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Texas Instruments CD74AC151M96
- Part No.:
- CD74AC151M96
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74AC151M96.pdf
- Description:
- IC MULTIPLEXER 1 X 8:1 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,328
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Product details
Overview
CD74AC151M96 from Texas Instruments is a high-speed CMOS 8-line to 1-line data selector/multiplexer with balanced push-pull outputs, ±24mA drive capability, and 1.5V–5.5V supply operation. It features complementary Y and W outputs, active-low strobe (G), and binary address decoding (A/B/C) for routing one of eight digital inputs in industrial control logic, serial data conversion, and Boolean function generation.
For engineers reviewing the CD74AC151M96 datasheet, CD74AC151M96 pinout, CD74AC151M96 application, or CD74AC151M96 equivalent, this page delivers verified electrical specs, package mapping to SOIC-16, functional mode truth table, thermal resistance (119.9°C/W), and real-world design guidance for multiplexer-based signal routing and logic-level translation.
Technical Context
The CD74AC151M96 implements asynchronous 8:1 multiplexing using silicon-gate CMOS technology. Its Y output mirrors the selected D0–D7 input per A/B/C address bits, while W provides the logical inverse - enabling simultaneous true/complement signal routing without external inverters.
Strobe (G) forces Y low and W high when high, providing hardware-level enable/disable control independent of address state. All inputs are standard CMOS with ≤10pF capacitance and require fast transitions (≤20 ns/V at 5.5V) to prevent oscillation or excessive power draw.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.5V to 5.5V - supports mixed-voltage system interfacing (e.g., 3.3V logic driving 5V loads) |
| Output Drive | ±24mA - drives 15 F-type TTL loads directly; enables fanout without buffers in legacy systems |
| Propagation Delay | 3.4ns (tPHL, VCC=5V) - meets timing-critical data routing in <20MHz digital control loops |
| Input Thresholds | VIH = 3.85V, VIL = 1.65V @ VCC=5.5V - ensures noise margin >30% of supply for robust operation |
| Power Dissipation Cap. | 120pF - used to calculate dynamic power (P = Cpd × V² × f); critical for thermal budgeting at 10MHz+ switching |
| ESD Rating | ±2000V HBM - exceeds JEDEC JESD22-A114 requirement for handling in non-EPA environments |
| Operating Temp. | -55°C to 125°C - qualified for automotive under-hood and industrial motor-control applications |
Pinout & Package
CD74AC151M96 is supplied in a 16-pin SOIC (D) package measuring 9.90mm × 6.00mm (body: 9.90mm × 3.90mm), with gull-wing leads and standard JEDEC MO-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 12–15 (D0–D7) | Data Inputs | Eight independent digital inputs; selected by A/B/C address bits; high-impedance CMOS with ≤10pF loading |
| 5 (Y) | True Output | Active-high selected data path; drives loads up to 24mA sink/source; complements W output |
| 6 (W) | Inverted Output | Logic complement of Y; eliminates need for external inverter in differential signaling or parity circuits |
| 7 (G) | Strobe Input | Active-high enable; overrides address selection to force Y=L/W=H - used for bus arbitration or reset synchronization |
| 8 (GND) | Ground Reference | Primary return path for all I/O and supply currents; must be low-impedance to maintain VOL ≤0.36V @ 24mA |
| 9–11 (C, B, A) | Address Select | Binary-coded 3-bit select lines (C=MSB); determine which D0–D7 feeds Y/W; no internal pull-ups |
| 16 (VCC) | Power Supply | Single positive rail (1.5–5.5V); requires local 0.1μF ceramic decoupling placed ≤2mm from pin per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| SCR-latchup-resistant process | Prevents destructive latch-up during transient overvoltage events - critical for industrial PLC I/O modules |
| Balanced noise immunity | 30% of VCC threshold margin - sustains reliable operation in noisy 24V DC control cabinets |
| Asynchronous operation | No clock required; output updates within nanoseconds of address or input change - ideal for real-time sensor muxing |
| Complementary outputs (Y/W) | Eliminates external inverter in applications requiring both true and complement signals (e.g., differential bus drivers) |
| Wide temperature range | -55°C to +125°C operation - validated for engine control units and power converter gate drivers |
Applications
| Industrial PLC I/O Expansion | Digital Audio Source Selection |
|---|---|
Use Scenario: Multiplexing 8 analog sensor channels into a single ADC input on a programmable logic controller backplane. IC Role / Device Role / Timing Role: Data selector routing discrete voltage levels from thermocouples, pressure transducers, and flow meters based on CPU address bus. Use Value: Reduces component count vs. discrete analog switches; maintains 12-bit linearity via low-impedance CMOS outputs and <13.5ns propagation delay. | Use Scenario: Switching between eight digital audio sources (S/PDIF, I²S, USB DAC outputs) in a pro-audio mixer's input stage. IC Role / Device Role / Timing Role: Synchronous data routing under microcontroller control; strobe (G) used for glitch-free mute during source transitions. Use Value: ±24mA drive supports 50Ω transmission lines; complementary Y/W outputs feed balanced receiver inputs without added logic. |
| Automotive Body Control Module | Legacy System Bus Interface |
