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Texas Instruments CD74HCT153M
- Part No.:
- CD74HCT153M
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74HCT153M.pdf
- Description:
- IC MULTIPLEXER 2 X 4:1 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:727
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Product details
Overview
CD74HCT153M from Texas Instruments is a dual 4-to-1-line selector/multiplexer IC designed for digital signal routing in logic systems. It features common select inputs (S0, S1), independent enable inputs (1E, 2E), and operates at 4.5V–5.5V with LSTTL-compatible input thresholds (VIL ≤ 0.8V, VIH ≥ 2.0V). Each section drives one output (1Y, 2Y) from four data inputs (I0–I3), supporting industrial temperature range (–55°C to +125°C) and 10 LSTTL load fanout.
For engineers reviewing the CD74HCT153M datasheet, CD74HCT153M pinout, CD74HCT153M application, or CD74HCT153M equivalent, key selection criteria include its HCT-family TTL compatibility, dual-channel multiplexing architecture, SOIC-16 package, wide temperature operation, and enable-controlled output disable functionality.
Technical Context
The CD74HCT153M implements two independent 4:1 multiplexers sharing select lines S0 and S1, with separate active-low enable inputs (1E, 2E) that force corresponding outputs (1Y, 2Y) LOW when asserted. Its HCT logic family ensures direct interface with legacy LSTTL outputs while maintaining CMOS power efficiency and noise immunity (NIL/NIH = 30% of VCC).
Propagation delays are specified at 34–51 ns (S/I to Y, CL = 50 pF, VCC = 4.5 V, –55°C to +125°C), with balanced tPLH/tPHL and output transition times ≤22 ns. Input capacitance is 10 pF, and quiescent ICC is ≤160 µA over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | HCT - TTL-compatible inputs, CMOS power efficiency, 4.5V–5.5V supply |
| Function | Dual 4-to-1 selector/multiplexer with common S0/S1 and independent enables (1E, 2E) |
| Operating Temperature | –55°C to +125°C - qualified for extended industrial/military environments |
| Input Thresholds | VIL ≤ 0.8 V (max), VIH ≥ 2.0 V (min) - ensures reliable interfacing with LSTTL outputs |
| Propagation Delay | ≤51 ns (I/S to Y, CL = 50 pF, VCC = 4.5 V, –55°C to +125°C) - supports medium-speed digital routing |
| Fanout Capability | 10 LSTTL loads - sufficient drive strength for standard logic fanout without buffering |
| Package | SOIC-16 (D package) - surface-mount, 1.27 mm pitch, JEDEC MS-012 compliant |
Pinout & Package
CD74HCT153M uses a 16-pin SOIC (Small Outline Integrated Circuit) package, designated as "D" by Texas Instruments, with 1.27 mm lead pitch and JEDEC MS-012 outline. The package is RoHS-compliant, moisture sensitivity level 1 (260°C peak reflow), and rated for –55°C to +125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1E | Section 1 Enable (active-low) | When HIGH, forces 1Y LOW; enables multiplexing only when LOW |
| S1 | Common Select Bit 1 | MSB of 2-bit select code shared by both multiplexer sections |
| 1I3–1I0 | Section 1 Data Inputs | Four digital inputs routed to 1Y based on S1/S0 state |
| GND | Ground Reference | Power return path for all internal logic and I/O circuits |
| 1Y | Section 1 Output | Active-high, buffered output reflecting selected 1Ix input when 1E = LOW |
| VCC | Positive Supply | 4.5V–5.5V CMOS supply; powers internal logic and output drivers |
| S0 | Common Select Bit 0 | LSB of 2-bit select code shared by both multiplexer sections |
| 2I3–2I0 | Section 2 Data Inputs | Four independent digital inputs routed to 2Y based on S1/S0 state |
| 2Y | Section 2 Output | Active-high, buffered output reflecting selected 2Ix input when 2E = LOW |
| 2E | Section 2 Enable (active-low) | When HIGH, forces 2Y LOW; enables multiplexing only when LOW |
Key Features
| Feature | Design Value |
|---|---|
| Common select inputs (S0, S1) | Reduces control bus width by enabling dual 4:1 mux operation with single 2-bit address |
| Separate enable inputs (1E, 2E) | Allows independent gating of each multiplexer section without affecting the other |
| Buffered inputs and outputs | Ensures clean signal integrity, consistent drive strength, and noise rejection across temperature |
| Wide operating temperature range | –55°C to +125°C rating supports deployment in harsh industrial, aerospace, and defense systems |
| Direct LSTTL input compatibility | Eliminates level-shifting requirements when interfacing with legacy TTL logic families |
Applications
| Industrial Control Logic | Test Equipment Signal Routing |
|---|---|
Use Scenario: Selecting among multiple sensor inputs (e.g., thermocouple, RTD, pressure) for ADC sampling in programmable logic controllers. IC Role / Device Role / Timing Role: Dual 4:1 multiplexer routing analog front-end signals to shared ADC channel under microcontroller control. Use Value: Reduces component count versus discrete gate-based solutions while maintaining deterministic timing and industrial-grade reliability. | Use Scenario: Switching between calibration references, DUT signals, and test patterns in automated test equipment (ATE) channel cards. IC Role / Device Role / Timing Role: Signal path selector enabling flexible stimulus/response configuration without FPGA resource overhead. Use Value: Provides sub-50 ns propagation delay and guaranteed LSTTL compatibility for seamless integration with legacy ATE backplanes. |
| Avionics Data Acquisition | Medical Instrumentation Multiplexing |
