CD54HC4040F3A Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CD54HC4040F3A is a single 12-bit binary ripple-carry up counter in the HC/UH family, operating up to 20 MHz with a 50 pF load capacitance in a 16-pin ceramic DIP package. It is suited for frequency division and event counting applications. Available worldwide with Pb-free compliance.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD54HC4040F3A Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 12-bit binary up counter providing 4096 count states for frequency division and event counting circuits
- Maximum operating frequency of 20 MHz at nominal supply enabling high-speed digital counting applications
- HC/UH CMOS family providing wide supply voltage range and high noise immunity for reliable operation
- 16-pin ceramic DIP package offering superior temperature stability for military and high-reliability environments
Applications
The CD54HC4040F3A 12-bit binary counter is used in frequency divider circuits, clock prescalers, and digital event counting systems in embedded and industrial designs. Its 20 MHz maximum frequency makes it suitable for dividing high-speed clock signals down to sub-megahertz rates in timing and synchronization circuits. The ceramic DIP package provides enhanced reliability for military, aerospace, and high-temperature industrial applications requiring long service life.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Count Direction | UP |
| Family | HC/UH |
| 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 | 20000000Hz |
| Max I(ol) | 0.0052A |
| Mode of Operation | ASYNCHRONOUS |
| Number of Bits | 12 |
| 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 | 30ns |
| Propagation Delay (tpd) | 210ns |
| Qualification Status | Not Qualified |
| Screening Level | 38535Q/M;38534H;883B |
| 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 | 24MHz |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD54HC4040F3A:
Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 12-Bit, Up Direction, CMOS, CDIP16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, CDIP16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, CDIP16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 7-Bit, Up Direction, CMOS, CDIP14
Frequently Asked Questions
For a frequency divider design, what output frequencies can the CD54HC4040F3A generate from a 20 MHz input clock?
The CD54HC4040F3A provides 12 binary counter outputs, each dividing the input clock by a power of 2. From a 20 MHz input, the outputs provide frequencies from 10 MHz at bit 1 down to approximately 4.88 kHz at bit 12, enabling a wide range of divided clock frequencies in a single 16-pin IC without external logic.
In a high-reliability military application, why is the ceramic DIP package of the CD54HC4040F3A preferred over plastic packages?
The ceramic DIP package of the CD54HC4040F3A offers hermetic sealing that resists moisture and contaminants more effectively than plastic packages. Ceramic packages also withstand higher operating temperatures and provide better long-term reliability in military and aerospace environments where the device may be exposed to thermal cycling, vibration, and humidity extremes beyond the range of standard plastic ICs.
Can the CD54HC4040F3A operate with different supply voltages, and how does this affect maximum counting frequency?
The CD54HC4040F3A belongs to the HC family, which typically supports a supply voltage range of 2 V to 6 V. At higher supply voltages near 5 V to 6 V, the device achieves its maximum frequency of 20 MHz at 50 pF load capacitance, while at lower voltages the maximum frequency decreases, which designers must account for in timing-critical frequency divider circuits.
Does the CD54HC4040F3A support synchronous preset or clear functions for initialization in sequential logic designs?
The CD54HC4040F3A does not include a load/preset input for synchronous loading of initial values, as indicated in its specifications. It does support a master reset for asynchronous clearing of all 12 counter bits to zero, enabling deterministic initialization in sequential logic systems. Designers requiring synchronous preset capability would need to consider an alternative counter device.
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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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