CY54FCT480T Texas instruments

CY54FCT480T

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CY54FCT480T

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Описание

The \x92FCT480T devices are high-speed, dual, 8-bit parity generators/checkers. Each parity generator/checker accepts eight data bits and one parity bit as inputs, and generates a sum and parity-error (ERROR\) output. These devices can be used in odd-parity systems. ERROR\ is an open-drain output designed for easy expansion of the word width by a wired-OR connection of several \x92FCT480T devices. Because no additional logic is needed, the parity-generation or parity-checking times remain the same as for an individual \x92FCT480T device. 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.

Function, Pinout, and Drive Compatible With FCT and F Logic
Reduced V_OH (Typically = 3.3 V) Versions of Equivalent FCT Functions
Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
I_off Supports Partial-Power-Down Mode Operation
Matched Rise and Fall Times
Fully Compatible With TTL Input and Output Logic Levels
Two 8-Bit Parity Generators/Checkers
Open-Drain Active-Low Parity-Error Output
Expandable for Larger Word Widths
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
CY54FCT480T
- 32-mA Output Sink Current
- 12-mA Output Source Current
CY74FCT480T
- 64-mA Output Sink Current
- 32-mA Output Source Current

Number of channels	8
Technology family	FCT
Input type	TTL-Compatible CMOS
Output type	Push-Pull
Features	Partial power down (Ioff), Very high speed (tpd 5-10ns)
Operating temperature range (°C)	-55 to 125
Rating	Military