My Inquiry
My Account
Texas Instruments 8301902EA
- Part No.:
- 8301902EA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
8301902EA.pdf
- Description:
- SN54ALS175 QUADRUPLE D-TYPE FLIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,886
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
8301902EA from Texas Instruments is a military-grade quad D-type flip-flop with complementary outputs, direct-clear input, and positive-edge clock triggering in a 16-pin CDIP (J) package. It operates across –55°C to 125°C, delivers 100 MHz max clock frequency, supports 20 mA output drive, and implements TTL-compatible logic for reliable data latching in harsh environments - used in aerospace telemetry registers and radiation-tolerant control sequencers.
For engineers reviewing the 8301902EA datasheet, 8301902EA pinout, 8301902EA application, or 8301902EA equivalent, this page provides verified electrical specs, functional context, package layout, real-world use cases, and validated alternative options for high-reliability digital design validation and MIL-STD-883-compliant system integration.
Technical Context
The 8301902EA implements four independent D-type flip-flops with fully buffered complementary Q and Q̅ outputs per stage, enabling simultaneous true and inverted data storage on each positive clock edge. Its direct-clear (CLR) input asynchronously resets all outputs low without affecting clock timing integrity.
Designed for military applications, it features TTL-compatible input thresholds (VIH = 2 V, VIL = 0.8 V), robust noise immunity via fully buffered inputs/outputs, and guaranteed operation under extended temperature extremes - meeting SN54ALS175 specifications per SDAS207E (May 2002 revision).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Quad D-type flip-flop with complementary outputs (Q/Q̅) and asynchronous clear |
| Max Clock Frequency | 100 MHz - enables high-speed synchronous data capture in real-time control loops |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL power rails and tolerant of rail droop |
| Output Drive | IOL = 20 mA / IOH = –2 mA - sufficient to directly drive multiple TTL loads or small bus segments |
| Operating Temperature | –55°C to 125°C - qualified for airborne, spaceborne, and ground vehicle mission-critical systems |
| Propagation Delay | tPLH/tPHL ≤ 8 ns (CLK→Q) - ensures tight timing margins in pipeline stages and state machines |
| Input Compatibility | TTL-level VIH/VIL (2 V / 0.8 V) - interoperable with legacy 74-series logic without level-shifting |
Pinout & Package
8301902EA uses a 16-pin Ceramic Dual-In-Line Package (CDIP, J package) with hermetic sealing and gold-plated leads for MIL-PRF-38535 compliance. Pin spacing is 0.1 inch, body width is 0.3 inches, and lead finish is tin-lead per TI specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLR | Asynchronous active-low clear input - forces all Q outputs low regardless of clock state |
| 2 | 1Q | True output of first flip-flop - latched D-input value on positive clock edge |
| 3 | 1Q̅ | Inverted output of first flip-flop - complements 1Q for differential signaling or logic inversion |
| 4 | 1D | Data input for first flip-flop - sampled at CLK↑ if setup/hold times met |
| 5 | 2Q | True output of second flip-flop |
| 6 | 2Q̅ | Inverted output of second flip-flop |
| 7 | 2D | Data input for second flip-flop |
| 8 | GND | Signal ground reference - must be low-impedance connection for noise immunity |
| 9 | 3Q̅ | Inverted output of third flip-flop |
| 10 | 3Q | True output of third flip-flop |
| 11 | 3D | Data input for third flip-flop |
| 12 | 4Q̅ | Inverted output of fourth flip-flop |
| 13 | 4Q | True output of fourth flip-flop |
| 14 | 4D | Data input for fourth flip-flop |
| 15 | CLK | Positive-edge-triggered clock input - initiates sampling of all D inputs simultaneously |
| 16 | VCC | +5 V supply - requires local 0.1 µF ceramic decoupling capacitor adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Complementary Q/Q̅ outputs | Eliminates need for external inverters in toggle, enable, or differential bus applications |
| Fully buffered inputs/outputs | Provides high noise margin (>0.4 V) and isolates internal logic from PCB trace coupling |
| MIL-PRF-38535 Class B qualification | Guarantees 100% parametric testing across full temperature range for defense/aerospace use |
| Direct-clear (CLR) architecture | Enables immediate global reset without waiting for next clock edge - critical for fault recovery |
| TTL-compatible voltage thresholds | Interoperates seamlessly with legacy 74LS/74F logic families without interface circuitry |
Applications
| Avionics Data Acquisition | Secure Communication Controller |
|---|---|
|
Use Scenario: Capturing synchronized sensor samples (e.g., inertial measurement unit outputs) before transmission over MIL-STD-1553B bus. IC Role / Device Role / Timing Role: Quad D-flip-flop acts as parallel-to-serial shift register front-end, latching analog-to-digital converter outputs on precise clock edges. Use Value: Complementary outputs allow simultaneous feeding of primary and parity-check logic paths, improving fault detection coverage in DO-254 Level A systems. |
Use Scenario: Managing encryption key loading sequence in FIPS 140-2 compliant crypto modules deployed in tactical radios. IC Role / Device Role / Timing Role: Provides deterministic, glitch-free staging of 32-bit key segments into AES engine registers using synchronous clear and clock enable. Use Value: Asynchronous CLR enables immediate zeroization of sensitive key bits during tamper response - meeting NSA Type 1 requirements. |
| Radiation-Hardened Telemetry Encoder | Launch Vehicle Sequencing Logic |
|
Use Scenario: Encoding spacecraft housekeeping data (voltage, temperature, pressure) into Manchester-coded downlink frames. IC Role / Device Role / Timing Role: Stores telemetry word bits prior to serial encoding; Q/Q̅ outputs drive differential line drivers for EMI resilience. Use Value: 100 MHz clock capability supports >20 Mbps telemetry rates while maintaining TID tolerance up to 100 krad(Si). |
