CD74HC390M Texas Instruments Integrated Circuit (Other) In Stock
The CD74HC390M is a high-speed CMOS dual decade ripple counter with divide-by-2 and divide-by-5 functions in a 16-pin SOIC package. It counts up at frequencies up to 20 MHz with a 50 pF load capacitance for reliable digital counting. From $0.60 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC390M 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
- Dual decade ripple counter with independent divide-by-2 and divide-by-5 sections enables flexible BCD or decade counting configurations
- Maximum counting frequency of 20 MHz at nominal supply supports fast digital frequency division and event counting applications
- High-speed CMOS HC/UH family logic with 50 pF load capacitance ensures compatibility with standard CMOS and TTL logic interfaces
- 16-pin SOIC small outline package provides a compact surface-mount footprint for modern PCB designs
Applications
The CD74HC390M is commonly used in frequency division, clock generation, and digital counting circuits in industrial control systems, consumer electronics, and communication equipment. Its dual decade counter structure allows cascading to form multi-digit BCD counters for display drivers and timing reference generation. The device also finds application in pulse counting, frequency measurement, and digital clock divider circuits where precise decade-based frequency scaling is required.
Specifications
| YTEOL | 0 |
| Additional Feature | DIVIDE BY 2 AND DIVIDE BY 5 FUNCTIONS |
| 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 | DECADE COUNTER |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.0052A |
| Mode of Operation | ASYNCHRONOUS |
| Number of Bits | 4 |
| Number of Functions | 2 |
| 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 | 52ns |
| Propagation Delay (tpd) | 550ns |
| 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 (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | NEGATIVE EDGE |
| fmax-Min | 24MHz |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC390M:
Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16
Decade Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16
Frequently Asked Questions
What is the maximum counting frequency of the CD74HC390M?
The CD74HC390M supports a maximum counting frequency of 20 MHz at nominal supply voltage with a 50 pF load capacitance, making it suitable for high-speed clock division, frequency prescaling, and event counting in digital logic systems.
How are the divide-by-2 and divide-by-5 sections used in the CD74HC390M?
Each decade counter in the CD74HC390M consists of a separate divide-by-2 section and a divide-by-5 section. By connecting the divide-by-2 output to the divide-by-5 clock input, users form a standard BCD decade counter. Alternatively, each section can be used independently for other frequency division ratios.
What logic family does the CD74HC390M belong to?
The CD74HC390M belongs to the HC/UH high-speed CMOS logic family, which offers low power consumption, high noise immunity, and output drive capability compatible with both CMOS and TTL logic levels, making it broadly interoperable with other standard digital ICs.
What package does the CD74HC390M come in?
The CD74HC390M is housed in a 16-pin Small Outline Integrated Circuit (SOIC) surface-mount package (R-PDSO-G16), offering a compact PCB footprint well suited to automated PCB assembly and space-constrained digital logic board designs.
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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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