CY54FCT480BTLMB

Parity Generators And Checkers Overview

The CY54FCT480BTLMB is a high-speed, dual 8-bit parity generator/checker manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -55°C to 125°C. The device features two independent 8-bit channels, each accepting eight data bits and one parity bit as inputs. It provides sum outputs (ODD1, ODD2) and an open-drain active-low parity-error output (ERROR). The component utilizes edge-rate control circuitry for improved noise characteristics and includes Ioff circuitry to support partial-power-down mode operation.

Parity Generators And Checkers Feature Summary

• Dual 8-bit parity generation and checking functionality with independent channels
• Open-drain active-low parity-error output designed for wired-OR expansion
• Ioff circuitry enables partial-power-down mode to prevent damaging backflow currents
• Edge-rate control circuitry significantly improves noise characteristics

Parity Generators And Checkers Applications

• Data bus error detection systems
• Memory subsystem parity checking
• Communication interface integrity verification
• Industrial control system data validation

Parity Generators And Checkers Procurement Notes

Verify the specific ordering suffix 'LMB' corresponds to the LCCC package variant when sourcing. Confirm that the procurement channel is an authorized distributor to ensure compliance with standard warranty terms. Check the product status to confirm it is listed as Active Production. Ensure the required operating temperature range aligns with the -55°C to 125°C specification provided in the datasheet.

Parity Generators And Checkers Selection Notes

Select this component when designing systems requiring robust parity checking at high speeds. The CY54FCT480T series is fully compatible with TTL input and output logic levels. Consider the CY74FCT480T variants if higher drive currents are needed or if the application operates strictly within the commercial temperature range. Verify that the system design accommodates the open-drain nature of the ERROR output for proper wired-OR configuration.

Parity Generators And Checkers Part Context

This part belongs to the FCT logic family, which offers performance comparable to advanced Schottky TTL while maintaining CMOS power consumption. The CY54FCT480T devices are functionally equivalent to other parity generators but provide enhanced speed and noise immunity through edge-rate control. They are designed for applications demanding reliable data integrity checks in complex digital environments.

Parity Generators And Checkers Replacement Considerations

CY74FCT480BTQCT

Parity Generators And Checkers FAQ

How does the ERROR output facilitate system expansion?

The ERROR output is an open-drain active-low signal designed for easy expansion of word width. Multiple devices can be connected via a wired-OR connection without increasing parity-generation or parity-checking times.

What is the purpose of the Ioff circuitry in this device?

The Ioff circuitry disables the outputs when the device is powered down. This prevents damaging current backflow through the device, supporting partial-power-down applications.