CD4077BE Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
Texas Instruments CD4077BE is a CMOS quad 2-input XNOR gate in DIP-14 package, with 4 independent gates and 6.8 mA output drive into 50 pF loads. Operates over 3 V to 15 V supply range. Available from stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- CD4077BE Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3840(MOQ 1)
- 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 XNOR (Exclusive-NOR) gate providing 4 independent bit-comparison functions in a single DIP-14 package
- Wide supply voltage range of 3 V to 15 V compatible with both standard 5V TTL systems and 12 V CMOS logic environments
- 6.8 mA output sink current at 50 pF load for direct fan-out to multiple CMOS inputs without external buffering
Applications
The CD4077BE is used in digital comparison and error-detection circuits where two-bit equality checking is required, such as parity checkers, digital lock combinators, and binary comparators in industrial control PLCs. Its XNOR truth table output is high when both inputs match, making it ideal for building multi-bit magnitude comparators using cascaded stages. The wide 3 V to 15 V operating range and DIP-14 package support legacy system repairs and breadboard prototyping in laboratory and educational settings.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | 4000/14000/40000 |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | XNOR GATE |
| Max I(ol) | 0.0068A |
| Number of Functions | 4 |
| Number of Inputs | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.005mA |
| Prop. Delay@Nom-Sup | 280ns |
| Propagation Delay (tpd) | 280ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| 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 | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD4077BE:
Frequently Asked Questions
How many XNOR functions does the CD4077BE integrate and what supply voltage range does it support?
The CD4077BE integrates 4 independent 2-input XNOR gates in a single DIP-14 package, operating from a 3 V to 15 V supply. All 4 gates share a common VDD and VSS, allowing simultaneous comparison of 4 bit-pairs in a nibble-wide digital comparator circuit without needing additional logic ICs.
For a 4-bit digital lock circuit, how can the CD4077BE's XNOR structure implement the comparison logic?
Each of the 4 XNOR gates can compare one bit of a 4-bit entered code against a stored reference bit. When all 4 pairs match, all 4 outputs go high and an AND gate connected to them generates the unlock signal. This approach requires only 1 CD4077BE plus 1 quad AND gate, achieving a complete 4-bit comparison in 2 ICs while drawing typically under 1 mA quiescent current from a 5 V supply.
What fan-out capability does the CD4077BE provide and how many CMOS inputs can each gate drive?
With a 6.8 mA output sink current at Vcc = 5 V and 50 pF load, each XNOR output can drive up to 10 standard 4000-series CMOS inputs, each presenting approximately 5 pF of input capacitance. This provides sufficient fan-out for typical combinational logic trees without inserting buffer stages between comparison and downstream logic elements.
When repairing a legacy 12 V industrial PLC that uses CD4000 series logic, why is the CD4077BE a suitable replacement for discrete XOR plus inverter stages?
The CD4077BE is part of the CD4000 family rated for 15 V operation, matching the 12 V rail used in older PLCs. Replacing separate CD4070 XOR gates followed by CD4069 inverter buffers with the CD4077BE consolidates the XNOR function into a single IC, reducing component count by at least 2 packages and saving approximately 300 mW of standby power across a 16-bit comparator bank.
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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 |
|---|---|---|
| 1+ | $1.1625 | $1.16 |
| 17+ | $0.8000 | $13.60 |
| 23+ | $0.6975 | $16.04 |
| 25+ | $0.4800 | $12.00 |
| 100+ | $0.4440 | $44.40 |
| 250+ | $0.3840 | $96.00 |
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