CD4518BEE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD4518BEE4 is a dual BCD (decade) up-counter IC from Texas Instruments, part of the 4000-series CMOS logic family. It operates over a wide supply voltage range of 3 V to 18 V with Schmitt trigger clock inputs and gated clock control. Available in a 16-pin PDIP package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD4518BEE4 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 independent BCD decade up-counters allow cascaded counting or simultaneous independent count operations
- Wide supply voltage range of 3 V to 18 V provides compatibility with diverse logic systems from low-power CMOS to legacy TTL-level designs
- Schmitt trigger clock inputs with gated clock control improve noise immunity and enable flexible clocking strategies
- 4000-series CMOS family ensures low static power consumption, critical for battery-operated and always-on counting circuits
Applications
The CD4518BEE4 is commonly used in digital frequency dividers, event counters, and timing circuits in industrial control and consumer electronics. It is well-suited for display driver front-ends, where BCD outputs directly interface with 7-segment decoder drivers for numeric readouts. The device is also applied in clock generators and sequencing circuits in embedded systems that require simple, reliable decade counting across a wide voltage range.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | GATED CLOCK; SCHMITT TRIGGER ON CLOCK INPUT |
| Count Direction | UP |
| Family | 4000/14000/40000 |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Load/Preset Input | NO |
| Logic IC Type | DECADE COUNTER |
| Max Frequency@Nom-Sup | 1500000Hz |
| Max I(ol) | 0.0015A |
| Mode of Operation | SYNCHRONOUS |
| Number of Bits | 4 |
| Number of Functions | 2 |
| 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) | 0.03mA |
| Prop. Delay@Nom-Sup | 230ns |
| Propagation Delay (tpd) | 560ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 18V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 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 | POSITIVE EDGE |
| fmax-Min | 4MHz |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD4518BEE4:
Decade Counter, 4000/14000/40000 Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, CDIP16
Decade Counter, 4000/14000/40000 Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, CDIP16
Frequently Asked Questions
What is the supply voltage range of the CD4518BEE4?
The CD4518BEE4 operates over a wide supply voltage range of 3 V to 18 V, making it compatible with both low-voltage CMOS systems and higher-voltage legacy TTL-level designs. This flexibility simplifies integration into mixed-voltage environments common in industrial and consumer electronics.
Does the CD4518BEE4 have Schmitt trigger inputs on the clock pins?
Yes, the CD4518BEE4 features Schmitt trigger inputs on its clock pins, as noted in the Additional Feature specification. This provides hysteresis that rejects slow-rising or noisy clock edges, improving counting reliability in environments with electrical noise or long interconnects.
What package does the CD4518BEE4 use and how many pins does it have?
The CD4518BEE4 is housed in a 16-pin PDIP (Plastic Dual In-line Package), designated JESD-30 code R-PDIP-T16. This through-hole package is easy to prototype with on breadboards and is widely available, making it a popular choice for educational and hobbyist projects as well as production designs.
What counting mode does the CD4518BEE4 support and can it be cascaded?
The CD4518BEE4 supports BCD (Binary Coded Decimal) up-counting only, incrementing from 0 to 9 and then resetting. The device contains two independent decade counters, which can be cascaded by connecting the carry output of the first counter to the clock input of the second, enabling multi-decade counting for larger count ranges.
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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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