CD74AC273M Texas Instruments In Stock
CD74AC273M is an octal D-type flip-flop with reset in the AC logic family by Texas Instruments. Key specs: 8-bit parallel register with active-low reset, 2 V to 6 V supply range, and SOIC-20 package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal 8-bit D-type flip-flop with active-low asynchronous master reset for simultaneous clearing of all 8 registers in a single control operation
- AC logic family with high-speed output transitions providing noise immunity and compatibility across 2 V to 6 V supply voltages
- SOIC-20 package offering compact SMT footprint for dense digital logic circuit boards in industrial and commercial applications
- Direct pin-compatible replacement for standard CMOS and TTL 273 octal flip-flop devices enabling easy second-source substitution
Applications
The CD74AC273M is designed for data storage and pipeline register applications in digital logic systems, including address latching in microprocessor bus interfaces, output port registers in industrial control systems, and data buffering in communication equipment. Its 8-bit parallel clocked operation with asynchronous reset makes it suitable for state machine outputs, FPGA interface glue logic, and parallel data register stages in embedded computing designs. The device also serves in bus interface buffers, control word registers, and high-speed data path latching applications in both commercial and industrial electronics.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the function of the CD74AC273M?
The CD74AC273M is an octal (8-bit) D-type positive-edge-triggered flip-flop with an active-low asynchronous master reset. On each rising clock edge, all 8 D inputs are sampled and stored to the Q outputs simultaneously. The active-low reset clears all outputs to logic low independent of the clock, making it suitable for initialization and synchronous data storage applications.
What supply voltage range does the CD74AC273M support?
The CD74AC273M operates over a supply voltage range of 2 V to 6 V, typical of the AC (Advanced CMOS) logic family. This range makes it compatible with 3.3 V and 5 V logic systems, allowing direct interfacing with both TTL-compatible and pure CMOS digital logic devices without level translation.
What package does the CD74AC273M come in?
The CD74AC273M is available in a 20-pin SOIC (Small Outline Integrated Circuit) package, as indicated by the M suffix designation used by Texas Instruments. The SOIC-20 package has a standard 1.27 mm pin pitch and is suitable for surface-mount assembly on standard FR4 PCBs in commercial and industrial applications.
What are typical applications for the CD74AC273M?
Typical applications include address and data bus registers in microprocessor systems, output port latches in PLC and industrial controllers, pipeline registers in DSP signal chains, control word storage in communication interface cards, and general-purpose 8-bit data storage in digital logic designs. The asynchronous reset is especially useful for power-on initialization of register-based state machines.
Is the CD74AC273M compatible with other logic families?
Yes, the CD74AC273M in the AC logic family is designed to interface with TTL and other CMOS logic families. Its input thresholds and output drive levels are compatible with standard 74AC, 74ACT, 74HC, and 74LS/HCT devices operating at 5 V, enabling easy integration into mixed-logic-family PCB designs without additional buffering or level shifting.
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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.
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