SN74HC378N3 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
SN74HC378N3 is a 6-bit D flip-flop logic IC from Texas Instruments in the HC/UH family. It operates at up to 20 MHz with 50 pF load capacitance and 5.2 mA output current in a 16-pin DIP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HC378N3 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 6-bit D flip-flop with common clock enable for synchronous 6-bit data latching in a single 16-pin DIP package
- HC/UH family device operating at up to 20 MHz maximum frequency for reliable clocked logic applications
- 50 pF load capacitance with 5.2 mA output low current enabling efficient signal driving in TTL-compatible designs
- Through-hole 16-pin DIP package (0.300 inch) ideal for prototyping, breadboarding, and legacy PCB designs
Applications
The SN74HC378N3 is commonly used in data registers, parallel-to-serial converters, and synchronous data latching circuits in digital logic designs. Its 6-bit flip-flop structure with common clock enable makes it effective for data bus buffering and temporary storage in microprocessor peripheral interfaces. The through-hole DIP package makes it a popular choice for educational electronics, prototyping boards, and legacy system repairs.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T16 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.0052A |
| Number of Bits | 6 |
| Number of Functions | 1 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Prop. Delay@Nom-Sup | 40ns |
| Propagation Delay (tpd) | 200ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 23MHz |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74HC378N3:
D Flip-Flop, HC/UH Series, 1-Func, Positive Edge Triggered, 6-Bit, True Output, CMOS, PDIP16
D Flip-Flop, HC/UH Series, 1-Func, Positive Edge Triggered, 6-Bit, True Output, CMOS, PDSO16
D Flip-Flop, HC/UH Series, 1-Func, Positive Edge Triggered, 4-Bit, Complementary Output, CMOS, PDIP16
Frequently Asked Questions
What is the SN74HC378N3 and what logic function does it implement?
The SN74HC378N3 is a 6-bit D-type flip-flop IC from Texas Instruments in the HC/UH logic family. It contains 6 D flip-flops with a common clock enable input, allowing synchronous latching of 6-bit data on the rising clock edge. This makes it ideal for data registers, bus holding, and storage applications in digital systems.
What are the key electrical specifications of the SN74HC378N3?
The SN74HC378N3 supports a maximum clock frequency of 20 MHz, a load capacitance of 50 pF, and a maximum output low current (I_OL) of 5.2 mA. It is part of the HC/UH family, which provides CMOS-level inputs and TTL-compatible outputs, operating over a standard logic supply voltage range suitable for 5V digital systems.
What package does the SN74HC378N3 come in?
The SN74HC378N3 is packaged in a 16-pin DIP (Dual In-Line Package) with 0.300 inch row spacing, identified by JESD-30 code R-PDIP-T16. This through-hole package is suitable for breadboard prototyping, educational projects, and PCB designs that use through-hole assembly, making it easy to socket and replace in development and maintenance scenarios.
What are typical applications for the SN74HC378N3?
Typical applications include 6-bit data registers for microprocessor I/O ports, address latches in memory interfaces, and parallel data buffers in communication circuits. The clock enable input allows multiple SN74HC378N3 devices to share a clock bus while independently controlling which registers capture data, useful in multiplexed bus designs and synchronous state machine implementations.
Is the SN74HC378N3 RoHS compliant and available for new designs?
The SN74HC378N3 has a Pb-free code of No, indicating it is not a lead-free part per JESD-609 Code, and its YTEOL is listed as 0. For new RoHS-compliant designs, engineers should consider lead-free variants in the SN74HC378 family or consult Texas Instruments for recommended alternatives that meet current environmental and lifecycle requirements.
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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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