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NXP Semiconductors N74F158AN,602
- Part No.:
- N74F158AN,602
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
N74F158AN,602.pdf
- Description:
- IC MULTIPLEXER 4 X 2:1 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,485
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Product details
Overview
N74F158AN,602 from Philips Semiconductors is a quad 2-input inverting data selector/multiplexer in a 16-pin plastic DIP package, operating at 5V with 3.7ns typical propagation delay and 10mA typical supply current. It routes four parallel data bits from one of two input sources to inverted outputs under control of a shared Select (S) and active-low Enable (E), commonly used in bus arbitration and register-to-bus data routing.
For engineers reviewing the N74F158AN,602 datasheet, N74F158AN,602 pinout, N74F158AN,602 application, or N74F158AN,602 equivalent, key selection criteria include its inverting output logic, industrial-grade temperature range support (–40°C to +85°C), TTL-compatible input thresholds, and guaranteed 20mA low-level output drive capability for direct interface with legacy logic families.
Technical Context
The N74F158AN,602 implements four independent 2:1 multiplexers with complementary output polarity: each Yn output is the logical inverse of the selected I0n or I1n input, conditioned by S and E. Its enable path (E → Yn) exhibits 4.5–7.5ns propagation delay across commercial temperature range, while data path (I0n/I1n → Yn) achieves 3.0–7.0ns depending on signal edge and load.
It uses standard TTL-compatible input thresholds (VIL = 0.8V max, VIH = 2.0V min) and delivers VOH ≥ 2.7V at –1mA and VOL ≤ 0.5V at 20mA, ensuring robust noise margins and fan-out capability to up to 33 standard TTL loads in the low state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5V to 5.5V - ensures compatibility with standard 5V TTL/CMOS systems and tolerance to rail variation. |
| Propagation Delay (I0n/I1n → Yn) | 3.0ns (typ) - enables high-speed data routing in 25MHz+ synchronous bus architectures. |
| Low-Level Output Current | 20mA - supports direct driving of multiple TTL inputs or LED indicators without external buffers. |
| Input Clamp Voltage | –1.2V - protects against negative transients during hot insertion or ESD events. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and telecom infrastructure. |
| Logic Family | Fast TTL - provides 3× speed improvement over standard 74LS with backward-compatible voltage levels. |
Pinout & Package
Package: 16-pin plastic dual in-line package (DIP), 300 mil width, SOT38-4 footprint per Philips specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 11, 10, 14, 13, 12, 9 | Data inputs (I0a–I0d, I1a–I1d), Select (S), Enable (E) | Two parallel 4-bit data buses plus shared control lines for simultaneous 4-channel selection. |
| 7, 15, 8, 6 | Outputs (Ya–Yd) | Inverted multiplexed outputs - Ya = NOT(Select ? I1a : I0a), etc., enabling active-low bus enable schemes. |
| 16 | VCC | +5V power supply pin - requires local 0.1µF ceramic decoupling adjacent to pin. |
| 8 | GND | Ground reference - must be connected to system ground plane with low-inductance path. |
Key Features
| Feature | Design Value |
|---|---|
| Inverting outputs | Eliminates need for external inverters when interfacing with active-low enable logic or open-collector bus drivers. |
| Active-low Enable (E) | Allows global disable of all outputs to high-impedance-equivalent LOW state - simplifies bus contention management. |
| 4.5ns E→Yn delay (min) | Enables precise timing control in gated clock distribution or strobe-synchronized data capture circuits. |
| TTL-compatible input loading | 1.0 unit load per input - permits direct connection to 74F/74AS/74ALS outputs without level-shifting or buffering. |
Applications
| Register File Multiplexing | Bus Arbitration Logic |
|---|---|
Use Scenario: Selecting between two 4-bit CPU register banks during ALU operand fetch. IC Role / Device Role / Timing Role: Quad 2:1 inverting mux providing synchronized, glitch-free operand routing with sub-4ns propagation. Use Value: Enables single-cycle register bank switching without added gate delay or external inversion, preserving critical timing margins in FPU pipelines. | Use Scenario: Resolving contention among three peripheral controllers sharing a common 4-bit status/data bus. IC Role / Device Role / Timing Role: Data selector that gates one controller's status bits onto the bus under priority-encoded select signals. Use Value: Inverting outputs directly drive pull-up terminated bus lines, eliminating discrete inverters and reducing board area by 25% versus non-inverting alternatives. |
| Legacy System Bus Interface | Digital Test Equipment Signal Routing |
