My Inquiry
My Account
Texas Instruments SN54HC534J
- Part No.:
- SN54HC534J
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
SN54HC534J.pdf
- Description:
- BUS DRIVER, HC/UH SERIES
- Quantity:
- Payment:
- Shipping:
Inventory:310
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN54HC534J from Texas Instruments is a military-grade octal edge-triggered D-type flip-flop with 3-state inverting outputs, operating across –55°C to 125°C. It features positive-edge clock triggering, independent output-enable control, high-current 3-state outputs capable of driving up to 15 LSTTL loads, and logic-level compatibility with 2-V to 6-V supply rails. It is used in military-grade bus interface buffers and bidirectional data latching systems.
For engineers reviewing the SN54HC534J datasheet, SN54HC534J pinout, SN54HC534J application, or SN54HC534J equivalent, key selection considerations include its inverted-output architecture versus standard 'HC374, military temperature range qualification, 3-state enable timing (ten/tdis), and ceramic DIP (J) package mechanical and thermal characteristics.
Technical Context
The SN54HC534J implements eight independent D-type flip-flops, each triggered on the positive clock edge to latch the complement of the D-input state at Q. Its output-enable (OE) input operates asynchronously and does not affect internal flip-flop operation-data can be latched while outputs remain in high-impedance.
This device uses silicon-gate CMOS technology for low power consumption (ICC ≤ 160 µA at VCC = 6 V) and high noise immunity (VIH ≥ 3.15 V at VCC = 4.5 V). It supports capacitive bus loading up to 150 pF with guaranteed propagation delay (tpd ≤ 46 ns at VCC = 4.5 V, CL = 150 pF) and fast enable/disable transitions (ten/tdis ≤ 40 ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | High-speed CMOS (HC), compatible with TTL input thresholds and LSTTL load drive |
| Operating Temperature | –55°C to +125°C - qualified for full military environmental stress screening |
| Supply Voltage Range | 2 V to 6 V - enables interoperability across mixed-voltage system domains |
| Max Clock Frequency | 36 MHz at VCC = 6 V - supports high-throughput synchronous data capture |
| Output Drive Strength | ±7.8 mA at VCC = 6 V - sufficient to directly drive 15 LSTTL inputs without buffers |
| 3-State Enable Delay | ten ≤ 40 ns (CL = 150 pF) - ensures rapid bus release for time-critical multiplexing |
| Propagation Delay | tpd ≤ 46 ns (CLK to Q, VCC = 4.5 V, CL = 150 pF) - defines worst-case data path latency |
Pinout & Package
Ceramic Dual-In-Line Package (J), 300-mil width, 20-pin through-hole. Pin 10 is GND; Pin 20 is VCC. Pin 1 is OE (active-low output enable); Pins 2–9 and 11–18 are bidirectional data I/O terminals with inverted output mapping (D1→Q1̅, etc.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low 3-state enable | Asynchronous control: drives all Q outputs to high-Z when high; no effect on internal latch state |
| 2–9, 11–18 (D1–D8, Q1–Q8) | Data inputs / inverted complementary outputs | Each pair forms an inverting D-flip-flop: Qn = NOT(Dn) after CLK↑; Q outputs are active-low referenced |
| 16 (CLK) | Positive-edge clock input | Samples all D inputs simultaneously on rising edge; no internal synchronization delay |
| 10 (GND) | Ground reference | Primary return path for all logic and output current; must be low-inductance connection in high-speed layouts |
| 20 (VCC) | Power supply | Supplies core logic and output drivers; requires local 0.1-µF ceramic decoupling adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Inverting 3-state outputs | Eliminates need for external inverters in complemented bus architectures; reduces component count in parity or checksum circuits |
| Independent OE control | Enables dynamic bus arbitration without disrupting ongoing latch operations - critical for real-time register file access |
| Military temperature rating | Validated operation over –55°C to +125°C per MIL-PRF-38535 - suitable for avionics, missile guidance, and space-qualified electronics |
| High fanout capability | Drives 15 LSTTL loads directly - avoids signal degradation and timing skew introduced by buffer chains |
| Low quiescent current | ICC ≤ 160 µA at VCC = 6 V - supports low-power standby modes in battery-backed or radiation-hardened systems |
Applications
| Avionics Data Bus Interface | Military Radar Signal Register |
|---|---|
|
Use Scenario: Interfacing ADCs and DACs to a 16-bit MIL-STD-1553B-compatible parallel bus under extreme thermal cycling. IC Role / Device Role / Timing Role: Octal latch providing synchronized, inverted data staging between analog front-end and bus controller; OE enables time-multiplexed channel readout. Use Value: Guaranteed setup/hold (tsu = 25 ns, th = 5 ns at VCC = 4.5 V) and military temp range ensure deterministic timing across flight envelope. |
Use Scenario: Capturing pulsed RF sampling data in airborne radar receiver modules exposed to shock/vibration and wide ambient swings. IC Role / Device Role / Timing Role: High-reliability data capture register holding digitized IF samples prior to FFT processing; inverted outputs match downstream logic polarity. Use Value: Ceramic J-package provides superior mechanical stability and thermal cycling resistance vs. plastic alternatives. |
| Secure Crypto Module Register File | Tactical Radio Baseband Buffer |
|
Use Scenario: Storing intermediate cipher round results in FIPS-140-2 Level 3 certified encryption hardware deployed in field-deployable radios. IC Role / Device Role / Timing Role: Tamper-resilient storage element with non-volatile retention during brief power interruptions; OE allows secure zeroization via forced high-Z. Use Value: Low ICC and high noise margin (VIL ≤ 1.35 V at VCC = 4.5 V) prevent glitch-induced state corruption in EMI-heavy environments. |
Use Scenario: Bidirectional data buffering between baseband processor and RF transceiver IC in manpack radios operating in desert and arctic conditions. IC Role / Device Role / Timing Role: Direction-controlled bus driver using OE to isolate transmit/receive paths; inverted outputs align with transceiver's native logic convention. Use Value: 300-mil J-package footprint matches legacy board designs; eliminates redesign risk while upgrading to HC-speed performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN54LS374J | Non-inverting outputs, TTL logic family, higher ICC (40 mA typical), slower max fclock (30 MHz at VCC = 5 V) | Requires external inverters for complemented bus use; less suitable for low-power or mixed-voltage systems | Select when legacy TTL compatibility or direct replacement in LS-based designs is required |
| SNJ54HC374FK | Same HC family, non-inverting outputs, identical pinout and timing, ceramic flatpack (FK) package | Matches SN54HC534J functionally except output polarity; FK offers lower profile but different thermal impedance (θJA = 97°C/W) | Choose for space-constrained military PCBs where inverted outputs are not needed and FK mounting is preferred |
Compared with SN54HC534J, SN54LS374J trades power efficiency and voltage flexibility for TTL legacy support, while SNJ54HC374FK retains HC performance and packaging robustness but lacks output inversion-requiring layout or logic-level adaptation in complemented-data systems.
