CD74HC4040E Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
High-speed CMOS 12-stage binary ripple counter in HC family, operating up to 20 MHz at a 50 pF load with supply voltage from 2 V to 6 V. Provides 12 buffered output taps for frequency division and sequencing in a standard 16-pin DIP package. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4040E Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1806(MOQ 1)
- 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 CD74HC4040E?
- 12-stage binary ripple counter delivers up to 4096 frequency-division stages from a single IC, reducing external logic
- Operates at up to 20 MHz clock frequency with 50 pF load, covering audio, timer, and low-speed digital applications
- HC CMOS family supports 2 V to 6 V supply range, enabling direct interfacing with both 3.3 V and 5 V logic systems
What is CD74HC4040E used for?
The CD74HC4040E is a versatile binary ripple counter used in frequency dividers, clock generation circuits, and event-counting applications in embedded systems and test equipment. Its 12 output taps allow designers to derive sub-frequencies from a master clock—for example, dividing a 20 MHz oscillator down to 4.88 kHz using Q12—without additional logic gates. The through-hole DIP-16 package makes it ideal for prototyping, educational kits, and legacy board repairs.
What are the specifications of CD74HC4040E?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Count Direction | UP |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| 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 | PLASTIC/EPOXY |
| 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 | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Trigger Type | NEGATIVE EDGE |
| fmax-Min | 24MHz |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Mexico |
Where can I find the CD74HC4040E datasheet?
CD74HC4040E Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC4040E?
Compatible alternatives and drop-in replacements for CD74HC4040E:
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, PDIP16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 7-Bit, Up Direction, CMOS, PDIP14
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, PDIP16
Frequently Asked Questions
How many frequency-division stages does the CD74HC4040E provide, and what is its maximum clock input frequency?
The CD74HC4040E is a 12-stage binary counter, providing division ratios of 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, and 4096 from a single chip. Its maximum clock input frequency is 20 MHz at a 50 pF load and a 5 V supply, making it suitable for audio-frequency division and low-speed digital timing applications.
What supply voltage range does the CD74HC4040E support, and can it interface directly with 3.3 V microcontrollers?
The device operates from 2 V to 6 V, meaning it can run at 3.3 V for direct interfacing with modern 32-bit microcontrollers or at 5 V for legacy TTL-compatible systems. At 3.3 V the maximum frequency drops slightly, but the full 12-stage count sequence remains functional for clock division below 10 MHz.
For a timer design dividing a 10 MHz crystal oscillator down to a 1 Hz output, how many CD74HC4040E stages are required?
Dividing 10 MHz to 1 Hz requires a total division ratio of 10 million, which needs approximately 24 binary stages. Since each CD74HC4040E provides 12 stages (maximum 4096 division), two devices cascaded in series deliver 24 stages for a ratio of up to 16,777,216, comfortably achieving the 10,000,000:1 division needed for a 1 Hz output.
What is the pin count and package type of the CD74HC4040E, and why is that package preferred for prototyping?
The CD74HC4040E is housed in a 16-pin PDIP (Plastic Dual In-Line Package) with a standard 0.1-inch pin pitch. The through-hole DIP-16 footprint plugs directly into solderless breadboards and standard IC sockets, making it the preferred package for rapid prototyping, educational labs, and small production runs where surface-mount reflow is not available.
When should an engineer choose the CD74HC4040E over a programmable timer IC such as the NE555 for a clock divider application?
When the design requires simultaneous access to multiple sub-harmonics of a single clock—for example, 1/2, 1/4, 1/8, and 1/256 simultaneously—the CD74HC4040E's 12 independent output taps eliminate the need for multiple NE555 timer stages and resistor-capacitor networks. This reduces component count from more than 10 discrete parts to a single 16-pin IC, saving at least 30% of PCB area in a compact data-logger design.
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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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| 14+ | $0.3225 | $4.52 |
| 63+ | $0.2580 | $16.25 |
| 234+ | $0.1806 | $42.26 |
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