CD4503BEG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD4503BEG4 is a CMOS hex non-inverting buffer from Texas Instruments with three-state outputs and two independent output-enable control inputs, packaged in a 16-pin through-hole DIP. It operates from 3V to 18V supply voltage and is compatible with both CMOS and TTL logic families. Ideal for bus expansion and signal level conversion in low-power digital logic designs.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD4503BEG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2156(MOQ 1725)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Hex (6-channel) non-inverting three-state buffer with two independent output-enable control groups
- Wide 3V to 18V supply voltage range for compatibility with CMOS, LVTTL, and TTL systems
- CMOS construction providing ultra-low quiescent current for battery-powered applications
- TTL-compatible output levels for interfacing CD4000 family CMOS with 5V TTL systems
- 16-pin DIP through-hole package for prototyping and legacy PCB designs
- High noise immunity with CMOS logic threshold levels at 50% of VDD
Applications
The CD4503BEG4 is used in bus buffering, output port expansion, and voltage level translation between CD4000-series CMOS logic and TTL-compatible systems in industrial controllers, consumer electronics, and embedded designs. It also serves in signal isolation, fan-out expansion for driving multiple loads, and interface circuits between microcontrollers and legacy TTL peripheral devices operating at different supply voltages.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD4503BEG4:
suggested
Bus Driver, 4000/14000/40000 Series, 6-Func, 4-Bit, True Output, CMOS, PDIP16
Bus Driver, 4000/14000/40000 Series, 6-Func, 4-Bit, True Output, CMOS, PDIP16
Frequently Asked Questions
What supply voltage does the CD4503BEG4 support?
The CD4503BEG4 operates from a supply voltage of 3V to 18V, which is characteristic of the CD4000 CMOS logic family. This wide supply range makes it usable in battery-powered 3V systems as well as legacy 5V and 12V logic designs, providing high flexibility in mixed-voltage applications.
How many output-enable inputs does the CD4503BEG4 have?
The CD4503BEG4 has two independent output-enable inputs (E1 and E2), each controlling three of the six buffer channels. This allows the device to be used as two independent groups of three three-state buffers, providing more flexible bus control than a single shared enable.
Is the CD4503BEG4 compatible with TTL logic levels?
When operating from a 5V supply, the CD4503BEG4 outputs are compatible with standard TTL input threshold levels, allowing it to interface with 74-series TTL devices. Its CMOS inputs also accept TTL-level inputs, making it a useful bridge between CD4000-series CMOS and TTL logic families.
What package does the CD4503BEG4 come in?
The CD4503BEG4 is available in a 16-pin dual-in-line (DIP) through-hole package, which is suitable for breadboard prototyping and through-hole PCB assembly. This classic package format is common in legacy industrial and consumer electronic 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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1725+ | $0.2156 | $371.94 |
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