Description
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The HEF4017BDB is an early ceramic dual-in-line (CDIP) integrated circuit from Philips. It’s a high-speed 5-stage Johnson decade counter integrated circuit built using Philips/NXP’s LOCMOS (CMOS) technology.
It takes a clock signal input and sequentially drives 10 individual outputs HIGH one at a time. It is widely used in electronic timing, sequential controllers, LED chasers, and frequency dividers.
Key Technical Specifications
- Supply Voltage Range: 3V to 15V (highly versatile for both low-voltage logic and standard 12V systems).
- Clock Frequency: Typically up to 6 MHz (at \(V_{DD} = 15V\)).
- Package Suffixes: The “DB” or “D” suffix historically denotes a Ceramic Dual In-line Package (CDIP-16) or standard DIP-16 package variants, depending on the manufacturing generation from Philips/NXP Semiconductors.
- Logic Family: HEF4000B (compatible with standard CD4017 / HCF4017 chips).
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.
Technical Specifications Summary
| Parameter | Specifications |
|---|---|
| Supply Voltage Range (\(V_{DD}\)) | 3.0 V to 15.0 V |
| Operating Temperature Range | -40 °C to +125 °C (Automotive grade compliant) |
| Clock Frequency (\(f_{max}\)) | Up to 6 MHz (at higher \(V_{DD}\)) |
| Outputs | 10 decoded active-HIGH, 1 active-LOW carry (Q₅₋₉) |
| Package Types | SO16, TSSOP16, DIP16 |
Key Features
- Automatic Code Correction: An internal circuit ensures that if an illegal state occurs, the counter automatically returns to the correct sequence within 11 clock pulses.
- Schmitt-Trigger Clock Inputs: Highly tolerant of slow clock rise and fall times.
Now obsolete for datasheet search…CD4017BDB
Or go directly to…
https://www.mouser.lt/datasheet/2/916/HEF4017B-2937910.pdf?srsltid=AfmBOooWbDJy6u2kBmnRPNmRXwUCqjtDx-znwX6OpQ7ly2mSJU6g3oEo
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.
