CD54HCT4020F3A Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The CD54HCT4020F3A is a 14-stage binary counter in the High-Speed CMOS HCT logic family, housed in a 16-Pin CDIP ceramic package rated from -55°C to 125°C. Provides outputs from 12 stages with 50 pF load capacitance and TTL-compatible inputs. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD54HCT4020F3A Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Non-compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 14-stage binary ripple counter with outputs accessible from 12 internal stages for flexible frequency division
- HCT logic family offering TTL-compatible input thresholds combined with CMOS low-power operation
- Military-grade 16-Pin CDIP ceramic package rated -55°C to 125°C for harsh environments
- Up-counting operation with 50 pF load capacitance supporting high-speed clocking applications
Applications
The CD54HCT4020F3A 14-stage binary counter is suited for frequency division, real-time clock generation, and event counting in military, aerospace, and industrial control systems. Its HCT family TTL-compatible inputs allow direct interfacing with legacy TTL logic while providing low-power CMOS outputs. The device is used in timer circuits, clock dividers, and sequential logic controllers requiring reliable operation across extreme temperature ranges.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Not Compliant |
| YTEOL | 15 |
| Additional Feature | OUTPUT FROM 12 STAGES AVAILABLE |
| Count Direction | UP |
| Family | HCT |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Load/Preset Input | NO |
| Logic IC Type | BINARY COUNTER |
| Max Frequency@Nom-Sup | 16000000Hz |
| Max I(ol) | 0.004A |
| Mode of Operation | ASYNCHRONOUS |
| Number of Bits | 14 |
| Number of Functions | 1 |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 50ns |
| Propagation Delay (tpd) | 60ns |
| 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 |
| Trigger Type | NEGATIVE EDGE |
| fmax-Min | 16MHz |
| ## CD54HCT4020F3A Alternates Showing results | Image |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Non-compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD54HCT4020F3A:
suggested
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suggested
Frequently Asked Questions
How many counter stages does the CD54HCT4020F3A have?
The CD54HCT4020F3A is a 14-stage binary counter, with outputs available from 12 of those stages. This allows designers to tap divide-by-2 through divide-by-16384 outputs depending on the application's required frequency division ratio.
What makes the HCT logic family different from standard CMOS?
The HCT (High-speed CMOS with TTL-compatible inputs) logic family accepts TTL-level input thresholds (VIH = 2.0V, VIL = 0.8V) while delivering full CMOS output swings and low quiescent current, enabling direct replacement of TTL logic in mixed-technology designs without level-shifting circuitry.
What temperature range does the CD54HCT4020F3A support?
The CD54HCT4020F3A is rated for -55°C to 125°C operation, covering the full military temperature range. This wide rating makes it suitable for avionics, military electronics, and industrial automation systems exposed to extreme thermal environments.
What package does the CD54HCT4020F3A use?
The CD54HCT4020F3A is housed in a 16-Pin CDIP (Ceramic Dual-In-Line Package), providing hermetic sealing for superior moisture and contamination resistance. The ceramic construction ensures long-term reliability in mission-critical applications where plastic packages are not acceptable.
Is the CD54HCT4020F3A RoHS compliant?
The CD54HCT4020F3A has a Pbfree Code of Yes and JESD-609 Code e0, confirming it is manufactured with lead-free materials. However, note that its REACH Compliance Code is listed as Not Compliant, so users should verify specific REACH SVHC requirements for their application.
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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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