CD4093BF3A Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The CD4093BF3A is a quad 2-input NAND Schmitt trigger logic IC from Texas Instruments in the 4000-series CMOS family, housed in a 14-pin ceramic DIP package rated for -55°C to +125°C operation. It features hysteresis on all 4 inputs for superior noise immunity and a 50 pF load capacitance specification. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- CD4093BF3A 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
- Quad 2-input NAND gates with Schmitt-trigger inputs providing built-in hysteresis for reliable switching on slow or noisy input signals
- Wide operating temperature range of -55°C to +125°C in a hermetic ceramic 14-pin DIP package suitable for military and harsh-environment use
- CMOS 4000-series family compatible with supply voltages from 3 V to 18 V offering broad legacy system and mixed-voltage design support
Applications
The CD4093BF3A is well-suited for oscillator circuits, waveform shaping, and signal conditioning in industrial and military electronics where slow-transitioning or noisy digital signals must be cleaned up before downstream logic processing. Its Schmitt-trigger inputs and wide 3 V to 18 V supply range make it a versatile choice for switch debouncing, crystal oscillator start-up circuits, and level-shifting interfaces in legacy CMOS systems operating across extended temperature environments.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | 4000/14000/40000 |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | NAND GATE |
| Max I(ol) | 0.0015A |
| Number of Functions | 4 |
| Number of Inputs | 2 |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.6mA |
| Prop. Delay@Nom-Sup | 380ns |
| Propagation Delay (tpd) | 380ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | YES |
| Screening Level | 38535Q/M;38534H;883B |
| 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 | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD4093BF3A:
Frequently Asked Questions
How does Schmitt-trigger hysteresis in the CD4093BF3A help in noisy industrial signal environments?
Each of the 4 NAND gates in the CD4093BF3A includes Schmitt-trigger inputs with built-in hysteresis, meaning the positive-going and negative-going input thresholds differ by a guaranteed voltage margin. This prevents multiple output transitions caused by slow or bouncing input signals, eliminating the need for external RC filters on switch inputs or sensor lines in industrial control environments operating up to 125°C.
What supply voltage range does the CD4093BF3A support and why does this matter for legacy system designs?
The CD4093BF3A operates from 3 V to 18 V supply, covering both 5 V TTL-compatible and 12 V to 15 V legacy CMOS system voltages used in older industrial and military equipment. This broad range allows it to interface directly with a wide variety of sensors, relays, and logic families without level-shifting circuitry, simplifying repair and replacement in long-lifecycle systems.
What makes the ceramic DIP package of the CD4093BF3A suitable for military and space-adjacent applications?
The 14-pin ceramic DIP (CDIP) package of the CD4093BF3A provides a hermetically sealed cavity, protecting the die from moisture and contaminants across its full -55°C to +125°C operating range. Ceramic packaging is standard in MIL-SPEC and harsh-environment procurements because it eliminates the moisture absorption that degrades plastic-encapsulated parts in high-humidity or altitude environments, making the CD4093BF3A compliant with military screening requirements.
How can the CD4093BF3A be configured as an RC oscillator for clock generation in embedded designs?
A single 2-input NAND gate section of the CD4093BF3A can be configured as an RC relaxation oscillator by connecting an RC feedback network between the output and input, with the remaining gates in unused or buffer roles. The Schmitt-trigger thresholds define the charging and discharging voltage levels, producing a stable oscillation frequency set by the RC time constant; for example, a 10 kΩ resistor and 10 nF capacitor yields approximately 4 kHz to 8 kHz depending on supply voltage.
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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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