My Inquiry
My Account
NXP Semiconductors N74F273AN,602
- Part No.:
- N74F273AN,602
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
N74F273AN,602.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,303
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
N74F273AN,602 from Philips Semiconductors is an octal D-type flip-flop IC with edge-triggered operation, 170 MHz maximum clock frequency, 25 mA typical supply current, and 20-pin plastic DIP (SOT146-1) packaging. It provides eight synchronized D-to-Q registers with buffered common clock (CP) and asynchronous master reset (MR), used in digital control logic for microprocessor address latching and state storage.
For engineers reviewing the N74F273AN,602 datasheet, N74F273AN,602 pinout, N74F273AN,602 application, or N74F273AN,602 equivalent, key selection criteria include setup/hold timing (ts = 2.5 ns, th = 1.0 ns), propagation delay (tPLH/tPHL ≤ 10.0 ns), output drive capability (IOL = 20 mA), and commercial temperature range (0°C to +70°C).
Technical Context
The N74F273AN,602 implements eight independent D-type flip-flops sharing a single rising-edge–triggered clock input (CP) and active-low asynchronous master reset (MR). All outputs update synchronously on the Low-to-High transition of CP, conditioned by data stable one setup time prior.
It operates at VCC = 4.5 V to 5.5 V with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) and delivers rail-to-rail CMOS-level outputs capable of sourcing –1 mA and sinking 20 mA per Q pin. Input leakage is limited to ±20 µA across operating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| fMAX | 170 MHz - Maximum reliable clock rate for synchronous register updates |
| ICC (TYP) | 25 mA - Total supply current at VCC = 5 V, Tamb = 25°C, enabling low-power system integration |
| tPLH / tPHL | ≤10.0 ns - Output propagation delay from CP edge, critical for timing closure in high-speed logic |
| ts / th | 2.5 ns / 1.0 ns - Minimum data setup and hold times relative to CP edge, defining valid input window |
| IOL / IOH | 20 mA / –1 mA - Output sink/source strength, supporting direct drive of TTL loads or small bus segments |
| VIL / VIH | 0.8 V / 2.0 V - Input voltage thresholds compatible with standard TTL logic families |
| Tamb Range | 0°C to +70°C - Commercial-grade thermal operating envelope for non-automotive embedded systems |
Pinout & Package
Package: 20-pin plastic dual in-line package (DIP), SOT146-1, 300 mil body width, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | MR | Active-low asynchronous master reset - forces all Q outputs Low regardless of CP or D state |
| 2–9 | Q0–Q7 | True (non-inverted) registered outputs - reflect Dn state sampled at preceding CP rising edge |
| 10 | GND | Ground reference - return path for all internal currents and signal references |
| 11–18 | D0–D7 | Data inputs - sampled on CP rising edge if MR is High; high-impedance (20 µA loading) |
| 19 | CP | Buffered clock input - rising-edge–triggered control signal for simultaneous register update |
| 20 | VCC | Positive supply - 4.5 V to 5.5 V DC power source for internal logic and output drivers |
Key Features
| Feature | Design Value |
|---|---|
| Edge-triggered register architecture | Ensures deterministic sampling of D inputs only at CP rising edge, eliminating metastability risk from asynchronous data changes |
| Buffered CP and MR inputs | Reduces fan-out loading and enables reliable distribution across multi-device control planes without external buffers |
| High-impedance inputs (20 µA) | Minimizes loading on upstream logic, preserving signal integrity in dense TTL bus environments |
| Asynchronous master reset | Provides immediate, clock-independent initialization of all eight registers-critical for power-on or fault-recovery sequences |
| CMOS-compatible output drive | Delivers 20 mA sink current per Q pin, enabling direct interface with TTL inputs or small LED indicators without external drivers |
Applications
| Microprocessor Address Latching | State Machine Control Register |
|---|---|
Use Scenario: Capturing and holding 8-bit address bus signals during memory read/write cycles in 8-bit microprocessor systems (e.g., Z80, 8085). IC Role / Device Role / Timing Role: Edge-triggered D flip-flop acting as a synchronous address latch, isolating address lines from bus contention during instruction fetch and data transfer phases. Use Value: Ensures stable address presentation to memory devices with precise timing margin (ts = 2.5 ns, tPLH ≤ 10 ns), preventing address glitches that cause memory access errors. | Use Scenario: Storing current state bits in finite-state machines for industrial controllers, protocol handlers, or sequencers. IC Role / Device Role / Timing Role: Synchronized register bank providing deterministic next-state storage, updated only on clock edges with guaranteed setup/hold compliance. Use Value: Eliminates race conditions between combinational logic and storage elements, ensuring predictable state transitions even under varying temperature and supply conditions. |
| Parallel Data Capture Interface | Digital I/O Expansion Buffer |
Use Scenario: Sampling parallel sensor data (e.g., 8-bit ADC outputs or switch banks) into a microcontroller's data bus at precise intervals. IC Role / Device Role / Timing Role: Synchronous input capture register, transferring external data to internal bus on controlled clock edges while isolating noise-sensitive analog sources. Use Value: Provides clean, jitter-free data acquisition with minimal input loading (20 µA), preserving signal fidelity from high-impedance sensors or long PCB traces. | Use Scenario: Expanding GPIO count in embedded systems by buffering microcontroller port pins driving LEDs, relays, or discrete logic. IC Role / Device Role / Timing Role: Output register stage decoupling MCU timing constraints from slower peripheral actuation, enabling burst-mode writes followed by synchronized output update. Use Value: Delivers 20 mA per output to directly drive indicator LEDs or small solenoids, reducing BOM count and layout complexity versus discrete transistor buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74F273N | Same logic function, identical pinout, same AC/DC specs; manufactured by Texas Instruments under second-source agreement with Philips | No functional difference; validated for drop-in replacement in legacy 74F designs | Select when TI-sourced inventory or dual-sourcing strategy is required |
| 74ACT273PC | Higher speed (fMAX = 200 MHz), lower ICC (12 mA typ), 5 V tolerant inputs, but requires 4.5–5.5 V supply and has different AC timing margins | Better noise immunity and drive strength, but not pin-compatible due to different output structure and timing behavior | Choose for new designs needing improved performance and reduced power, with layout revision |
Compared with SN74F273N and 74ACT273PC, the N74F273AN,602 offers verified legacy compatibility and identical timing behavior within the original 74F family, making it optimal for repair, replacement, and continuity in existing commercial-grade digital systems where strict adherence to 1990s-era 74F specifications is required.