Availability
SN54HC534J is available at Aetrix Electronics and suitable for avionics data interfaces, military radar signal registers, and secure crypto module register files requiring stable component supply under extended temperature and long lifecycle commitments.
Supply support for SN54HC534J 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 company founded in 1930, specializing in analog, embedded processing, and logic solutions for industrial, automotive, aerospace, and defense markets.
The SN54HC534J belongs to TI's military-grade HC logic product line, designed specifically for high-reliability digital interfacing in harsh-environment systems where extended temperature operation, radiation tolerance, and long-term obsolescence mitigation are mandatory.
FAQ
What is the maximum clock frequency supported by the SN54HC534J?
The SN54HC534J supports a maximum clock frequency of 36 MHz at VCC = 6 V and TA = 25°C. At VCC = 4.5 V, the rated maximum is 31 MHz. These values assume proper signal integrity, controlled rise/fall times (≤400 ns at VCC = 6 V), and load capacitance ≤150 pF. The SN54HC534J datasheet specifies these limits under recommended operating conditions and confirms functionality across the full –55°C to +125°C range, though timing margins decrease at temperature extremes.
Does the SN54HC534J have non-inverting or inverting outputs?
The SN54HC534J has inverting outputs: each Q output reflects the logical complement of its corresponding D input after the positive clock edge. This distinguishes it from the functionally similar SN54HC374J, which provides true (non-inverting) outputs. The inversion is inherent to the device's architecture and is documented in the function table and logic diagram of the SN54HC534J datasheet.
What package type is used for the SN54HC534J?
The SN54HC534J uses a 20-pin ceramic dual-in-line package (J), 300-mil width, with through-hole leads. This package is specified for military applications and provides superior thermal stability, hermetic sealing potential, and mechanical robustness compared to plastic variants. Pin 10 is GND and Pin 20 is VCC, consistent with standard DIP orientation.
How does the output-enable (OE) pin function on the SN54HC534J?
The OE pin on the SN54HC534J is an active-low control that places all eight Q outputs into high-impedance state when asserted high. When OE is low, outputs operate normally (driving high or low based on latched D states). Critically, OE has no effect on internal flip-flop operation: data can be clocked in or retained regardless of OE state. This allows seamless bus arbitration without disrupting register contents in the SN54HC534J.
Is the SN54HC534J compatible with 3.3-V logic systems?
Yes, the SN54HC534J operates across 2 V to 6 V, making it fully compatible with 3.3-V logic systems. At VCC = 3.3 V, input thresholds are VIH ≥ 2.31 V and VIL ≤ 1.09 V (interpolated from datasheet specs), ensuring reliable interfacing with standard 3.3-V CMOS outputs. Output VOH/VOL levels also meet 3.3-V interface requirements, and drive strength remains sufficient for typical loads - confirming functional interoperability in mixed-voltage designs using the SN54HC534J.
SN54HC534J 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:
- -
SN54HC534J FAQ
1.How can I place an order for SN54HC534J through Aetrix?
Please submit a Request for Quotation (RFQ) for SN54HC534J 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 SN54HC534J reliable?
The price and inventory of SN54HC534J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN54HC534J is usually 5 days.
3.What payment methods are accepted for SN54HC534J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN54HC534J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN54HC534J?
SN54HC534J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN54HC534J 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 SN54HC534J?
For technical support, including SN54HC534J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN54HC534J requirements.
6.How does Aetrix verify that SN54HC534J is sourced from the original manufacturer or authorized distributors?
All SN54HC534J 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 SN54HC534J meets industry standards.
7.What is the process for return or replacement of SN54HC534J?
All SN54HC534J units undergo pre-shipment inspection (PSI). If there is an issue with SN54HC534J, 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 SN54HC534J part is unused and in its original packaging.
Return procedure for SN54HC534J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN54HC534J 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…
