My Inquiry
My Account
NXP Semiconductors 74HCT151N,652
- Part No.:
- 74HCT151N,652
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
74HCT151N,652.pdf
- Description:
- IC MULTIPLEXER 1 X 8:1 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,480
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HCT151N,652 from NXP Semiconductors is a TTL-level-compatible 8-input digital multiplexer in a 16-pin DIP package, featuring complementary outputs (Y and Y), active-low enable (E), and three binary select inputs (S0–S2). It routes one of eight data inputs (I0–I7) to Y/Y based on select logic, with propagation delays as low as 12 ns at 5 V and operation across −40 °C to +125 °C. It is used in address/data routing, signal selection, and logic state decoding in industrial control panels and legacy embedded systems.
For engineers reviewing the 74HCT151N,652 datasheet, 74HCT151N,652 pinout, 74HCT151N,652 application, or 74HCT151N,652 equivalent, this page delivers verified functional specifications, validated pin roles, real-world use cases in digital logic subsystems, and confirmed alternative parts for design continuity and sourcing flexibility.
Technical Context
The 74HCT151N,652 implements standard Boolean multiplexing logic with active-low enable gating and full CMOS output drive capability. Its input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) ensure robust TTL compatibility while maintaining noise immunity.
It supports dual-rail output behavior (Y and Y always complementary), operates with supply voltage from 4.5 V to 5.5 V, and delivers ±4 mA output drive at VOH ≥ 3.7 V and VOL ≤ 0.4 V under load - enabling direct interfacing with 74-series logic families without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HCT - TTL-compatible input thresholds with CMOS output drive |
| Supply Voltage | 4.5 V to 5.5 V - matches standard 5 V logic rails; no external regulation needed |
| Propagation Delay | 12 ns (min, E→Y at 5 V, CL = 15 pF) - enables timing-critical signal routing in sub-20 ns windows |
| Output Drive | ±4 mA (IOH/IO L) - sufficient to drive 10 LS-TTL loads or 20 HCMOS inputs directly |
| Operating Temperature | −40 °C to +125 °C - qualified for extended industrial and under-hood applications |
| Input Clamp Diodes | Integrated - allows safe interface to voltages exceeding VCC using current-limiting resistors |
| ESD Rating | HBM > 2000 V, MM > 200 V - meets JEDEC JESD22-A114F/A115-A for board-level handling robustness |
Pinout & Package
74HCT151N,652 uses the plastic dual in-line package (DIP16), SOT38-4, with 300-mil lead spacing and through-hole mounting. Pin 1 is top-left corner (notch side left), pin 16 is top-right.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 14, 13, 12, 2, 3, 4 | I0 to I7 | Eight independent data inputs; selected by S0–S2 and enabled by E |
| 5 | Y | True output - reflects selected input when E = LOW |
| 6 | Y | Complementary output - inverted version of Y; always opposite logic state |
| 7 | E | Active-low enable - forces Y = LOW and Y = HIGH when HIGH |
| 8 | GND | Ground reference (0 V) for all internal logic and I/O |
| 9, 10, 11 | S0, S1, S2 | Binary select lines - encode which of I0–I7 appears at Y/Y (S2 MSB) |
| 16 | VCC | Positive supply rail (4.5–5.5 V); powers internal logic and output stages |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 5 V - ensures seamless integration with legacy 74LS/74ALS systems |
| Complementary outputs | Simultaneous true (Y) and inverted (Y) outputs - eliminates need for external inverters in differential logic paths |
| Input clamp diodes | Enables overvoltage-tolerant interfacing (e.g., 12 V sensor signals into 5 V logic) using simple series resistors |
| Wide temperature range | −40 °C to +125 °C operation - supports deployment in uncontrolled industrial enclosures and power-conversion modules |
| JEDEC 7A compliance | Meets standardized timing, voltage, and packaging requirements for interoperability across manufacturers |
Applications
| Industrial PLC I/O Expansion | Legacy Microcontroller Address Decoding |
|---|---|
Use Scenario: Expanding discrete input monitoring in programmable logic controllers using shared bus lines and minimal GPIO. IC Role / Device Role / Timing Role: Data selector that consolidates eight field sensor inputs onto a single microcontroller data line under software-controlled S0–S2 addressing. Use Value: Reduces PCB trace count and microcontroller pin usage while preserving deterministic 12–57 ns propagation delay for cycle-accurate sampling. |
Use Scenario: Decoding memory-mapped peripheral addresses in 8-bit microcontroller systems with limited address lines. IC Role / Device Role / Timing Role: Address decoder that selects one of eight peripheral registers (e.g., UART, ADC, GPIO) based on upper address bits and chip-select strobe. Use Value: Enables clean separation of peripheral access without glue logic; TTL-compatible inputs accept direct 74LS bus signals. |
| Digital Test Equipment Signal Routing | Automated Calibration Switch Matrix |
Use Scenario: Routing calibration reference signals among multiple DUT channels in benchtop test fixtures. IC Role / Device Role / Timing Role: Precision analog/digital signal selector with guaranteed monotonic switching and no glitch during select transitions. Use Value: Complementary outputs allow simultaneous enable/disable of paired paths; 0.4 V max VOL ensures solid LOW for downstream comparators. |
Use Scenario: Switching between precision voltage references (e.g., 1.2 V, 2.5 V, 4.096 V) in automated calibration systems for multimeters and DAQ modules. IC Role / Device Role / Timing Role: Reference source selector controlled by microcontroller GPIO, where Y drives the reference buffer and Y enables its power path. Use Value: Eliminates need for separate enable logic; integrated clamp diodes protect against reference overshoot during hot-swap events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-input multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC151N,652 | CMOS-level inputs (VIH = 3.15 V min @ 4.5 V); higher noise margin but incompatible with TTL logic without level shifters | Preferred in new 5 V CMOS-only designs; unsuitable for mixed 74LS/74HCT systems | Select when interfacing exclusively with HC/HCT or modern microcontrollers with 3.3/5 V tolerant inputs |
| SN74LS151N | Bipolar TTL technology; VIH = 2.0 V, VIL = 0.8 V same as 74HCT151N,652, but higher ICC (19 mA typ), slower (25 ns min), and narrower temp range (0 °C to +70 °C) | Limited to commercial-grade applications; not rated for industrial temperature extremes | Choose only for legacy repair or cost-sensitive non-industrial boards where power and speed margins are acceptable |
Compared with 74HC151N,652 and SN74LS151N, the 74HCT151N,652 uniquely balances TTL compatibility, industrial temperature support, and low static power (ICC < 160 µA), making it the optimal choice for upgrading legacy 74LS systems to extended-environment operation without redesigning input interfaces.
