SN74ALS280DRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74ALS280DRG4 is a 9-bit odd/even parity generator and checker logic IC from Texas Instruments in the ALS family, housed in a 14-pin SOIC package with complementary 3-state outputs and 50 pF load capacitance rating. It simultaneously provides both odd and even parity outputs for 9-bit data words, enabling flexible error detection in digital communication systems. Available from stock with competitive pricing and worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74ALS280DRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 9-bit parity generation and checking with simultaneous odd and even outputs eliminates the need for two separate devices in data integrity circuits
- Complementary 3-state outputs allow direct bus connection and enable multiple devices to share a common data bus without signal contention
- ALS (Advanced Low-power Schottky) logic family delivers improved speed and reduced power consumption compared to standard TTL for high-speed digital systems
Applications
The SN74ALS280DRG4 is commonly used in memory subsystems, data bus interfaces, and communication controllers where byte-wide parity error detection is required to ensure data integrity. Its simultaneous odd and even parity outputs make it ideal for ECC (error-correcting code) pre-processing stages in DRAM controllers and UART/SPI data links. The device is also widely used in FPGA prototyping boards and legacy microprocessor systems requiring hardware parity generation for I/O and memory transactions.
Specifications
| YTEOL | 0 |
| Additional Feature | ODD/EVEN PARITY GENERATOR |
| Family | ALS |
| JESD-30 Code | R-PDSO-G14 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | PARITY GENERATOR/CHECKER |
| Number of Bits | 9 |
| Number of Functions | 1 |
| Output Characteristics | 3-STATE |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 16mA |
| Propagation Delay (tpd) | 22ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74ALS280DRG4:
9-Bit, Complementary Output, TTL, PDSO14
9-Bit, Complementary Output, TTL, PDSO14
Frequently Asked Questions
How many bits does the SN74ALS280DRG4 parity generator support?
The SN74ALS280DRG4 supports 9-bit parity generation and checking, processing a 9-bit input word and simultaneously producing both odd and even parity output signals, covering standard 8-bit data bytes with one parity bit.
Does the SN74ALS280DRG4 provide both odd and even parity outputs simultaneously?
Yes, the SN74ALS280DRG4 provides complementary outputs — both the odd parity and even parity results are available at the same time, giving designers flexibility to choose the parity convention that matches their system protocol without additional logic.
What is the output type of the SN74ALS280DRG4 and can it be connected to a shared bus?
The SN74ALS280DRG4 features 3-state (tri-state) outputs, allowing multiple devices to be connected to a shared data bus. When disabled, the outputs go to a high-impedance state, preventing bus contention in multi-driver configurations.
What package and logic family does the SN74ALS280DRG4 use?
The SN74ALS280DRG4 is housed in a 14-pin Small Outline IC (SOIC) package (JESD-30 code R-PDSO-G14) and belongs to the ALS (Advanced Low-power Schottky) logic family, which offers faster switching speed and lower power than standard LS TTL parts.
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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.
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