The TC74LCXZA240 is a high-performance CMOS octal bus

buffer. Designed for use in 2.5-V systems, it achieves high-speed

operation while maintaining the CMOS low power dissipation.

The device is designed for low-voltage (2.5V) VCC applications,

but it could be used to interface to 5-V supply environment for

both inputs and outputs.

When Power supply voltage is turned on, turned off or VCC is

between 0 to 1.5V, output will be at high impedance.

For operation at (2.5 V) VCC, hot board insertion is applicable.

The TC74LCXZA240 is an inverting 3-state buffer having two

active-low output enables. This device is designed to be used with

3-state memory address drivers, etc.

All inputs are equipped with protection circuits against static

discharge.

特性 Features

? Low-voltage operation: VCC = 2.3 to 2.7 V

? High-speed operation: tpd = 7.5 ns (max) (VCC = 2.3 to 2.7 V)

? Output current: IOH = ?12 mA (min) /IOL = 18 mA (min)

(VCC = 2.3V)

? Available in TSSOP and VSSOP (US)

? Power-down protection provided on all inputs and outputs

? Pin and function compatible with the 74 series

(74AC/VHC/HC/F/ALS/LS etc.) 240 type