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Function, Pinout, and Drive Compatible

With FCT and F Logic

Reduced VOH (Typically = 3.3 V) Versions

of Equivalent FCT Functions

Edge-Rate Control Circuitry for

Significantly Improved Noise

Characteristics

Ioff Supports Partial-Power-Down Mode

Operation

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

Matched Rise and Fall Times

Fully Compatible With TTL Input and

Output Logic Levels

CY54FCT240T

– 48-mA Output Sink Current

12-mA Output Source Current

CY74FCT240T

– 64-mA Output Sink Current

32-mA Output Source Current

3-State Outputs

description

The ’FCT240T devices are octal buffers and line

drivers designed to be employed as memory

address drivers, clock drivers, and

bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their

fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow

direct interface with TTL, NMOS, and CMOS devices without external components.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the

outputs, preventing damaging current backflow through the device when it is powered down.