CD74HC4040ME4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HC4040ME4 is a high-speed CMOS 12-stage binary ripple counter operating up to 20 MHz from a 2V to 6V supply in a 16-pin SOIC package. It counts upward on falling clock edges with a master reset input for synchronous clearing of all stages. Available from stock worldwide for frequency division, timing, and sequencing applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC4040ME4 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 with all stage outputs accessible provides frequency division ratios of 2 through 4096 in a single 16-pin SOIC package
- Up to 20 MHz maximum counting frequency with CMOS HC family operating from 2V to 6V, enabling versatile clock division and timing circuit design across 3.3V and 5V systems
- Active-high master reset input synchronously clears all 12 stages simultaneously, simplifying initialization and deterministic startup behavior in timing and sequencing circuits
Applications
The CD74HC4040ME4 is widely used as a frequency divider in clock generation circuits, providing binary sub-multiples of a reference clock for microcontroller timing, serial communication baud rate generation, and real-time clock systems. Its 12 stage outputs enable cascaded division from divide-by-2 through divide-by-4096, making it practical for generating multiple clock domains from a single oscillator. It also serves in event counting, time-base generation for displays, and sequencer circuits in embedded systems and industrial electronics.
Specifications
| YTEOL | 0 |
| Count Direction | UP |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| 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 | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | NEGATIVE EDGE |
| fmax-Min | 24MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC4040ME4:
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, PDSO16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, PDSO16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, PDSO16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, PDSO16
Frequently Asked Questions
How many stages does the CD74HC4040ME4 have and what division ratios can it produce?
The CD74HC4040ME4 is a 12-stage binary ripple counter with all 12 stage outputs brought out to pins. Each stage divides the input frequency by 2, so the available division ratios are 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, and 4096. Multiple outputs can be monitored simultaneously for different frequency sub-multiples.
What is the maximum clock frequency for the CD74HC4040ME4?
The CD74HC4040ME4 supports a maximum input clock frequency of 20 MHz at nominal supply voltage. This allows the device to divide clock signals up to 20 MHz, generating output frequencies as low as approximately 4.88 kHz at the Q12 output (20 MHz divided by 4096). Actual maximum frequency varies with supply voltage and temperature.
What package does the CD74HC4040ME4 use?
The CD74HC4040ME4 comes in a 16-pin SOIC (Small Outline Integrated Circuit, JESD-30 code R-PDSO-G16) surface-mount package. The ME4 suffix indicates SOIC packaging with a tape and reel option and RoHS-compliant lead-free construction. This package is compatible with standard SMT assembly processes on 1.27mm pitch PCB footprints.
How does the reset function work on the CD74HC4040ME4?
The CD74HC4040ME4 has an active-high master reset (MR) input that, when asserted high, clears all 12 counter stages to zero asynchronously. Normal counting resumes as soon as MR returns low. The reset function is independent of the clock and allows immediate initialization of the counter at any point, which is essential for deterministic startup behavior in timing applications.
On which clock edge does the CD74HC4040ME4 count?
The CD74HC4040ME4 increments its count on the falling edge (high-to-low transition) of the clock input. This is the standard behavior for 74HC4040-family counters. When cascading multiple counters, the Q12 output of the first device connects directly to the clock input of the next device, since Q12 transitions on each falling clock edge of the MSB output.
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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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