My Inquiry
My Account
Texas Instruments CD74HCT151M96
- Part No.:
- CD74HCT151M96
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74HCT151M96.pdf
- Description:
- IC MULTIPLEXER 1 X 8:1 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,257
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CD74HCT151M96 from Texas Instruments is a high-speed CMOS 8-input digital multiplexer with complementary non-inverting (Y) and inverting (W) outputs, active-low enable (G), and three binary select inputs (A, B, C). It operates from 4.5 V to 5.5 V, delivers propagation delays as low as 12 ns (enable-to-Y, 25°C, CL = 50 pF), supports –55°C to 125°C industrial/military temperature range, and is pin-compatible with LSTTL logic for direct interface in legacy systems.
For engineers reviewing the CD74HCT151M96 datasheet, CD74HCT151M96 pinout, CD74HCT151M96 application, or CD74HCT151M96 equivalent, this device is selected for data routing in programmable logic controllers, test instrumentation signal switching, and digital system address/data path selection where TTL-compatible input thresholds, dual-output polarity, and wide-temperature reliability are required.
Technical Context
The CD74HCT151M96 implements a single 8:1 multiplexer function using standard CMOS process technology with TTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V at VCC = 4.5–5.5 V). Its functional modes are fully defined by truth table entries covering all eight select combinations (CBA = 000–111) plus active-low enable control - enabling deterministic channel selection without metastability concerns.
It features buffered inputs and outputs, balanced propagation delay (tpd ≤ 18 ns max across all paths at 25°C), and low dynamic power consumption (CPD = 58 pF). The device exhibits high noise immunity (NIL/NIH = 30% of VCC) and fanout capability of 10 LSTTL loads on standard outputs, making it suitable for driving multiple downstream logic stages in mixed-technology systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures direct drop-in replacement for 5 V LSTTL systems without level-shifting. |
| Propagation Delay (G → Y) | 12 ns (typ), 44 ns (max, –55°C to 125°C) - enables reliable timing in sub-20 MHz digital control loops. |
| Input Thresholds | VIL ≤ 0.8 V, VIH ≥ 2.0 V - guarantees robust interfacing with standard TTL outputs without external biasing. |
| Output Drive | ±4 mA (IOH/IOL) - sufficient to drive 10 LSTTL loads or directly interface with 74-series logic families. |
| Operating Temperature | –55°C to 125°C - qualified for aerospace, defense, and under-hood automotive applications per MIL-PRF-38535. |
| Power Dissipation Cap. | CPD = 58 pF - allows accurate dynamic power estimation (PD = VCC² × f × (CPD + CL)) for thermal design. |
| Input Capacitance | CIN = 10 pF - minimizes loading on upstream drivers and preserves signal integrity in high-speed routing. |
Pinout & Package
CD74HCT151M96 is housed in a 16-pin SOIC (D) package measuring 9.90 mm × 3.90 mm with gull-wing leads, RoHS-compliant NiPdAu/Sn lead finish, and moisture sensitivity level (MSL) 1 (unlimited floor life at ≤30°C/60% RH).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G) | Active-low enable | Disables all outputs (Y = high-impedance, W = high-impedance) when logic high; required for bus isolation. |
| 2–4 (A, B, C) | Binary select inputs | 3-bit address determining which of D0–D7 is routed to Y/W; LSB = A, MSB = C per standard mapping. |
| 5–12 (D0–D7) | Data inputs | Eight independent digital inputs; only one passes through to outputs based on A/B/C state. |
| 13 (W) | Inverting output | Complement of selected input (W = NOT(Dx)); eliminates need for external inverters in differential routing. |
| 14 (Y) | Non-inverting output | Direct copy of selected input (Y = Dx); used for standard data forwarding or logic-level translation. |
| 15 (VCC) | Positive supply | 4.5–5.5 V power rail; requires local 0.1 µF ceramic bypass capacitor placed within 5 mm of pin. |
| 16 (GND) | Ground reference | Return path for all internal logic and I/O; must be connected to low-impedance system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary Y/W outputs | Eliminates external inverter requirement in applications needing both true and complement signals (e.g., latch enable/control). |
