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NXP Semiconductors N74F534N,602
- Part No.:
- N74F534N,602
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
N74F534N,602.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,790
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Product details
Overview
N74F534N,602 from Philips Semiconductors is an octal D flip-flop with inverting 3-state outputs, designed for high-speed bus interface and data latching in TTL-compatible systems. It features positive-edge clock triggering, independent register and output-enable control, 165 MHz maximum clock frequency, 24 mA low-level output drive, and operates at 5 V ±10% over 0°C to +70°C.
For engineers reviewing the N74F534N,602 datasheet, N74F534N,602 pinout, N74F534N,602 application, or N74F534N,602 equivalent, this device serves as a critical 8-bit edge-triggered register for synchronous data capture and controlled bus driving in legacy industrial controllers, test equipment, and memory address/data path logic where deterministic timing and high fan-out are required.
Technical Context
The N74F534N,602 implements two functionally independent sections: an 8-bit positive-edge-triggered D register and eight inverting 3-state output buffers. Register operation is fully edge-sensitive - input states sampled one setup time before CP's Low-to-High transition appear at Q outputs after propagation delay.
Output enable (OE, active-low) controls all eight buffers independently of register state. When OE is low, latched data appears inverted at Q0–Q7; when OE is high, outputs enter high-impedance state regardless of CP or D inputs - enabling true bus sharing without contention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74F (Fast TTL), compatible with standard TTL and CMOS inputs |
| Max Clock Frequency | 165 MHz at VCC = 5 V, CL = 50 pF - supports high-throughput data capture in real-time control loops |
| Output Drive | 24 mA sink (IOL), 3 mA source (IOH) - drives heavy capacitive loads and multiple TTL inputs directly |
| Propagation Delay | CP to Q: 7.5 ns max - ensures tight timing margins in synchronous pipelines |
| Setup/Hold Time | ts = 2.5 ns min, th = 0 ns - simplifies timing closure with minimal external delay compensation |
| Supply Current | 51 mA typical total ICC at VCC = 5 V, OE = 4.5 V - enables predictable power budgeting in multi-device systems |
| Operating Temperature | 0°C to +70°C commercial range - validated for use in non-automotive industrial environments |
Pinout & Package
Package: 20-pin plastic dual in-line package (DIP), SOT146-1 footprint, 300 mil width, with VCC on pin 20 and GND on pin 10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (active-low) | Global 3-state enable - asserts low to connect Q outputs to bus; high disables all outputs to high-Z |
| 2–9, 11–18 | D0–D7, Q0–Q7 | Inverting data path: Dn → Qn (inverted) on CP edge; Q outputs reflect latched D values only when OE is low |
| 10 | GND | Ground reference for all internal logic and output drivers |
| 19 | CP | Positive-edge clock - triggers register update only on Low-to-High transition; no metastability immunity |
| 20 | VCC | +5 V supply - must be decoupled locally; tolerates ±10% variation per spec |
Key Features
| Feature | Design Value |
|---|---|
| Independent register & buffer control | CP updates latches while OE toggles output drivers - allows data hold during bus arbitration |
| Inverting 3-state outputs | Qn = NOT(Dn) when enabled - eliminates need for external inverters in complemented bus architectures |
| High fan-out capability | Q outputs support 150/40 U.L. (high/low) - drives up to 150 standard TTL inputs or 40 low-power Schottky loads |
| Low propagation skew | Matched tPLH/tPHL ≤ 7.5 ns across all 8 channels - maintains data coherency in parallel paths |
| Robust DC specs | VIL = 0.8 V max, VIH = 2.0 V min - ensures noise margin >400 mV in noisy industrial settings |
Applications
| Industrial PLC I/O Expansion | Legacy Memory Address Latching |
|---|---|
|
Use Scenario: Expanding discrete I/O points in programmable logic controllers using shared backplane buses. IC Role / Device Role / Timing Role: Latches parallel sensor/actuator status bits on CP edge and presents them inverted to the bus under OE control. Use Value: Enables deterministic sampling of 8-bit status words at up to 165 MHz while isolating the CPU bus during configuration cycles. |
Use Scenario: Capturing and holding upper address bits for dynamic RAM access in vintage microcomputer systems. IC Role / Device Role / Timing Role: Registers address lines during ALE pulse and drives them onto multiplexed bus with inversion matching system logic polarity. Use Value: Eliminates external inverters and provides 24 mA drive to meet DRAM address setup requirements under load. |
| Test Equipment Pattern Generation | Parallel Data Acquisition Interface |
|
Use Scenario: Generating synchronized stimulus patterns for digital circuit validation using pattern memory and sequencer logic. IC Role / Device Role / Timing Role: Holds preloaded test vectors and outputs them in burst mode via OE gating, synchronized to system clock. Use Value: Delivers sub-8 ns timing precision and high-impedance isolation between pattern phases to prevent signal crosstalk. |
Use Scenario: Buffering parallel ADC output words into a microcontroller's data bus with cycle-accurate timing. IC Role / Device Role / Timing Role: Captures ADC conversion result on CP edge and presents inverted data only during MCU read window via OE. Use Value: Prevents bus contention during conversion and ensures clean data transfer with 0 ns hold time requirement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D flip-flop with 3-state outputs applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74F534N | Same logic function, pinout, and AC/DC specs; manufactured by Texas Instruments with identical 74F family characterization | No functional difference - direct second-source part for supply chain diversification | Select when TI-sourced 74F logic is preferred for procurement continuity or existing BOM alignment |
| 74ACT534PC | Advanced CMOS (ACT) family: 5 V operation, lower ICC (20 mA typ), higher noise immunity (VIH = 3.5 V), but slower fMAX (125 MHz) | Better noise margin and power efficiency, but insufficient speed for >135 MHz clock domains | Choose for low-noise, low-power systems where 125 MHz clock rate is acceptable and TTL compatibility is not required |
Compared with SN74F534N and 74ACT534PC, the N74F534N,602 delivers the highest clock speed (165 MHz) and strongest drive (24 mA) in the 74F family, making it optimal for legacy high-speed TTL systems requiring strict timing compliance and proven interoperability.