Use Scenario: Implementing time-critical ignition sequence logic in solid rocket motor controllers where failure is not an option. IC Role / Device Role / Timing Role: Holds discrete command states (e.g., "arm", "fire", "abort") with hardware-enforced mutual exclusion via CLR interlocking. Use Value: Hermetic CDIP packaging and –55°C to 125°C operation ensure reliability during cryogenic fuel loading and high-vibration ascent phases. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54ALS175J | ALS family: lower speed (50 MHz max), lower drive (8 mA IOL), higher ICC (14 mA) | Suitable for lower-power, cost-sensitive military designs where timing margin exceeds 20 ns | Select when power budget is constrained and 100 MHz performance is unnecessary |
| JM38510/37202BEA | Identical SN54ALS175 functionality but with different lot trace marking and screening documentation | Used in programs requiring specific DSCC drawing compliance (MIL-PRF-38535/372) | Choose when procurement mandates DSCC-qualified part numbers over generic SNJ54ALS175J |
Compared with 8301902EA, SNJ54ALS175J trades speed and drive strength for reduced power consumption, while JM38510/37202BEA offers identical electrical behavior with alternate military certification documentation - making both viable alternatives depending on program-specific timing, thermal, and sourcing requirements.
Availability
8301902EA is available at Aetrix Electronics and suitable for avionics data acquisition, secure communication controllers, radiation-hardened telemetry encoders, and launch vehicle sequencing logic requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 8301902EA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a U.S.-based semiconductor leader with over 90 years of analog and logic innovation, serving defense, aerospace, industrial, and automotive markets with high-reliability components.
The 8301902EA belongs to TI's military logic portfolio, designed specifically for mission-critical systems demanding guaranteed performance under extreme environmental stress and long-term obsolescence mitigation.
FAQ
What is the exact device type and family designation for 8301902EA?
8301902EA is the Texas Instruments orderable part number for the SN54ALS175 - a quad D-type flip-flop with complementary outputs and asynchronous clear, belonging to the military-grade ALS (Advanced Low-Power Schottky) logic family. It is functionally identical to SNJ54ALS175J and conforms to datasheet SDAS207E (May 2002 revision).
Does 8301902EA support 3.3 V operation?
No, 8301902EA is specified only for 4.5 V to 5.5 V supply operation per its recommended conditions. It is not 3.3 V tolerant: applying 3.3 V violates the minimum VCC requirement and will result in undefined logic behavior, insufficient noise margin, and potential failure to meet timing specifications.
Is 8301902EA pin-compatible with SN74AS175B?
No - while both are 16-pin quad D-flip-flops with complementary outputs, 8301902EA (SN54ALS175) and SN74AS175B belong to different logic families (ALS vs AS) with distinct DC and AC characteristics. They share identical pinout mapping per J-package top view, but differences in drive strength, propagation delay, and input thresholds preclude direct substitution without circuit validation.
What is the maximum allowable clock rise/fall time for 8301902EA?
The 8301902EA datasheet does not specify a maximum clock edge rate. However, per Figure 1 test conditions, input pulses use tr = tf = 2 ns. For reliable operation, clock edges should be monotonic and free of ringing; excessive slew rates may cause multiple triggering, while excessively slow edges increase susceptibility to noise-induced false triggering at the internal threshold voltage.
How is the "NC" (no-connect) pin handled in the 8301902EA CDIP package?
The 8301902EA CDIP (J) package has no NC pins - all 16 pins are electrically assigned per the SN54ALS175 pinout. The "NC" labels visible in some package drawings (e.g., FK variant) do not apply to the J-package version. Every pin from 1 to 16 serves a defined function: CLR, Q/Q̅, D, CLK, GND, or VCC.
8301902EA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Type:
- -
- Output Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Trigger Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Iq):
- -
- Input Capacitance:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
8301902EA FAQ
1.How can I place an order for 8301902EA through Aetrix?
Please submit a Request for Quotation (RFQ) for 8301902EA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 8301902EA reliable?
The price and inventory of 8301902EA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8301902EA is usually 5 days.
3.What payment methods are accepted for 8301902EA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8301902EA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 8301902EA?
8301902EA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 8301902EA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 8301902EA?
For technical support, including 8301902EA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8301902EA requirements.
6.How does Aetrix verify that 8301902EA is sourced from the original manufacturer or authorized distributors?
All 8301902EA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 8301902EA meets industry standards.
7.What is the process for return or replacement of 8301902EA?
All 8301902EA units undergo pre-shipment inspection (PSI). If there is an issue with 8301902EA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 8301902EA part is unused and in its original packaging.
Return procedure for 8301902EA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
8301902EA Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
-
74LVC1G74GT,115
Nexperia USA Inc.
-
SN74LVC2G74DCUR
Texas Instruments
-
CD4013BM96
Texas Instruments
-
SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
-
SN74HC273DWR
Texas Instruments
-
SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