| Buffered I/O structure | Ensures consistent drive strength and noise rejection across all pins, critical for stable operation in noisy industrial environments. |
| TTL-compatible input thresholds | Enables direct connection to legacy 74LS/74ALS outputs without pull-ups or level translators, reducing BOM count. |
| Wide temperature range | Validated operation from –55°C to 125°C supports deployment in extended-range military, avionics, and downhole equipment. |
| Low ICC quiescent current | ICC ≤ 160 µA (max, –55°C to 125°C) minimizes standby power in battery-backed or energy-constrained systems. |
Applications
| Programmable Logic Controller (PLC) I/O Expansion | Digital Test Equipment Signal Routing |
|---|---|
|
Use Scenario: Multiplexing analog-to-digital converter (ADC) channel selection or discrete sensor inputs across multiple modules in modular PLC backplanes. IC Role / Device Role / Timing Role: Data path selector that routes up to eight field inputs to a shared processing bus under microcontroller command via A/B/C and G. Use Value: Reduces PCB interconnect complexity and eliminates mechanical switch banks while maintaining deterministic <44 ns selection latency. |
Use Scenario: Switching between calibration references, stimulus sources, or measurement channels in automated test equipment (ATE) mainframes. IC Role / Device Role / Timing Role: Precision signal gate controlling path integrity during high-speed parametric testing sequences. Use Value: Dual Y/W outputs allow simultaneous assertion of true and inverted strobes to synchronize capture latches and reset logic in test sequencers. |
| Industrial Communication Interface | Legacy System Bus Arbitration |
|
Use Scenario: Selecting between RS-485 transceiver pairs or CAN controller interfaces in multi-protocol gateway designs. IC Role / Device Role / Timing Role: Protocol-select mux enabling single MCU UART to serve multiple physical layer devices. Use Value: TTL-compatible inputs ensure clean edge detection from microcontroller GPIOs; wide temp range supports uncontrolled cabinet environments. |
Use Scenario: Arbitrating access to shared memory or peripheral buses among multiple Z80/8085-based subsystems in retro-computing or embedded instrumentation. IC Role / Device Role / Timing Role: Address/data bus selector resolving contention between co-located processors or DMA controllers. Use Value: Propagation delay consistency (≤5 ns skew between Y/W) prevents setup/hold violations during fast bus cycles up to 20 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-input multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT151DR | Same logic function, identical pinout, but TI's newer generation with tighter AC specs (tpd = 11 ns typ, G→Y) and improved ESD rating (±4 kV HBM). | Preferred for new designs requiring margin in high-noise factory-floor environments or higher clock rates (>22 MHz). | Select SN74HCT151DR when upgrading for enhanced speed/stability; CD74HCT151M96 remains optimal for cost-sensitive, drop-in replacements in existing SOIC footprints. |
| MC74HC151ADR2G | Pin-compatible HC-family variant (2–6 V operation), lacks TTL input compatibility - requires VIH ≥ 3.15 V at VCC = 4.5 V. | Suitable only in pure-CMOS systems; incompatible with legacy TTL outputs without level shifting. | Choose MC74HC151ADR2G only if supply voltage flexibility (e.g., 3.3 V operation) is prioritized over TTL interoperability. |
Compared with SN74HCT151DR and MC74HC151ADR2G, CD74HCT151M96 uniquely balances proven military-grade temperature resilience, guaranteed TTL input compatibility, and mature supply-chain availability - making it the preferred choice for long-lifecycle industrial control upgrades where validation effort must be minimized.
Availability
CD74HCT151M96 is available at Aetrix Electronics and suitable for programmable logic controllers, automated test equipment, industrial communication gateways, and legacy bus arbitration systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for CD74HCT151M96 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 50 years of innovation in high-reliability logic ICs.
