Description
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The HEF4081BDB is a legacy, military- or industrial-grade Quadruple 2-input AND gate integrated circuit (IC) originally manufactured by Philips Semiconductors (whose logic division transitioned to NXP and later Nexperia) it’s an early ceramic dual-in-line (CDIP) integrated circuit.
Part Number Breakdown
- HEF: Philips/NXP/Nexperia standard CMOS 4000-series family prefix.
- 4081: The function identifier for a Quad 2-Input AND Gate (contains 4 independent AND gates).
- B: Buffered outputs (provides higher noise immunity and faster, more reliable transition shapes).
Key Technical Specifications
-
The electrical parameters adhere closely to the standard HEF4081B family specification:
Parameter Specification Logic Function Positive logic AND (Y = A ⋅ B) Supply Voltage (\(V_{DD}\)) 3.0 V to 15.0 V (Highly versatile, accommodates industrial systems) Operating Temperature -40 °C to +125 °C (Extended automotive/military range) Propagation Delay ≈ 110 ns (at \(V_{DD} = 5\text{V}\), typical) Input/Output Protection Internal clamp diodes protect against static discharge (ESD)
The trailing suffixes break down the specific packaging type:
- “B”: Indicates it belongs to the buffered 4000-series CMOS logic family.
- “D”: Denotes a 16-pin dual-in-line (DIL).
- “B” : Ceramic package (Cerdip / SOT73 designator) operating temperature range: -40 °C to +125 °C
Historical Context
During the 1970s and early 1980s, Philips produced their CMOS logic line under the HEF prefix (High-threshold / High-voltage CMOS), competing with RCA’s CD4000 series. The ceramic “BDB” variants were military-grade or higher spec. components designed for rugged environments, featuring hermetic ceramic packages with gold-plated or tin leads rather than standard commercial plastic molding.
Specifications
| AND | ||
| 4 Gate | ||
| 4000B | ||
| 8 Input | ||
| CDIP-14 | ||
| 4 Output | ||
| 3.4 mA | ||
| – 3.4 mA | ||
| 20 ns | ||
| 3 V | ||
| 15 V | ||
| – 40 C | ||
| + 125 C | ||
| Through Hole | ||
| Tube | ||
| Cut Tube | ||
| Antistatic tube | ||
| Brand: | Philips | |
| Logic Type: | 2-Input AND | |
| Product: | Single-Function Gates | |
| Product Type: | Logic Gates |
Now obsolete for datasheet search…CD4081BDB
Or go directly to…
https://www.digchip.com/datasheets/parts/datasheet/364/HEF4081BP-pdf.php
PLEASE NOTE!
These parts came to us as part of a lot of surplus stock from a large ‘milspec’ type Co. and have been kept in storage for some time, we have therefore classified them as ‘new other’, they are however pristine, and, as with all our products they come with a full guarantee.
If you have similar items to this, or indeed any electronic components that are surplus to requirements please contact us with details.
