SN54HC175J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SN54HC175J is a quad D flip-flop from Texas Instruments in the HC/UH logic family, offering 4 bits of clocked storage with a maximum clock frequency of 21 MHz and 50 pF load capacitance support in a rugged 16-pin ceramic DIP package. It is well suited for military and high-reliability digital register applications. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN54HC175J Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.9350(MOQ 1)
- 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 SN54HC175J?
- Quad D flip-flop with 4 independent clocked storage elements operating at up to 21 MHz for reliable register and pipeline designs
- HC/UH logic family with 50 pF load drive capability and low 5.2 mA output sink current, compatible with 5 V CMOS and TTL logic levels
- 16-pin ceramic DIP package providing military-grade temperature endurance and hermetic protection for mission-critical and high-reliability boards
What is SN54HC175J used for?
The SN54HC175J is used in military, aerospace, and high-reliability industrial digital systems where clocked 4-bit data storage is needed across wide temperature extremes. Its 21 MHz maximum clock frequency and HC-family logic levels make it compatible with legacy CMOS bus interfaces, pipeline registers, and state-machine designs. The ceramic DIP-16 package withstands harsh thermal cycling and is preferred in defense electronics requiring long operational lifetimes.
What are the specifications of SN54HC175J?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | HC/UH |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 21000000Hz |
| Max I(ol) | 0.0052A |
| Number of Bits | 4 |
| Number of Functions | 4 |
| Output Polarity | COMPLEMENTARY |
| 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) | 0.08mA |
| Prop. Delay@Nom-Sup | 45ns |
| Propagation Delay (tpd) | 255ns |
| 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 | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 25MHz |
| 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 SN54HC175J datasheet?
SN54HC175J Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN54HC175J?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum clock frequency of the SN54HC175J, and what clock speeds does it support in register pipelines?
The SN54HC175J supports a maximum clock frequency of 21 MHz at nominal supply voltage. This makes it suitable for register-transfer pipelines, serial-to-parallel converters, and state machines clocked at standard rates of 1 MHz to 16 MHz found in embedded control and legacy digital logic designs where CMOS HC-family devices are specified.
Why is the ceramic DIP-16 package of the SN54HC175J preferred in military and aerospace applications over plastic packages?
The ceramic DIP-16 package provides hermetic sealing, protecting the die from moisture ingress, ionic contamination, and corrosive atmospheres encountered in avionics and shipboard electronics. Unlike plastic SOIC or DIP packages, ceramic construction survives hundreds of thermal cycles between -55°C and 125°C without delamination, meeting MIL-PRF-38535 reliability requirements for Class B and Class S programs.
How does the SN54HC175J's 4-bit parallel load capability simplify data capture in control system designs?
All 4 D inputs are clocked simultaneously on the rising edge of a single clock signal, so a 4-bit data bus can be captured in one clock cycle without additional serialization logic. This reduces glue logic by eliminating separate latch enable signals and allows the 4 outputs to drive downstream combinatorial logic or address decoders directly at up to 5.2 mA sink current per output pin.
When would a designer choose the SN54HC175J over its commercial-grade counterpart SN74HC175?
The SN54HC175J is rated for the military temperature range of -55°C to 125°C, compared to the commercial 0°C to 70°C of SN74HC175. Designs destined for defense ground vehicles, satellite subsystems, or industrial equipment exposed to extreme cold or heat will specify the SN54 variant to maintain guaranteed 21 MHz timing and 50 pF drive specifications across the full range.
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Why Buy from FindMyChip
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $11.9025 | $11.90 |
| 2+ | $7.9350 | $15.87 |
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