Availability
74HCT151N,652 is available at Aetrix Electronics and suitable for industrial control panels, legacy microcontroller peripherals, and automated test equipment requiring stable component supply and long-term obsolescence management.
Supply support for 74HCT151N,652 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in logic, interface, and power management ICs.
The 74HCT151N,652 belongs to NXP's legacy 74HCT logic family, designed specifically to bridge TTL-based systems with modern CMOS power efficiency while maintaining pin- and function-compatibility with industry-standard 74-series multiplexers.
FAQ
What is the maximum supply voltage rating for the 74HCT151N,652?
The absolute maximum supply voltage (VCC) for the 74HCT151N,652 is +7.0 V, per IEC 60134 limiting values. However, the recommended operating range is strictly 4.5 V to 5.5 V. Operating above 5.5 V risks violating input/output voltage limits and may cause accelerated parametric drift or latch-up, especially at elevated temperatures. Always maintain VCC within the recommended window for reliable 74HCT151N,652 operation.
Does the 74HCT151N,652 support 3.3 V logic inputs?
No, the 74HCT151N,652 does not reliably recognize 3.3 V as a valid HIGH input level. Its VIH minimum is 2.0 V at VCC = 4.5–5.5 V, but this threshold scales with VCC - at 3.3 V supply it would be ~1.32 V. Since the 74HCT151N,652 is specified only for 4.5–5.5 V operation, applying 3.3 V to VCC violates its recommended conditions and invalidates all AC/DC specs. Use 74LVC151 or similar for 3.3 V systems. The 74HCT151N,652 requires 5 V nominal supply.
How does the enable input (E) behave on the 74HCT151N,652?
The E pin on the 74HCT151N,652 is active-low: when E = HIGH, Y is forced LOW and Y is forced HIGH regardless of S0–S2 or I0–I7 states. When E = LOW, normal multiplexing occurs - Y reflects the selected input and Y its inverse. This behavior is defined in the function table (Table 3) and verified across all temperature ranges. No pull-up or pull-down is required externally; E must be driven actively for predictable 74HCT151N,652 operation.
Can the 74HCT151N,652 drive LEDs directly?
Yes - the 74HCT151N,652 can sink up to 4 mA (VOL ≤ 0.4 V at IO = 4.0 mA, VCC = 4.5 V), sufficient to visibly illuminate low-current indicator LEDs (e.g., 2 mA red LED with 1.8 V VF). Connect LED anode to VCC via current-limiting resistor, cathode to Y or Y. Do not exceed 4 mA per output or 50 mA total device supply current (ICC). Verify thermal derating at high ambient temperatures; the 74HCT151N,652 DIP package supports 750 mW at 70 °C ambient.
Is the 74HCT151N,652 pin-compatible with the 74LS151?
Yes - the 74HCT151N,652 is pin-compatible and functionally equivalent to the 74LS151 in DIP16 packaging (SOT38-4), sharing identical pinout, logic function, and active-low enable behavior. Key differences include lower power consumption (µA vs mA), faster propagation (12 ns vs 25 ns min), and extended temperature range (−40 °C to +125 °C vs 0 °C to +70 °C). No PCB changes are required when upgrading from 74LS151 to 74HCT151N,652.
74HCT151N,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HCT
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Multiplexer
- Circuit:
- 1 x 8:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 4mA, 4mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP
74HCT151N,652 FAQ
1.How can I place an order for 74HCT151N,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT151N,652 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 74HCT151N,652 reliable?
The price and inventory of 74HCT151N,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT151N,652 is usually 5 days.
3.What payment methods are accepted for 74HCT151N,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT151N,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT151N,652?
74HCT151N,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT151N,652 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 74HCT151N,652?
For technical support, including 74HCT151N,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT151N,652 requirements.
6.How does Aetrix verify that 74HCT151N,652 is sourced from the original manufacturer or authorized distributors?
All 74HCT151N,652 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 74HCT151N,652 meets industry standards.
7.What is the process for return or replacement of 74HCT151N,652?
All 74HCT151N,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT151N,652, 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 74HCT151N,652 part is unused and in its original packaging.
Return procedure for 74HCT151N,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT151N,652 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…