Use Scenario: Consolidating status signals from 8 door-lock actuators, window motors, and mirror controls into a CAN gateway MCU. IC Role / Device Role / Timing Role: Digital multiplexer feeding GPIO interrupt pins; G input synchronized to CAN frame boundaries for deterministic sampling. Use Value: -55°C to +125°C rating ensures reliability in cabin electronics; SCR-latchup resistance prevents failure during load-dump transients. | Use Scenario: Adapting 8-bit parallel data from an obsolete 8051-based subsystem to a modern ARM processor's 16-bit data bus. IC Role / Device Role / Timing Role: Parallel-to-serial converter generating time-multiplexed data stream; A/B/C driven by counter IC for automatic scanning. Use Value: 1.5V–5.5V operation bridges 3.3V MCU and 5V legacy peripherals; 24mA drive sinks TTL loads directly without level-shifter ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AC151N | Same AC logic family, identical pinout and specs; PDIP-16 package instead of SOIC-16 | Through-hole assembly only; higher thermal resistance (67°C/W vs. 119.9°C/W) limits high-density PCB use | Select for prototyping or legacy through-hole production where reflow compatibility is not required |
| CD74HC151E | HC family: slower (24ns max @ 5V), lower drive (±5.2mA), narrower VCC range (2–6V) | Lower power consumption but insufficient drive for TTL fanout; unsuitable for noise-immune industrial environments | Choose only for battery-powered, low-speed applications where 1.5V operation and 24mA drive are unnecessary |
Compared with SN74AC151N, CD74AC151M96 offers surface-mount reliability and better thermal performance; versus CD74HC151E, it delivers 4.6× higher output current and 1.5V minimum operation - essential for mixed-voltage industrial designs.
Availability
CD74AC151M96 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and legacy system integration requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD74AC151M96 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 for industrial, automotive, and communications markets.
The CD74AC151M96 belongs to TI's advanced CMOS logic portfolio, designed specifically for high-reliability data routing in electrically noisy, thermally demanding environments where speed, drive strength, and latch-up immunity are critical.
FAQ
What is the maximum operating frequency supported by CD74AC151M96?
The CD74AC151M96 does not have a clock input and operates asynchronously, so it has no defined maximum frequency. Its usable data rate depends on propagation delay and load capacitance. With a 50pF load and 5V supply, tPHL/tPLH is 12.3ns (max), supporting clean signal routing up to ~40MHz in well-designed layouts. For CD74AC151M96, timing margins must be verified per application using the switching characteristics tables in the datasheet.
Does CD74AC151M96 require external pull-up or pull-down resistors on its address inputs?
No, CD74AC151M96 address inputs (A, B, C) do not include internal termination. However, TI mandates that all unused CMOS inputs be actively held at VCC or GND to prevent floating states that cause oscillation and excess power draw. For CD74AC151M96, if any address line is left unconnected during operation, a 10kΩ pull-up or pull-down resistor is recommended per TI application note SCBA004.
Can CD74AC151M96 drive a 50Ω transmission line directly?
Yes, CD74AC151M96 can drive a 50Ω transmission line directly when configured for 75Ω capability at 125°C (per datasheet footnote in Section 4.5). At 24mA output current and 5V supply, it achieves VOH ≥3.94V and VOL ≤0.36V, satisfying 50Ω line requirements for short-run interconnects (<12cm) with proper source termination. This capability is confirmed for CD74AC151M96 in the Electrical Characteristics table under IOL/IOH test conditions.
What is the purpose of the W output on CD74AC151M96?
The W output on CD74AC151M96 is the logical inverse of the Y output - when Y = D3, W = NOT(D3). This eliminates the need for an external inverter in applications requiring both true and complement signals, such as differential bus drivers, parity generation, or dual-edge-triggered logic. The relationship holds across all operating conditions and is guaranteed in the Function Table of the CD74AC151M96 datasheet.
Is CD74AC151M96 compatible with 3.3V-only systems?
Yes, CD74AC151M96 is fully compatible with 3.3V-only systems. Its recommended operating range (1.5V–5.5V) includes 3.3V ±0.3V, and switching characteristics are explicitly characterized at 3.3V (Section 4.7). At 3.3V, tPHL/tPLH is 17.1ns (max), VIH = 2.1V, and VIL = 0.9V - providing >0.6V noise margin. All parameters for CD74AC151M96 are validated across temperature and voltage per TI's production test flow.
CD74AC151M96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AC
- 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:
- 24mA, 24mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 1.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
CD74AC151M96 FAQ
1.How can I place an order for CD74AC151M96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74AC151M96 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 CD74AC151M96 reliable?
The price and inventory of CD74AC151M96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74AC151M96 is usually 5 days.
3.What payment methods are accepted for CD74AC151M96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74AC151M96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74AC151M96?
CD74AC151M96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74AC151M96 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 CD74AC151M96?
For technical support, including CD74AC151M96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74AC151M96 requirements.
6.How does Aetrix verify that CD74AC151M96 is sourced from the original manufacturer or authorized distributors?
All CD74AC151M96 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 CD74AC151M96 meets industry standards.
7.What is the process for return or replacement of CD74AC151M96?
All CD74AC151M96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74AC151M96, 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 CD74AC151M96 part is unused and in its original packaging.
Return procedure for CD74AC151M96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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