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Texas Instruments CD74HC154M96E4
- Part No.:
- CD74HC154M96E4
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CD74HC154M96E4.pdf
- Description:
- IC DECODER/DEMUX 1X4:16 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,824
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Product details
Overview
CD74HC154M96E4 from Texas Instruments is a high-speed CMOS 4-to-16-line decoder/demultiplexer with dual enable inputs (E1, E2), operating from 2V to 6V, featuring 24-pin SOIC packaging, -55°C to +125°C temperature range, and propagation delay of 30 ns (max) at VCC = 6V, used in address decoding for memory expansion and I/O port selection in industrial control systems.
For engineers reviewing the CD74HC154M96E4 datasheet, CD74HC154M96E4 pinout, CD74HC154M96E4 application, or CD74HC154M96E4 equivalent, key selection considerations include its dual-enable demultiplexing capability, LSTTL fanout compatibility (10 loads), balanced propagation delay, wide supply voltage range, and high-noise immunity (NIL/NIH = 30% at VCC = 5V).
Technical Context
The CD74HC154M96E4 implements active-low 4-bit binary decoding with two independent enable inputs: a High on either E1 or E2 forces all 16 outputs (Y0–Y15) High; only when both enables are Low does decoding occur based on A0–A3 inputs. Its architecture supports cascading via enable chaining and demultiplexing by routing data through one enable while holding the other low.
It uses standard HC-series CMOS logic with rail-to-rail output swing, input thresholds referenced to VCC (VIH = 1.5V min at 2V, 4.2V min at 6V), and guaranteed operation across military-grade temperature extremes. Propagation delays are tightly matched between address and enable paths (tPLH/tPHL ≤ 45 ns at -55°C to +125°C, VCC = 6V, CL = 50 pF), ensuring deterministic timing in synchronous systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 4-to-16 line decoder/demultiplexer with dual active-low enables |
| Supply Voltage Range | 2V to 6V - supports mixed-voltage system interfacing and battery-powered operation |
| Operating Temperature | -55°C to +125°C - qualified for aerospace, defense, and under-hood automotive applications |
| Propagation Delay (max) | 45 ns at VCC = 6V, CL = 50 pF, -55°C to +125°C - ensures timing predictability in real-time control loops |
| Fanout Capability | 10 LSTTL loads - drives legacy TTL peripherals without level-shifting buffers |
| Noise Immunity | NIL = NIH = 30% of VCC at VCC = 5V - rejects common-mode noise in electrically noisy environments |
| Input Capacitance | 10 pF - minimizes loading on upstream drivers and preserves signal integrity at high frequencies |
Pinout & Package
CD74HC154M96E4 is housed in a 24-pin SOIC (DW) package with 0.300-inch body width, JEDEC MS-013 compliant, moisture sensitivity level 1 (260°C peak reflow), and tape-and-reel packaging (2000 units per reel). Pin 1 orientation follows quadrant Q1 per TI tape specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | A0–A3 | 4-bit binary address inputs determining active output Y0–Y15 |
| 5, 6 | E1, E2 | Active-low enable inputs; OR logic - High on either disables all outputs (forces High) |
| 7–10, 18–21 | Y0–Y7, Y8–Y15 | 16 active-low decoded outputs - only one Low when both enables are active |
| 12 | GND | Ground reference for logic and power return path |
| 24 | VCC | Positive supply rail (2V–6V); decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Dual enable inputs (E1, E2) | Enables hierarchical decoding and cascading of multiple CD74HC154M96E4 devices without external logic |
| Wide VCC range (2V–6V) | Eliminates need for level shifters when interfacing with 3.3V microcontrollers and 5V peripheral buses |
| High noise immunity (30% VCC) | Reduces susceptibility to EMI in motor drive and power conversion subsystems |
| Low quiescent current (≤160 µA) | Supports low-power standby modes in battery-backed instrumentation and remote sensors |
| Industrial/military temperature rating | Validated operation across full -55°C to +125°C range - no derating required for harsh-environment deployment |
Applications
| Memory Address Decoding | I/O Port Expansion |
|---|---|
Use Scenario: Selecting one of 16 memory banks or peripheral registers in an 8-bit microcontroller system with limited address lines. IC Role / Device Role / Timing Role: Decoder translates 4-bit address bus into individual chip-select signals for parallel memory or register arrays. Use Value: Enables full utilization of 16KB address space using only four address bits, reducing PCB trace count and simplifying layout. |
Use Scenario: Expanding GPIO count for industrial PLC modules requiring discrete sensor/actuator control. IC Role / Device Role / Timing Role: Demultiplexer routes a single control signal to one of 16 output channels under microcontroller command. Use Value: Provides deterministic, glitch-free channel selection with sub-50 ns propagation delay - critical for synchronized actuator sequencing. |
| Cascaded Logic Control | Test Equipment Signal Routing |
Use Scenario: Building multi-stage enable trees in automated test equipment to activate subsets of measurement circuits. IC Role / Device Role / Timing Role: First-stage CD74HC154M96E4 enables second-stage decoders via E1/E2, creating hierarchical activation zones. Use Value: Achieves precise power gating and signal isolation across 256+ channels using minimal control lines and no FPGA resources. |
