CD54HCT280F3A Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CD54HCT280 is a high-speed CMOS 9-bit odd/even parity generator and checker in the HCT logic family. Key specs: 4.5V to 5.5V supply, -55°C to 125°C range, 14-pin ceramic DIP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- CD54HCT280F3A Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 9-bit parity generation and checking in a single IC enables real-time error detection for data integrity verification in digital systems
- Dual odd/even parity outputs allow flexible use as either a parity generator or checker without external inversion logic
- HCT logic family with TTL-compatible inputs enables direct interfacing with legacy 5V TTL data buses and processors
Applications
The CD54HCT280F3A is designed for data integrity checking in memory systems, data communication interfaces, and digital computing equipment where error detection is critical. Its 9-bit parity capability supports standard 8-bit data byte plus parity bit implementations used in DRAM, SRAM, and serial communication protocols. The ceramic DIP package and wide -55°C to 125°C operating range make it ideal for military, aerospace, and ruggedized industrial equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | HCT |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | PARITY GENERATOR/CHECKER |
| Max I(ol) | 0.004A |
| Number of Bits | 9 |
| Number of Functions | 1 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 56ns |
| Propagation Delay (tpd) | 68ns |
| Qualification Status | Not Qualified |
| Screening Level | 38535Q/M;38534H;883B |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the CD54HCT280 do?
The CD54HCT280 is a 9-bit odd/even parity generator and checker that computes the parity of 9 input bits and provides separate odd and even parity output signals, enabling error detection in digital data transmission and memory applications.
How does the CD54HCT280 support both odd and even parity?
The CD54HCT280 provides two complementary outputs: one for odd parity and one for even parity, allowing system designers to select the appropriate parity convention without additional external logic gates or inverters.
What temperature range does the CD54HCT280F3A support?
The CD54HCT280F3A supports a military-grade operating temperature range of -55°C to +125°C, ensuring reliable parity checking performance in aerospace, defense, and industrial systems exposed to extreme temperature conditions.
What package does the CD54HCT280F3A use?
The CD54HCT280F3A is packaged in a 14-pin ceramic DIP (R-GDIP-T14), providing excellent hermetic sealing and mechanical reliability for high-reliability applications in military and aerospace environments.
What are common applications for the CD54HCT280 parity checker?
Common applications include memory parity error detection in DRAM and SRAM systems, data bus integrity checking, error detection in serial communication lines, and ECC memory subsystems in ruggedized computing equipment and industrial controllers.
Related Guides
TPS61291DRVR Selection Guide: Low-Quiescent-Current Boost Converters for IoT and Wearables
How to select the TPS61291DRVR and low-Iq boost converters for IoT, wearables, and coin-cell designs. Compares specs, packages, and alternatives from TI, ADI, and Microchip.
May 13, 2026
TMS5704357BZWTQQ1 Selection Guide: Choosing the Right TMS570 Automotive MCU Variant
Compare TMS570 automotive MCU variants by ASIL level, flash, package, and peripherals. Find the right fit from entry-level LQFP to the ASIL-D TMS5704357BZWTQQ1.
May 13, 2026
TI Hercules TMS5704357BZWTQQ1 Design Guide for Automotive ASIL-D and Industrial Functional Safety
Complete integration guide for the TI Hercules TMS5704357BZWTQQ1 dual-core lockstep Cortex-R5F MCU: lockstep CPU, ECC RAM, FlexRay/CAN-FD, and ASIL-D pitfalls.
May 12, 2026
PTN78000WAH Selection Guide: Choosing the Right 1.5 A 36 V Step-Down Power Module
Compare PTN78000WAH against PTN78000WAS, PTN78060WAH, and other 1.5A 36V step-down modules. Covers package, current rating, efficiency, and drop-in replaceability.
May 12, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”