CD4076BF3A Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CD4076BF3A is a CMOS 4-bit D-type register with hold mode and dual output enable in a 16-pin ceramic DIP. Supports clock frequencies up to 3 MHz with 50 pF load and wide supply voltage range. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD4076BF3A 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
What are the key features of CD4076BF3A?
- 4-bit D flip-flop register with hold mode and dual tri-state output enable pins allowing multiple registers to share a common bus without contention
- CMOS 4000-series family with clock operation up to 3 MHz at 50 pF load and low quiescent current for battery-backed or low-power storage designs
- 16-pin ceramic DIP package rated for industrial temperature extremes, providing hermetic durability for legacy instrument and industrial controller replacement
What is CD4076BF3A used for?
The CD4076BF3A is used in data bus interfacing, parallel register banks, and control word latching in industrial PLCs and legacy instrument designs requiring 4000-series CMOS logic. The dual output enable allows designers to build wired-OR bus structures where multiple 4-bit registers share output lines, reading back sequentially. Its hold mode latches the current data state independent of the clock, useful in scan-chain testing and pipeline stage isolation within mixed-logic boards.
What are the specifications of CD4076BF3A?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | WITH HOLD MODE; WITH DUAL OUTPUT ENABLE |
| Family | 4000/14000/40000 |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 3000000Hz |
| Max I(ol) | 0.0024A |
| Number of Bits | 4 |
| Number of Functions | 4 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 3mA |
| Prop. Delay@Nom-Sup | 250ns |
| Propagation Delay (tpd) | 600ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| 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 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 8MHz |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the CD4076BF3A datasheet?
CD4076BF3A Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD4076BF3A?
Compatible alternatives and drop-in replacements for CD4076BF3A:
D Flip-Flop, 4000/14000/40000 Series, 4-Func, Positive Edge Triggered, 4-Bit, True Output, CMOS, CDIP16
Frequently Asked Questions
What clock frequency does the CD4076BF3A support, and how does the 50 pF load specification affect timing margins?
The CD4076BF3A is rated for clock frequencies up to 3 MHz when driving 50 pF loads. Exceeding this capacitance or frequency reduces noise margins and increases propagation delay, so designers should keep PCB trace capacitance below 50 pF per output and derate the clock to 1 MHz or lower when operating across the full -55°C to +125°C range.
How does the hold mode of the CD4076BF3A work and when is it useful in bus designs?
When hold mode is activated, the register retains its current 4-bit state regardless of further clock transitions, effectively freezing the output. This is useful in multiplexed bus architectures where data from one 4-bit source must remain stable on shared lines while other bus masters drive new values to different registers, preventing glitches during bus handoff.
Can the CD4076BF3A replace modern 74HC175 registers in an existing PCB design requiring a ceramic package?
The CD4076BF3A is a 4000-series CMOS part with a maximum output sink current of 2.4 mA, which is lower than the 74HC175's typical 25 mA. Direct substitution is possible only for light fan-out loads of 1 to 2 LS-TTL inputs. For heavier loads, adding a buffer such as 74HC244 between the CD4076BF3A output and the bus preserves drive capability while retaining the ceramic DIP package advantage for high-reliability assemblies.
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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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