SNJ54AS175BJ Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54AS175BJ is a military-grade quadruple D-type flip-flop with asynchronous clear from Texas Instruments, built with Advanced Schottky logic for 100 MHz operation in a 16-pin ceramic DIP package. It features a clear input, clock enable, and four independent D flip-flops operating from -55°C to 125°C, ideal for high-reliability data storage and register applications. Available for military and aerospace procurement worldwide.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54AS175BJ 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
Key Features
- Quadruple D-type flip-flop with asynchronous clear for simultaneous reset of all four bits
- Advanced Schottky (AS) logic delivering up to 100 MHz clock frequency for high-speed sequential circuits
- Military-grade 16-pin ceramic DIP (JESD-30 R-GDIP-T16) rated -55°C to 125°C
- 20 mA maximum output sink current (I_ol) ensuring robust fan-out for military bus driving
- 50 pF load capacitance specification for reliable signal integrity in extreme environments
Applications
The SNJ54AS175BJ is designed for military, aerospace, and high-reliability industrial applications requiring fast D-type flip-flop registers in extreme temperature environments. Common uses include data latching in avionics computers, address registers in memory subsystems, and synchronization stages in radar and communication signal processing equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | AS |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 100000000Hz |
| Max I(ol) | 0.02A |
| 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) | 34mA |
| Prop. Delay@Nom-Sup | 11ns |
| Propagation Delay (tpd) | 11.5ns |
| Qualification Status | Not Qualified |
| Screening Level | MIL-PRF-38535 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | TTL |
| 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 | 100MHz |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum clock frequency of the SNJ54AS175BJ?
The SNJ54AS175BJ operates at a maximum clock frequency of 100 MHz (100,000,000 Hz), which is characteristic of the Advanced Schottky (AS) logic family's high-speed bipolar process. This makes it suitable for fast digital sequential circuits including high-speed registers, counters, and synchronization elements in military and aerospace computing systems.
What is the operating temperature range of the SNJ54AS175BJ?
The SNJ54AS175BJ is rated for military-standard operation from -55°C to 125°C. This extended temperature range qualifies the device for aerospace avionics, defense electronics, and harsh industrial environments where commercial-grade ICs rated to only 70°C or 85°C would fail to operate reliably.
How many flip-flops are in the SNJ54AS175BJ and what is the package?
The SNJ54AS175BJ contains four independent D-type flip-flops (quadruple configuration) in a 16-pin ceramic dual-in-line package (CDIP). The ceramic package provides superior moisture resistance and thermal stability compared to plastic DIP packages, which is critical for long-life military and aerospace applications.
Does the SNJ54AS175BJ have a clear function and how does it operate?
Yes, the SNJ54AS175BJ includes an asynchronous clear input that simultaneously resets all four flip-flop outputs to logic LOW, independent of the clock signal. This synchronous clear capability is essential for system initialization sequences and fault-recovery routines in safety-critical embedded control and avionics applications.
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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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