driver; 3-state; inverting PIN DESCRIPTION PIN NO.
1, 19 2, 3, 4, 5, 6, 7, 8, 9 10 18, 17, 16, 15, 14, 13, 12, 11 20 SYMBOL OE1, OE2 A0 to A7 GND Y0 t...


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