CD54HC73F Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
CD54HC73F is a dual J-K flip-flop from Texas Instruments in the HC/UH CMOS logic family, housed in a ceramic 14-pin DIP package. It operates at up to 20 MHz with 50 pF load capacitance. From $1.20 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- CD54HC73F Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.1600(MOQ 500)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD54HC73F?
- Dual J-K flip-flop with independent clock and set/reset per bit enables versatile sequential logic and frequency division functions
- HC-family CMOS logic operates at up to 20 MHz maximum frequency with a 50 pF load, suitable for medium-speed digital circuits
- Ceramic 14-pin DIP (GDIP-T14) package provides high reliability for military, aerospace, and harsh-environment board designs
- Low output current specification of 6 mA ensures compatibility with standard CMOS and TTL bus loads without additional buffers
- 15-year YTEOL guarantees long-term supply for production runs in industrial and defense applications
What is CD54HC73F used for?
CD54HC73F is used in digital frequency dividers, state machines, and sequential logic circuits in industrial controllers, military electronics, and legacy embedded systems that require through-hole component assembly. Its dual J-K flip-flop architecture is well suited for binary counters, shift registers, and clock domain synchronizers operating at clock rates up to 20 MHz. The ceramic DIP package also makes it appropriate for prototype boards and classroom demonstration of flip-flop fundamentals.
What are the specifications of CD54HC73F?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | HC/UH |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | J-K FLIP-FLOP |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.006A |
| Number of Bits | 2 |
| Number of Functions | 2 |
| 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 | 48ns |
| Propagation Delay (tpd) | 240ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| 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 |
| Trigger Type | NEGATIVE EDGE |
| fmax-Min | 23MHz |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the CD54HC73F datasheet?
CD54HC73F Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD54HC73F?
Compatible alternatives and drop-in replacements for CD54HC73F:
J-K Flip-Flop, HC/UH Series, 2-Func, Negative Edge Triggered, 2-Bit, Complementary Output, CMOS, CDIP14
Frequently Asked Questions
What is the maximum clock frequency of CD54HC73F at the rated load capacitance?
CD54HC73F operates at a maximum frequency of 20 MHz when driving a 50 pF load capacitance. This makes it suitable for medium-speed digital logic applications such as binary dividers, event counters, and synchronization circuits in systems clocked well below the 20 MHz limit.
What package does CD54HC73F use, and why is ceramic preferred over plastic in defense designs?
CD54HC73F comes in a 14-pin ceramic DIP (GDIP-T14) package. Ceramic packages are hermetically sealed against moisture, solvents, and particle contamination, which is why they are preferred in military avionics, space electronics, and downhole drilling tools that operate in extreme temperatures and harsh chemical environments.
How does the J-K flip-flop configuration in CD54HC73F differ from D-type flip-flops?
Unlike D-type flip-flops which sample a single data input, CD54HC73F J-K flip-flops have separate J (set) and K (clear) inputs, enabling toggle, hold, set, and reset functions in a single 2-bit device. This flexibility allows designers to build toggle-mode frequency dividers (J=K=1) or synchronous counters without additional gates, reducing component count.
What is the expected supply availability for CD54HC73F, and is it suitable for long-lifecycle products?
CD54HC73F carries a YTEOL (years to end-of-life) of 15 years, meaning Texas Instruments commits to production support for at least 15 more years. This makes it an appropriate selection for industrial and defense equipment with 10-year or longer service lifecycles, reducing the risk of mid-production obsolescence and costly redesign cycles.
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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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $8.0600 | $4030.00 |
| 1000+ | $7.6100 | $7610.00 |
| 10000+ | $7.1600 | $71600.00 |
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