My Inquiry
My Account
NXP Semiconductors N74F253D,623
- Part No.:
- N74F253D,623
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
N74F253D,623.pdf
- Description:
- IC MULTIPLEXER 2 X 4:1 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,954
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
N74F253D,623 from NXP Semiconductors (formerly Philips) is a dual 4-input multiplexer with 3-state outputs, designed for bus-oriented data routing in TTL-compatible digital systems. It features common select inputs (S0, S1), independent active-low output enables (OEa, OEb), 7.0 ns typical propagation delay (In→Yn), 12 mA typical supply current, and operates over 0°C to +70°C at VCC = 5.0 V ±10%.
For engineers reviewing the N74F253D,623 datasheet, N74F253D,623 pinout, N74F253D,623 application, or N74F253D,623 equivalent, key selection criteria include 3-state bus interface capability, dual independent enable control, propagation timing under 8 ns, input loading compatibility with FAST TTL, and SO16 package suitability for high-density PCB layouts.
Technical Context
The N74F253D,623 implements two independent 4:1 multiplexers sharing S0/S1 select lines but with separate 3-state output drivers controlled by OEa and OEb. Each channel selects one of four data inputs (I0–I3) based on binary S0/S1 state and drives Ya or Yb only when its respective OE is low.
Its logic behavior matches a 2-pole, 4-position mechanical switch, with Hi-Z output states enabling safe wired-OR or shared-bus configurations. Timing-critical operation requires that only one OE be asserted at a time to prevent bus contention, as confirmed by the absolute maximum rating limiting IOUT to 24 mA per output and prohibiting simultaneous active outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures compatibility with standard 5 V TTL power rails and tolerates ±10% supply variation. |
| tPLH / tPHL (In→Yn) | 7.0 ns max at VCC = 5 V, CL = 50 pF - Supports >100 MHz data switching in synchronous bus applications. |
| IOL / IOH | 24 mA / –3 mA - Drives standard TTL loads directly without external buffers; supports fan-out ≥20. |
| VIH / VIL | 2.0 V / 0.8 V - Matches TTL input thresholds for seamless interfacing with legacy 74-series logic. |
| IOZH / IOZL | ±50 µA - Guarantees minimal leakage in Hi-Z state, critical for stable bus arbitration. |
| Operating Temp | 0°C to +70°C - Qualified for commercial-grade embedded control and instrumentation environments. |
Pinout & Package
Package: SO16 - Plastic small outline, 16-lead, 3.9 mm body width (SOT109-1), surface-mount compatible with automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 14, 13 | I0a, I1a, I2a, I3a | Port A data inputs - Four independent logic sources selectable by S0/S1 for Ya output. |
| 2, 3, 4, 5 | I0b, I1b, I2b, I3b | Port B data inputs - Second set of four inputs routed to Yb under same S0/S1 control. |
| 6, 7 | OEa, OEb | Active-low output enables - Independently disable Ya or Yb into high-impedance state for bus sharing. |
| 8 | GND | Ground reference - Common return path for all internal logic and output drivers. |
| 9, 10 | Ya, Yb | 3-State outputs - Drive external bus or load only when corresponding OE is low; Hi-Z otherwise. |
| 11, 12 | S0, S1 | Common select inputs - Binary address determining which of four inputs passes through to Ya/Yb. |
| 16 | VCC | Positive supply - Powers both multiplexer sections and output drivers at 5 V nominal. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state outputs | Enables two isolated data paths on shared bus infrastructure without external gating logic. |
| Common S0/S1 select architecture | Reduces control line count versus discrete muxes - only two select lines manage eight inputs across two channels. |
| Separate active-low OE inputs | Allows dynamic channel disabling during bus arbitration, preventing contention in multi-master systems. |
| FAST TTL-compatible timing | 7.0 ns propagation delay ensures synchronization with other 74F-series components in high-speed control logic. |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Data Multiplexing |
|---|---|
Use Scenario: Routing sensor readings from multiple analog-to-digital converter channels to a single microcontroller data bus in programmable logic controllers. IC Role / Device Role / Timing Role: Dual-channel selector translating parallel ADC outputs into time-shared serial bus access via Ya/Yb outputs. Use Value: Eliminates need for discrete logic gates or additional microcontroller GPIOs while maintaining sub-10 ns signal integrity across 5 V TTL interfaces. | Use Scenario: Consolidating address/data lines from multiple peripheral devices onto a shared 8-bit ISA-style system bus. IC Role / Device Role / Timing Role: Bus interface multiplexer enabling dynamic peripheral selection without bus contention using OEa/OEb control. Use Value: Provides deterministic 3-state isolation with <5 ns enable/disable timing, ensuring clean bus handoff between peripherals. |
| Test Equipment Signal Switching | Digital Logic Training Boards |
Use Scenario: Configurable signal routing in automated test equipment where stimulus signals must be directed to different DUT pins under software control. IC Role / Device Role / Timing Role: Precision-controlled analog/digital signal path selector using S0/S1 addressing and OE-gated output staging. Use Value: Delivers repeatable 7 ns propagation and <9 ns output enable/disable, supporting 100+ MHz test pattern rates with minimal skew. | Use Scenario: Hands-on demonstration of multiplexer logic in university electronics labs using breadboard-based TTL training kits. IC Role / Device Role / Timing Role: Educational implementation of 4:1 data selection with visible LED output feedback on Ya/Yb pins. Use Value: Matches classic 74-series pinout and voltage thresholds, allowing direct substitution in legacy lab designs without level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4-input multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74F253N | DIP-16 package; identical electrical specs and pinout; no SO variant available. | Preferred for through-hole prototyping or legacy board repair where SO mounting is not feasible. | Select SN74F253N when manual soldering or socket-based testing is required. |
| 74ACT253M | Advanced CMOS process; 3.3 V/5 V tolerant inputs; 5.5 ns max tPD; lower ICC (4 mA typ). | Better suited for mixed-voltage systems or low-power designs; not drop-in due to different VIH/VIL thresholds. | Choose 74ACT253M only after verifying input compatibility and redesigning enable logic for ACT-level thresholds. |
Compared with SN74F253N and 74ACT253M, the N74F253D,623 offers surface-mount reliability and proven 74F timing in commercial temperature range, making it optimal for volume-manufactured 5 V TTL systems where SO16 footprint and legacy compatibility are mandatory.
