Philips 74HC240
The 74HC/HCT240 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. The 74HC/HCT240 are octal inverting buffer/line drivers with 3-state outputs.| Part No. | 74HC240 |
|---|---|
| Datasheet | 74HC240 Download |
| Manufacturer |  Philips |
| Description | Octal buffer/line driver |
| Buy | Stock & Price |
FEATURES
● Output capability: bus driver● ICC category: MSI
GENERAL DESCRIPTION
74HC/HCT240 7A. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on nOE causes the outputs to assume a high impedance OFF-state. The “240” is identical to the “244” but has inverting outputs. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns TYPICAL SYMBOL tPHL/ tPLH PARAMETER propagation delay 1An to 1Yn; 2An to 2Yn input capacitance power dissipation capacitance per buffer notes 1 and 2 CONDITIONS HC CL = 15 pF; VCC = 5 V 9 9 HCT ns UNIT CI CPD Notes 3.5 30 3.5 30 pF pF 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”.