Availability
N74F534N,602 is available at Aetrix Electronics and suitable for industrial PLC expansion, legacy memory subsystems, test equipment pattern generation, and parallel data acquisition interfaces requiring stable component supply and long-term obsolescence management.
Supply support for N74F534N,602 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
Philips Semiconductors (now NXP Semiconductors) is a global semiconductor innovator with leadership in logic, analog, and RF technologies for industrial, automotive, and consumer markets.
The 74F logic family, including the N74F534N,602, was engineered for high-speed, low-latency digital interfacing in commercial-grade systems operating at 5 V, emphasizing timing predictability, bus-driving strength, and TTL compatibility.
FAQ
What is the exact logic function of the N74F534N,602?
The N74F534N,602 is an octal D-type flip-flop with inverting 3-state outputs. On each rising edge of the clock (CP), the state of D0–D7 is latched and appears inverted at Q0–Q7. The active-low Output Enable (OE) independently controls whether those inverted outputs drive the bus (OE low) or enter high-impedance state (OE high). This behavior is confirmed in the Philips 2000 product specification functional table and logic diagram.
Does the N74F534N,602 support 3.3 V operation?
No, the N74F534N,602 is specified only for 5 V ±10% operation (4.5 V to 5.5 V). Its absolute maximum ratings, recommended operating conditions, and all DC/AC electrical characteristics assume VCC = 5 V. Applying 3.3 V violates the minimum supply voltage requirement and will result in undefined logic levels and unreliable operation. The N74F534N,602 must be used in 5 V systems.
What is the pin 10 and pin 20 assignment for the N74F534N,602?
Per the Philips SOT146-1 package drawing and pin configuration diagram, pin 10 is GND and pin 20 is VCC. This is explicitly stated in the "PIN CONFIGURATION" section and repeated in the "LOGIC DIAGRAM" footnote: "VCC=Pin 20, GND=Pin 10". No alternate assignments exist for the N74F534N,602 in its DIP package.
Can the N74F534N,602 be used as a non-inverting register?
No - the N74F534N,602 provides only inverting outputs (Qn = NOT(Dn)). There is no internal bypass or configuration mode to disable inversion. To achieve non-inverting behavior, external inverters would be required on each Q output, or a different part such as the 74F574 (non-inverting octal D flip-flop) should be selected. The inversion is hardwired and documented in the device description and logic symbol.
Is the N74F534N,602 RoHS compliant?
The N74F534N,602 was manufactured prior to RoHS implementation and is not RoHS compliant. Its datasheet (2000 Aug 01) predates EU Directive 2002/95/EC, and Philips did not issue RoHS-compliant versions of this specific 74F-series DIP part. For RoHS-compliant alternatives, consider modern equivalents like the 74LVC574A in SOIC packages, but note functional and timing differences versus the N74F534N,602.
N74F534N,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74F
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 165 MHz
- Max Propagation Delay @ V, Max CL:
- 7ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 3mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 86 mA
- Input Capacitance:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 20-DIP
N74F534N,602 FAQ
1.How can I place an order for N74F534N,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for N74F534N,602 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 N74F534N,602 reliable?
The price and inventory of N74F534N,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for N74F534N,602 is usually 5 days.
3.What payment methods are accepted for N74F534N,602?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for N74F534N,602 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for N74F534N,602?
N74F534N,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your N74F534N,602 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 N74F534N,602?
For technical support, including N74F534N,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your N74F534N,602 requirements.
6.How does Aetrix verify that N74F534N,602 is sourced from the original manufacturer or authorized distributors?
All N74F534N,602 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 N74F534N,602 meets industry standards.
7.What is the process for return or replacement of N74F534N,602?
All N74F534N,602 units undergo pre-shipment inspection (PSI). If there is an issue with N74F534N,602, 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 N74F534N,602 part is unused and in its original packaging.
Return procedure for N74F534N,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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