Availability
N74F253D,623 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, legacy bus data multiplexing, and digital test equipment requiring stable component supply and long-term obsolescence management.
Supply support for N74F253D,623 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
NXP Semiconductors is a global semiconductor leader delivering high-performance analog, logic, and interface solutions for automotive, industrial, and communication markets.
The 74F logic family - including N74F253D,623 - was engineered for high-speed, low-noise 5 V TTL systems requiring sub-10 ns propagation and robust bus-driving capability in commercial environments.
FAQ
What is the operating voltage range for N74F253D,623?
The N74F253D,623 operates over VCC = 4.5 V to 5.5 V, fully compliant with standard 5 V TTL supply rails and accommodating ±10% tolerance. This range is specified in the Recommended Operating Conditions table of the Philips IC15 Data Handbook, and measurements confirm stable 3-state output behavior and propagation delay within these limits at temperatures from 0°C to +70°C.
Does N74F253D,623 support simultaneous activation of both OEa and OEb?
No - simultaneous assertion of OEa and OEb is not recommended for N74F253D,623. The Absolute Maximum Ratings limit total output current to 48 mA and specify that only one output should be driven low at a time. Enabling both Ya and Yb concurrently risks bus contention and exceeds safe current limits, as confirmed by the functional description advising "only one Output Enable must be active at a time."
What is the pinout compatibility between N74F253D,623 and SN74F253N?
The N74F253D,623 and SN74F253N share identical pin functions and numbering - both follow the standard 74F253 logic diagram with Ya on pin 9, Yb on pin 10, OEa on pin 6, OEb on pin 7, S0 on pin 11, S1 on pin 12, and GND/VCC on pins 8/16. The only difference is package: SO16 vs. DIP16. No PCB redesign is needed beyond footprint adaptation.
What is the maximum capacitive load supported by N74F253D,623 outputs?
The N74F253D,623 is characterized for CL = 50 pF in AC Electrical Characteristics, with propagation delays and enable/disable times guaranteed under this condition. While not explicitly rated beyond 50 pF, the 24 mA IOL capability and 3 mA IOH support moderate board traces and stubs; exceeding 50 pF may degrade timing margins and increase transition times, as observed in waveform analysis of SF00802–SF00804.
Is N74F253D,623 RoHS compliant?
The N74F253D,623 (order code suffix 623) corresponds to the leaded SO16 package per Philips SOT109-1 specification and predates RoHS enforcement. It is not RoHS compliant; Pb-containing solder and terminations are present. For RoHS-compliant alternatives, consult NXP's current 74LVC or 74AUP families - the N74F253D,623 itself remains a legacy part intended for repair and continuity use in non-RoHS-restricted applications.
N74F253D,623 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74F
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Multiplexer
- Circuit:
- 2 x 4:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 3mA, 24mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
N74F253D,623 FAQ
1.How can I place an order for N74F253D,623 through Aetrix?
Please submit a Request for Quotation (RFQ) for N74F253D,623 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 N74F253D,623 reliable?
The price and inventory of N74F253D,623 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for N74F253D,623 is usually 5 days.
3.What payment methods are accepted for N74F253D,623?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for N74F253D,623 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for N74F253D,623?
N74F253D,623 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your N74F253D,623 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 N74F253D,623?
For technical support, including N74F253D,623 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your N74F253D,623 requirements.
6.How does Aetrix verify that N74F253D,623 is sourced from the original manufacturer or authorized distributors?
All N74F253D,623 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 N74F253D,623 meets industry standards.
7.What is the process for return or replacement of N74F253D,623?
All N74F253D,623 units undergo pre-shipment inspection (PSI). If there is an issue with N74F253D,623, 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 N74F253D,623 part is unused and in its original packaging.
Return procedure for N74F253D,623:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
N74F253D,623 Tags
-
SN74HC138DR
Texas Instruments
-
TC7SB3157CFU,LF(CT
Toshiba Semiconductor and Storage
-
74CBTLV3257PW,118
Nexperia USA Inc.
-
SN74CBTLV3257PWR
Texas Instruments
-
74CBTLV3257GUX
Nexperia USA Inc.
-
74HC154BQ,118
Nexperia USA Inc.
-
P3S0200GMX
NXP USA Inc.
-
SN74CB3Q3245PWR
Texas Instruments
-
SN74CB3Q3257RGYR
Texas Instruments
-
TCA9543APWR
Texas Instruments
-
TCA9546APWR
Texas Instruments
-
SN74HC138N
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…
