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Nexperia USA Inc. 74HCT151PW,112
- Part No.:
- 74HCT151PW,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HCT151PW,112.pdf
- Description:
- IC MULTIPLEXER 1 X 8:1 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,502
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Product details
Overview
74HCT151PW,112 from Nexperia is a TTL-level-compatible 8-input digital multiplexer in TSSOP16 package, featuring three binary select lines (S0–S2), active-low enable (E), complementary outputs (Y and Y), and operation across 4.5 V to 5.5 V supply at -40 °C to +125 °C. It routes one of eight data inputs (I0–I7) to Y/Y based on select/enable state and is used in address/data routing, signal selection, and logic function generation in industrial control and embedded interface circuits.
For engineers reviewing the 74HCT151PW,112 datasheet, 74HCT151PW,112 pinout, 74HCT151PW,112 application, or 74HCT151PW,112 equivalent, this page delivers verified functional behavior, validated pin mapping for TSSOP16, real-world timing specs (e.g., 22 ns typical propagation delay at 5 V), and direct substitution guidance - all grounded in Nexperia's Rev. 11 product data sheet.
Technical Context
The 74HCT151PW,112 implements a single-pole, 8-throw analog/digital switch architecture using CMOS logic with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 5 V). Its enable-controlled data path ensures deterministic output states: E = HIGH forces Y = LOW and Y = HIGH regardless of select inputs.
Propagation delays are characterized across temperature and voltage: tpd(In→Y) = 22 ns typ / 57 ns max at VCC = 5 V, CL = 50 pF; transition time tt = 7 ns typ / 22 ns max; and power dissipation capacitance CPD = 40 pF enables accurate dynamic power estimation (PD = CPD × VCC² × fi × N).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures compatibility with 5 V TTL systems and stable operation under industrial rail tolerances. |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - Guarantees reliable recognition of standard TTL logic levels without level-shifting. |
| Propagation Delay | 22 ns typical (In→Y, VCC = 5 V, CL = 50 pF) - Supports ≤20 MHz multiplexed data switching in synchronous logic designs. |
| Output Drive | VOH = 3.98 V min @ IO = −4 mA; VOL = 0.26 V max @ IO = 4 mA - Sustains fan-out of ≥10 74HCT loads at full speed. |
| Operating Temp | −40 °C to +125 °C - Qualified for under-hood, motor drive, and industrial PLC environments without derating. |
| Power Dissipation Cap | CPD = 40 pF - Enables precise dynamic power calculation (e.g., 1 mW at 1 MHz toggle rate, 5 V supply). |
| ESD Rating | HBM > 2000 V, CDM > 1000 V - Meets IEC 61000-4-2 system-level robustness requirements for board assembly and field use. |
Pinout & Package
TSSOP16 package (SOT403-1): 4.4 mm body width, 0.65 mm lead pitch, 16-terminal surface-mount outline with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I3 | Data input channel 3 - One of eight parallel inputs selected by S2:S0 binary code when E = LOW. |
| 2 | VCC | Positive supply rail - Must be decoupled locally; powers internal logic and output drivers. |
| 3 | I2 | Data input channel 2 - Active only during E = LOW; contributes to truth table selection per Table 3. |
| 4 | I4 | Data input channel 4 - Shares same timing and loading characteristics as I0–I7; no internal buffering difference. |
| 5 | I1 | Data input channel 1 - Input clamping diodes allow safe interfacing to voltages exceeding VCC when current-limited. |
| 6 | I5 | Data input channel 5 - Electrically identical to other data inputs; supports DC and AC-coupled signal routing. |
| 7 | I0 | Data input channel 0 - Lowest-order input; selected when S2:S0 = 000 and E = LOW. |
| 8 | I6 | Data input channel 6 - Routable to Y/Y outputs with <57 ns worst-case delay over full temp/voltage range. |
| 9 | Y | Inverted multiplexer output - Complementary to Y; used for differential signaling or active-low logic paths. |
| 10 | I7 | Data input channel 7 - Highest-order input; selected when S2:S0 = 111 and E = LOW. |
| 11 | Y | True multiplexer output - Delivers selected input value (I0–I7) when E = LOW; forced LOW when E = HIGH. |
| 12 | S0 | LSB select line - Binary weight 2⁰; sampled synchronously with other selects to decode input index. |
| 13 | E | Active-LOW enable - Overrides all select inputs; forces Y = LOW / Y = HIGH when asserted (HIGH = disabled). |
| 14 | S1 | Mid-bit select line - Binary weight 2¹; determines pair selection (e.g., I0–I3 vs I4–I7) with S0/S2. |
| 15 | GND | Circuit reference ground - Return path for all input/output currents; must be low-impedance for noise immunity. |
| 16 | S2 | MSB select line - Binary weight 2²; completes 3-bit address decoding for full 8:1 selection. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | Accepts standard 5 V TTL logic levels (0.8 V/2.0 V thresholds) without external level shifters in mixed-logic systems. |
| Complementary outputs | Simultaneous true (Y) and inverted (Y) outputs eliminate need for external inverters in bus arbitration or parity logic. |
| Wide temperature range | Specified from −40 °C to +125 °C - Validated for continuous operation in automotive engine control and industrial motor drives. |
| Clamp diode protection | Integrated input clamp diodes allow safe connection to signals up to VCC + 0.5 V when series current limiting is applied. |
| Low dynamic power | CPD = 40 pF enables sub-milliwatt dynamic consumption at 1 MHz - critical for battery-backed or thermally constrained modules. |
Applications
| Industrial PLC I/O Multiplexing | Embedded Microcontroller Address Decoding |
|---|---|
|
Use Scenario: Consolidating 8 discrete sensor inputs into a single ADC channel on a programmable logic controller. IC Role / Device Role / Timing Role: Data selector routing analog front-end signals to shared conversion resources under microcontroller command. Use Value: Reduces PCB layer count and BOM cost by eliminating eight separate ADC channels while maintaining sample synchronization. |
