CD54HC4040F Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CD54HC4040F is a high-speed CMOS 12-stage binary ripple counter in 16-pin ceramic DIP package with 20 MHz maximum frequency at 50 pF load and -55°C to 125°C operating range. Compatible with HC/UH CMOS logic family. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD54HC4040F 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-stage binary ripple counter providing 4096 count states with up-count direction
- 20 MHz maximum operating frequency with 50 pF load capacitance in HC CMOS logic family
- Wide -55°C to 125°C military-grade temperature range in hermetic ceramic 16-CDIP package
Applications
The CD54HC4040F 12-stage binary counter serves as a frequency divider, clock prescaler, and event counter in timing circuits, signal generators, and digital control systems. Its 20 MHz maximum frequency and ceramic CDIP packaging make it suitable for military and aerospace applications requiring operation across -55°C to 125°C ambient conditions. The HC CMOS logic family compatibility allows direct interfacing with other 74HC series ICs in 3 V to 5 V digital systems.
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 |
| 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 CD54HC4040F:
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, CDIP16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 12-Bit, Up Direction, CMOS, CDIP16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 7-Bit, Up Direction, CMOS, CDIP14
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, CDIP16
Frequently Asked Questions
What is the maximum counting frequency of the CD54HC4040F and how many stages does it provide?
The CD54HC4040F operates at a maximum frequency of 20 MHz with 50 pF load capacitance, providing 12 binary counter stages that divide the input clock by up to 4096. This makes it useful as a programmable clock divider or frequency prescaler in timing circuits requiring division ratios from 2 to 4096.
Why is the CD54HC4040F selected for military and aerospace digital timing designs over commercial grade parts?
The CD54HC4040F is rated for -55°C to 125°C operating temperature in a hermetic ceramic 16-CDIP package, meeting MIL-spec temperature requirements for military electronics. The ceramic package provides superior moisture and vibration resistance compared to plastic packages, ensuring reliable 20 MHz counter operation in aircraft avionics, satellite systems, and defense equipment exposed to harsh environments.
How does the CD54HC4040F fit into a 74HC logic signal chain for frequency division?
The CD54HC4040F belongs to the HC/UH CMOS logic family and is fully compatible with 74HC series inputs and outputs operating from 2 V to 6 V supply rails. Its 12 outputs represent binary divisions of the input clock by 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, and 4096, enabling flexible frequency division without additional decoding logic.
What load capacitance is the CD54HC4040F's frequency specification based on and how does it affect system design?
The 20 MHz maximum frequency specification is based on a 50 pF load capacitance at each output pin. When driving higher capacitance loads such as long PCB traces or multiple HC inputs, the maximum frequency decreases and propagation delay increases, so designers should minimize trace lengths and use buffering stages when the counter outputs drive more than 2 to 3 standard HC inputs.
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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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