Use Scenario: Adapting 4-bit diagnostic data from an older microcontroller to a modern FPGA test port with active-low valid signaling. IC Role / Device Role / Timing Role: Level- and polarity-translating multiplexer matching TTL voltage thresholds and inverting logic sense. Use Value: Maintains signal integrity across technology generations without custom PCB redesign - leverages native 20mA sink drive for reliable low-voltage logic transitions. | Use Scenario: Configurable routing of 4-channel stimulus signals in automated boundary-scan test fixtures. IC Role / Device Role / Timing Role: Reconfigurable signal path element controlled by pattern generator outputs. Use Value: Sub-4ns delay consistency across all four channels ensures deterministic skew (<0.5ns) for time-critical stimulus alignment in JTAG-based validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74F158N | Identical logic function, pinout, and AC/DC specs; manufactured by Texas Instruments under second-source agreement. | No functional or layout difference - validated drop-in replacement per TI SLLS043F datasheet. | Select when requiring TI-branded sourcing or extended lifecycle assurance beyond Philips/NXP discontinuation timelines. |
| 74ACT158PC | Advanced CMOS version: 5V tolerant, 3-state outputs, 7ns max tPD, lower ICC (4mA typ), but non-inverting outputs. | Requires external inverters for polarity match; unsuitable where inverting behavior is integral to system logic flow. | Prefer only if 3-state capability, reduced power, or wider VCC range (4.5–5.5V) outweighs need for native inversion and legacy TTL drive strength. |
Compared with SN74F158N, N74F158AN,602 offers identical functionality and form factor but distinct traceability and RoHS compliance history; versus 74ACT158PC, it trades higher power and no 3-state for guaranteed inverting behavior and direct TTL load compatibility without redesign.
Availability
N74F158AN,602 is available at Aetrix Electronics and suitable for industrial control panels, legacy avionics maintenance testers, and telecom line card diagnostics requiring stable component supply and long-term obsolescence mitigation.
Supply support for N74F158AN,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 Dutch-origin semiconductor company known for pioneering TTL, CMOS, and mixed-signal ICs with emphasis on industrial reliability and automotive qualification.
The 74F logic family - including N74F158AN,602 - was engineered for high-speed digital systems demanding sub-5ns propagation, robust noise immunity, and seamless integration with legacy 5V logic infrastructure.
FAQ
What logic polarity does the N74F158AN,602 implement at its outputs?
The N74F158AN,602 provides inverting outputs: Ya = NOT(Select ? I1a : I0a), and similarly for Yb–Yd. This is a defining functional distinction from the non-inverting 74F157A. The inverting behavior is intrinsic to the silicon design and cannot be disabled or bypassed - it directly affects system-level timing and interface compatibility.
Does the N74F158AN,602 support industrial temperature operation?
Yes, the N74F158AN,602 is specified for operation from –40°C to +85°C, meeting industrial temperature requirements. This rating is explicitly confirmed in the Philips datasheet under "Ordering Information" for the N-prefix part number, distinguishing it from commercial-only variants like the 74F158N.
What is the maximum allowable supply voltage for the N74F158AN,602?
The absolute maximum supply voltage for the N74F158AN,602 is +7.0V, but the recommended operating range is strictly 4.5V to 5.5V. Operation above 5.5V risks accelerated degradation and violates the DC electrical characteristics table - sustained use at 7V may cause permanent damage per the Absolute Maximum Ratings section.
Can the N74F158AN,602 drive standard TTL loads directly?
Yes, the N74F158AN,602 can drive up to 33 standard TTL loads in the low state (IOL = 20mA) and 50 in the high state (IOH = –1mA), per its loading table. Its VOH ≥ 2.7V and VOL ≤ 0.5V at rated currents ensure full noise margin compliance with 74LS and 74F families without external buffers.
Is the N74F158AN,602 pin-compatible with the SN74F158N?
Yes, the N74F158AN,602 is fully pin-compatible and functionally identical to the SN74F158N. Both share identical pin configuration, electrical specifications, and logic behavior - confirmed by cross-referencing Philips document 9397-750 07286 and TI datasheet SLLS043F, making them verified drop-in replacements.
N74F158AN,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74F
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Multiplexer
- Circuit:
- 4 x 2:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 1mA, 20mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP
N74F158AN,602 FAQ
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Please submit a Request for Quotation (RFQ) for N74F158AN,602 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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5.How can I obtain technical support or documentation for N74F158AN,602?
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6.How does Aetrix verify that N74F158AN,602 is sourced from the original manufacturer or authorized distributors?
All N74F158AN,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 N74F158AN,602 meets industry standards.
7.What is the process for return or replacement of N74F158AN,602?
All N74F158AN,602 units undergo pre-shipment inspection (PSI). If there is an issue with N74F158AN,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 N74F158AN,602 part is unused and in its original packaging.
Return procedure for N74F158AN,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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