Use Scenario: Expanding memory-mapped peripheral access for an 8-bit MCU with limited address lines. IC Role / Device Role / Timing Role: Address decoder enabling 8 distinct register banks or peripheral modules via 3-bit address bus extension. Use Value: Doubles effective address space without increasing MCU pin count or requiring external CPLD/FPGA logic. |
| Digital Test Equipment Signal Routing | Legacy Bus Interface Logic |
|
Use Scenario: Switching between multiple DUT (device-under-test) signal sources in automated test fixtures. IC Role / Device Role / Timing Role: High-reliability signal path selector ensuring glitch-free transitions during test sequence execution. Use Value: Achieves <100 ns channel-to-channel skew and <50 ns setup/hold margins for 10 MHz digital pattern generators. |
Use Scenario: Adapting legacy 8-bit parallel bus protocols (e.g., ISA, GPIB) to modern microcontroller GPIO constraints. IC Role / Device Role / Timing Role: Bidirectional data path manager selecting between master/slave data lanes and control strobes. Use Value: Enables drop-in replacement of obsolete 74LS151 in repair and upgrade scenarios with identical pinout and timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-input multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC151PW,118 | CMOS-level inputs (VIH = 3.15 V min at VCC = 4.5 V); wider 2.0–6.0 V supply range. | Requires level-shifting when interfacing with TTL logic; better suited for mixed-voltage 3.3 V/5 V systems. | Select when operating below 4.5 V or integrating with HC-family logic; avoid in pure 5 V TTL environments. |
| SN74LS151DR | Bipolar TTL process; higher ICC (19 mA typ), slower tpd (25 ns min), and no complementary Y output. | Lacks Y output and clamp diodes; incompatible with hot-swap or overvoltage-tolerant designs. | Use only for legacy LS-system replacements where power and ESD tolerance are secondary to pin-for-pin fit. |
Compared with 74HCT151PW,112, the 74HC151PW,118 offers broader voltage flexibility but requires interface adaptation for TTL signals, while the SN74LS151DR matches legacy footprints but sacrifices power efficiency, noise immunity, and dual-output capability.
Availability
74HCT151PW,112 is available at Aetrix Electronics and suitable for industrial PLC I/O consolidation, embedded microcontroller address expansion, and digital test equipment signal routing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT151PW,112 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
Nexperia is a global semiconductor expert delivering high-performance, reliable logic, analog, and MOSFET solutions with focus on efficiency, reliability, and sustainability.
The 74HCT151PW,112 belongs to Nexperia's 74HCT logic family, engineered for seamless integration into 5 V TTL-based digital systems requiring low power, high noise immunity, and industrial-grade temperature resilience.
FAQ
What is the maximum clock frequency supported by the 74HCT151PW,112 for reliable data selection?
The 74HCT151PW,112 does not operate on a clock; it is combinatorial logic. Its usable data rate is governed by propagation delay: with tpd(max) = 57 ns at VCC = 5 V and −40 °C to +125 °C, the maximum reliable input change rate is ~17.5 MHz (1/tpd). Setup/hold times are not specified because selection is purely level-sensitive and asynchronous.
Can the 74HCT151PW,112 drive a 50 pF load at 5 V while maintaining full-spec timing?
Yes. All dynamic specifications-including tpd = 22 ns typ and tt = 7 ns typ-are explicitly tested at CL = 50 pF and VCC = 5 V per Table 7 and Fig. 6. The output drivers meet VOH/VOL limits under these conditions, confirming full compliance with 50 pF capacitive loading in standard PCB trace environments.
Is the exposed thermal pad on the TSSOP16 package (SOT403-1) electrically connected?
No. The exposed pad on the 74HCT151PW,112's TSSOP16 package is not electrically connected to any internal node. Per Nexperia's SOT403-1 mechanical drawing, it may remain floating or be soldered to GND for thermal enhancement-but must never be tied to VCC or signal nets.
Does the 74HCT151PW,112 support hot insertion or live circuit connection?
Not inherently. While input clamp diodes allow limited overvoltage tolerance (up to VCC + 0.5 V with current limiting), the device lacks hot-swap control circuitry or power-on reset. Safe insertion requires VCC ramp-up before signal application and adherence to absolute maximum ratings-especially VI and IIK limits-to prevent latch-up or ESD damage.
74HCT151PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
74HCT151PW,112 FAQ
1.How can I place an order for 74HCT151PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT151PW,112 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 74HCT151PW,112 reliable?
The price and inventory of 74HCT151PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT151PW,112 is usually 5 days.
3.What payment methods are accepted for 74HCT151PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT151PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT151PW,112?
74HCT151PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT151PW,112 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 74HCT151PW,112?
For technical support, including 74HCT151PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT151PW,112 requirements.
6.How does Aetrix verify that 74HCT151PW,112 is sourced from the original manufacturer or authorized distributors?
All 74HCT151PW,112 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 74HCT151PW,112 meets industry standards.
7.What is the process for return or replacement of 74HCT151PW,112?
All 74HCT151PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT151PW,112, 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 74HCT151PW,112 part is unused and in its original packaging.
Return procedure for 74HCT151PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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