Availability
N74F273AN,602 is available at Aetrix Electronics and suitable for microprocessor address latching, state machine control register, and parallel data capture interface applications requiring stable component supply and long-term obsolescence management.
Supply support for N74F273AN,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) was a leading European semiconductor manufacturer known for broad logic, analog, and RF product portfolios before its semiconductor division was acquired by NXP in 2006.
The 74F273A belongs to Philips' 74F Fast TTL logic family, designed specifically for high-speed digital control systems requiring deterministic timing, robust noise immunity, and interoperability with legacy microprocessor buses and memory subsystems.
FAQ
What is the maximum clock frequency supported by the N74F273AN,602?
The N74F273AN,602 supports a maximum clock frequency of 170 MHz at VCC = 5.0 V and Tamb = +25°C, with a guaranteed minimum of 125 MHz across the full commercial temperature range (0°C to +70°C). This specification is measured under standard AC test conditions (CL = 50 pF, RL = 500 Ω) and reflects the device's ability to reliably sample and propagate data on each rising clock edge without timing violations.
Does the N74F273AN,602 have 3-state outputs?
No, the N74F273AN,602 does not feature 3-state outputs. It provides standard push-pull CMOS-compatible outputs (Q0–Q7) capable of sourcing –1 mA and sinking 20 mA. For 3-state functionality, Philips specified the 74F374 as the functional counterpart; the N74F273AN,602 is intended for true-output-only applications where bus contention is managed externally or not required.
What is the purpose of the Master Reset (MR) pin on the N74F273AN,602?
The Master Reset (MR) pin on the N74F273AN,602 is an active-low asynchronous control input that forces all eight Q outputs Low independently of the clock (CP) or data (D0–D7) states. This allows immediate, deterministic initialization of the entire register bank-essential for power-up sequencing, error recovery, or system-wide reset events without waiting for a clock edge.
Is the N74F273AN,602 pin-compatible with the SN74F273N?
Yes, the N74F273AN,602 is pin-compatible with the SN74F273N. Both devices share identical 20-pin DIP packaging (SOT146-1), matching pin assignments for MR, CP, D0–D7, Q0–Q7, VCC, and GND, and conform to the same 74F273A logic function and timing specifications. This enables direct substitution in legacy designs without PCB modification.
What are the recommended operating voltage and temperature ranges for the N74F273AN,602?
The N74F273AN,602 is rated for operation at VCC = 4.5 V to 5.5 V and ambient temperature (Tamb) from 0°C to +70°C. These limits are defined in the Recommended Operating Conditions table of the Philips datasheet and ensure compliance with TTL logic thresholds, propagation delays, and supply current specifications across the full commercial range.
N74F273AN,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:
- Master Reset
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 170 MHz
- Max Propagation Delay @ V, Max CL:
- 9.5ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 1mA, 20mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 38 mA
- Input Capacitance:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 20-DIP
N74F273AN,602 FAQ
1.How can I place an order for N74F273AN,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for N74F273AN,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 N74F273AN,602 reliable?
The price and inventory of N74F273AN,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for N74F273AN,602 is usually 5 days.
3.What payment methods are accepted for N74F273AN,602?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for N74F273AN,602 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for N74F273AN,602?
N74F273AN,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your N74F273AN,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 N74F273AN,602?
For technical support, including N74F273AN,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your N74F273AN,602 requirements.
6.How does Aetrix verify that N74F273AN,602 is sourced from the original manufacturer or authorized distributors?
All N74F273AN,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 N74F273AN,602 meets industry standards.
7.What is the process for return or replacement of N74F273AN,602?
All N74F273AN,602 units undergo pre-shipment inspection (PSI). If there is an issue with N74F273AN,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 N74F273AN,602 part is unused and in its original packaging.
Return procedure for N74F273AN,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
N74F273AN,602 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…
