SN74HCT273DW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Octal D-Type Flip-Flop with clear, HCT logic family, 8-bit storage, 20MHz max frequency, 50pF load capacitance. From $0.222 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HCT273DW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2220(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit octal D-type flip-flop with asynchronous clear for reliable state reset
- HCT logic family with TTL-compatible inputs and CMOS low-power operation
- 20MHz maximum operating frequency suitable for high-speed digital designs
- 20-pin Small Outline Package (SOIC) for compact PCB footprint
- 4mA output sink current with 50pF load capacitance support
Applications
The SN74HCT273DW is widely used in microprocessor-based systems for data bus buffering and address latching. It is ideal for register banks, I/O port expansion, and synchronous data storage in embedded control systems. The device also serves well in communication interfaces and industrial automation equipment where reliable 8-bit data latching is required.
Specifications
| YTEOL | 0 |
| Family | HCT |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.004A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 42ns |
| Propagation Delay (tpd) | 42ns |
| 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 | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 25MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74HCT273DW:
Flip-Flop, HCT Series, 8-Func, Positive Edge Triggered, 8-Bit, True Output, CMOS, PDSO20
Flip-Flop, HCT Series, 1-Func, Positive Edge Triggered, 8-Bit, True Output, CMOS, PDSO20
D Flip-Flop, HCT Series, 8-Func, Positive Edge Triggered, 8-Bit, True Output, CMOS, PDSO20
D Flip-Flop, HCT Series, 1-Func, Positive Edge Triggered, 8-Bit, True Output, CMOS, PDSO20
D Flip-Flop, HCT Series, 1-Func, Positive Edge Triggered, 8-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
What is the maximum operating frequency of the SN74HCT273DW?
The SN74HCT273DW supports a maximum operating frequency of 20MHz (20,000,000 Hz), making it suitable for high-speed digital logic applications including microprocessor data buses and synchronous register designs.
What package type does the SN74HCT273DW use and how many pins does it have?
The SN74HCT273DW comes in a 20-pin Small Outline Package (SOIC, JESD-30 code R-PDSO-G20), which offers a compact footprint ideal for space-constrained PCB designs in consumer electronics and industrial systems.
What are the key differences between the SN74HCT273DW and standard CMOS variants?
The SN74HCT273DW belongs to the HCT logic family, which features TTL-compatible input voltage thresholds while maintaining CMOS low-power output levels. This makes it directly interchangeable with TTL devices while offering reduced power consumption compared to standard bipolar TTL flip-flops.
What is the typical application for the SN74HCT273DW?
The SN74HCT273DW is commonly used for 8-bit data latching, address bus buffering, I/O port expansion, and register storage in microprocessor systems, embedded controllers, and industrial automation equipment requiring reliable synchronous data capture.
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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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