Use Scenario: Routing calibration reference signals to 16 precision DACs in metrology-grade data acquisition hardware. IC Role / Device Role / Timing Role: Decoder selects one of 16 analog signal paths while maintaining low crosstalk and consistent propagation delay. Use Value: Ensures <100 ps skew between selected paths - essential for phase-coherent multi-channel calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-to-16 decoder/demultiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD74HC154M96 | No suffix "E4"; identical electrical specs and SOIC-24 packaging; same tape-and-reel quantity (2000/reel) and MSL-1 rating | Same functional replacement; "E4" denotes specific TI internal revision/traceability code - no performance or reliability impact | Select CD74HC154M96E4 when full TI production traceability (lot/batch/revision) is required for AS9100 or MIL-STD-883 compliance programs. |
| SN74HC154DR | Same function and pinout; manufactured by TI but in different SOIC-24 package variant (D package vs DW); slightly higher typical ICC (10 µA vs 8 µA at 25°C) | Compatible in footprint and logic behavior; D package has marginally higher thermal resistance (θJA = 71°C/W vs 46°C/W for DW) | Choose SN74HC154DR only if DW-package inventory constraints exist; DW package preferred for high-temperature or thermally dense layouts. |
Compared with CD74HC154M96 and SN74HC154DR, the CD74HC154M96E4 offers identical core functionality but provides enhanced manufacturing traceability and superior thermal performance due to its DW package, making it optimal for mission-critical embedded systems where long-term reliability and thermal margin are design priorities.
Availability
CD74HC154M96E4 is available at Aetrix Electronics and suitable for industrial control systems, aerospace avionics interfaces, and automotive engine management modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD74HC154M96E4 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 ICs, with over 90 years of innovation in high-reliability components for industrial, automotive, and defense markets.
The CD74HC154M96E4 belongs to TI's legacy HC logic family, designed specifically for robust, low-power, wide-temperature decoding in systems where pin-compatible upgrade paths and long-term obsolescence mitigation are critical.
FAQ
What is the maximum clock/data frequency supported by CD74HC154M96E4?
The CD74HC154M96E4 is a combinational logic device with no internal clock; its usable frequency depends on propagation delay and load capacitance. With CL = 15 pF and VCC = 5V, tPLH/tPHL is 14 ns (typ), supporting reliable operation up to ~35 MHz toggle rate in well-designed PCB layouts with controlled impedance and proper decoupling.
Can CD74HC154M96E4 interface directly with 3.3V microcontrollers?
Yes. The CD74HC154M96E4 operates down to 2V and accepts VIH ≥ 1.5V at VCC = 3.3V (per HC input threshold spec), making it fully compatible with 3.3V CMOS logic families. No level-shifting circuitry is needed when VCC is set to 3.3V and driven by standard 3.3V GPIOs.
Does CD74HC154M96E4 support hot-swap or live-insertion?
No. The CD74HC154M96E4 lacks hot-swap protection circuitry. Applying VCC before inputs or removing power during operation may cause latch-up or excessive current flow. Always power VCC before applying input signals, and follow TI's recommended power sequencing guidelines in the datasheet.
What is the meaning of the "E4" suffix in CD74HC154M96E4?
The "E4" suffix is a Texas Instruments internal revision identifier denoting a specific wafer fabrication lot, process node, and test configuration. It does not indicate functional or parametric differences from CD74HC154M96 but provides full traceability for quality audits and failure analysis in regulated industries.
How does CD74HC154M96E4 handle simultaneous transitions on A0–A3 inputs?
The CD74HC154M96E4 exhibits balanced propagation delay and transition times across all address inputs, minimizing output glitches during simultaneous bit changes. Its internal logic ensures monotonic output behavior - only one Yx output goes Low per unique A0–A3 combination, even during asynchronous input transitions.
CD74HC154M96E4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Decoder/Demultiplexer
- Circuit:
- 1 x 4:16
- Independent Circuits:
- 1
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SOIC
CD74HC154M96E4 FAQ
1.How can I place an order for CD74HC154M96E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HC154M96E4 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 CD74HC154M96E4 reliable?
The price and inventory of CD74HC154M96E4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HC154M96E4 is usually 5 days.
3.What payment methods are accepted for CD74HC154M96E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HC154M96E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74HC154M96E4?
CD74HC154M96E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HC154M96E4 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 CD74HC154M96E4?
For technical support, including CD74HC154M96E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HC154M96E4 requirements.
6.How does Aetrix verify that CD74HC154M96E4 is sourced from the original manufacturer or authorized distributors?
All CD74HC154M96E4 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 CD74HC154M96E4 meets industry standards.
7.What is the process for return or replacement of CD74HC154M96E4?
All CD74HC154M96E4 units undergo pre-shipment inspection (PSI). If there is an issue with CD74HC154M96E4, 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 CD74HC154M96E4 part is unused and in its original packaging.
Return procedure for CD74HC154M96E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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