CD74HCT151M96 belongs to TI's CD74HCT logic family, designed specifically for seamless integration into mixed-technology systems where TTL-level signal compatibility, wide operating temperature, and long-term manufacturability are mandatory.
FAQ
What is the maximum clock frequency supported by CD74HCT151M96 in a data routing application?
The CD74HCT151M96 does not operate on a clock signal - it is a combinational logic device whose output responds asynchronously to input changes. Its usable maximum data rate is determined by propagation delay: with tpd(max) = 44 ns (–55°C to 125°C), it reliably supports input transition rates up to approximately 20 MHz in stable routing applications. For CD74HCT151M96, timing margins must be verified against system-specific setup/hold requirements at the destination register.
Can CD74HCT151M96 be used with a 3.3 V microcontroller GPIO driving its select inputs?
No - CD74HCT151M96 requires VIH ≥ 2.0 V (min) and VIL ≤ 0.8 V (max) for valid TTL-compatible logic levels, but its supply must be 4.5–5.5 V. A 3.3 V GPIO cannot guarantee VIH ≥ 2.0 V under worst-case conditions (e.g., VCC = 4.5 V, temperature extremes). To interface safely, use a level translator such as TXS0102 or add a pull-up to 5 V with series resistor; direct connection risks indeterminate operation of CD74HCT151M96.
Does CD74HCT151M96 support hot insertion or live insertion into a powered backplane?
No - CD74HCT151M96 is not hot-swap rated. Its absolute maximum ratings specify no tolerance for VCC applied before GND or for input voltages exceeding VCC + 0.5 V. Inserting CD74HCT151M96 into a live 5 V backplane risks latch-up or permanent damage due to supply sequencing violations and I/O overvoltage. Always power-cycle the slot or use dedicated hot-swap controllers when integrating CD74HCT151M96 into modular systems.
How does the dual-output (Y and W) feature of CD74HCT151M96 reduce system component count?
The complementary Y (non-inverting) and W (inverting) outputs of CD74HCT151M96 eliminate the need for an external inverter when both polarities of a selected data channel are required - for example, in enabling complementary clock edges to dual-edge-triggered latches or generating active-high/active-low control signals from one source. This reduces BOM cost, board area, and signal path skew, directly improving timing predictability in CD74HCT151M96-based routing architectures.
Is CD74HCT151M96 suitable for use in safety-critical systems such as railway signaling or medical diagnostics?
CD74HCT151M96 is not certified to IEC 61508 (SIL), ISO 26262 (ASIL), or IEC 62304. While it meets MIL-PRF-38535 Class B screening for high-reliability applications, formal safety certification requires system-level analysis, fault injection testing, and documentation not provided by TI for this component. For CD74HCT151M96 to be deployed in safety-critical functions, full FMEDA, diagnostic coverage assessment, and hardware qualification per applicable standards must be performed by the end-system integrator.
CD74HCT151M96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HCT
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
CD74HCT151M96 FAQ
1.How can I place an order for CD74HCT151M96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HCT151M96 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 CD74HCT151M96 reliable?
The price and inventory of CD74HCT151M96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HCT151M96 is usually 5 days.
3.What payment methods are accepted for CD74HCT151M96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HCT151M96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74HCT151M96?
CD74HCT151M96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HCT151M96 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 CD74HCT151M96?
For technical support, including CD74HCT151M96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HCT151M96 requirements.
6.How does Aetrix verify that CD74HCT151M96 is sourced from the original manufacturer or authorized distributors?
All CD74HCT151M96 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 CD74HCT151M96 meets industry standards.
7.What is the process for return or replacement of CD74HCT151M96?
All CD74HCT151M96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74HCT151M96, 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 CD74HCT151M96 part is unused and in its original packaging.
Return procedure for CD74HCT151M96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CD74HCT151M96 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…