Use Scenario: Consolidating discrete aircraft subsystem telemetry (fuel flow, engine RPM, cabin pressure) onto shared serial data buses. IC Role / Device Role / Timing Role: Ruggedized dual multiplexer performing time-sliced sampling under real-time OS scheduling. Use Value: –55°C to +125°C qualification and low ICC (<160 µA) support uncooled avionics bays and extended mission durations. | Use Scenario: Routing ECG, EEG, and SpO₂ analog channels to a shared precision ADC in portable patient monitors. IC Role / Device Role / Timing Role: Low-noise, enable-gated signal selector minimizing crosstalk and ensuring channel isolation during standby. Use Value: Buffered I/O and 10 LSTTL fanout simplify interface to microcontroller GPIO and reduce external buffering needs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT153N | Same HCT logic, identical function and pinout, but in PDIP-16 package (not SOIC) | Requires through-hole PCB layout; lacks SOIC thermal resistance advantage (θJA = 67°C/W vs. 73°C/W) | Select when prototyping on breadboards or legacy through-hole assemblies |
| CD74HC153M | Same pinout and function, but HC-family (2V–6V operation); incompatible TTL input thresholds (VIH = 1.5V min @ 2V) | Not directly interchangeable with LSTTL sources; requires level translation or redesigned input drivers | Select only when supply voltage flexibility > TTL compatibility, and system uses pure CMOS signaling |
Compared with SN74HCT153N and CD74HC153M, CD74HCT153M uniquely combines SOIC-16 surface-mount packaging, guaranteed LSTTL input compatibility, and extended temperature operation-making it optimal for space-constrained, high-reliability industrial and aerospace designs requiring drop-in legacy interface support.
Availability
CD74HCT153M is available at Aetrix Electronics and suitable for industrial control logic, test equipment signal routing, avionics data acquisition, and medical instrumentation multiplexing requiring stable component supply across extended temperature ranges.
Supply support for CD74HCT153M 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 technologies, with decades of heritage in high-reliability logic design.
The CD74HCT153M belongs to TI's legacy High-Speed CMOS Logic (HCT) product line, engineered for seamless migration from bipolar TTL systems while delivering CMOS power efficiency and robustness in demanding environments.
FAQ
What is the supply voltage range for CD74HCT153M?
The CD74HCT153M operates strictly within 4.5 V to 5.5 V. This narrow range ensures compatibility with standard 5 V LSTTL logic families and guarantees correct input threshold behavior (VIL ≤ 0.8 V, VIH ≥ 2.0 V). Operation outside this range may cause undefined logic states or excessive ICC, and is not characterized per the SCHS151C datasheet.
Does CD74HCT153M support independent selection for each multiplexer section?
No - CD74HCT153M uses common select inputs S0 and S1 for both sections. The two 4:1 multiplexers share the same 2-bit address, meaning both 1Y and 2Y route their respective I0–I3 inputs using identical S1/S0 values. Independent addressing requires two separate 4:1 mux ICs or a different architecture.
What happens to the outputs when the enable inputs are HIGH?
When either 1E or 2E is HIGH, the corresponding output (1Y or 2Y) is forced LOW, regardless of S0/S1 state or data inputs. This active-low enable behavior provides predictable output disable for bus isolation and power sequencing - a key feature confirmed in the truth table and functional diagram of the CD74HCT153M datasheet.
Is CD74HCT153M pin-compatible with CD74HC153M?
Yes - CD74HCT153M and CD74HC153M share identical SOIC-16 pinout, terminal functions, and package dimensions. However, they differ electrically: CD74HC153M operates from 2 V to 6 V and has CMOS input thresholds, making it incompatible with LSTTL sources without level shifting. CD74HCT153M retains the same pinout but adds TTL-compatible inputs.
What is the maximum propagation delay for CD74HCT153M over full temperature range?
The maximum propagation delay for CD74HCT153M is 51 ns (I-to-Y or S-to-Y paths, CL = 50 pF, VCC = 4.5 V, –55°C to +125°C), as specified in the "Switching Specifications" table of the SCHS151C datasheet. This value applies to worst-case conditions and ensures timing predictability in real-time control loops and synchronous data acquisition.
CD74HCT153M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HCT
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Multiplexer
- Circuit:
- 2 x 4:1
- 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
CD74HCT153M FAQ
1.How can I place an order for CD74HCT153M through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HCT153M 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 CD74HCT153M reliable?
The price and inventory of CD74HCT153M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HCT153M is usually 5 days.
3.What payment methods are accepted for CD74HCT153M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HCT153M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74HCT153M?
CD74HCT153M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HCT153M 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 CD74HCT153M?
For technical support, including CD74HCT153M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HCT153M requirements.
6.How does Aetrix verify that CD74HCT153M is sourced from the original manufacturer or authorized distributors?
All CD74HCT153M 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 CD74HCT153M meets industry standards.
7.What is the process for return or replacement of CD74HCT153M?
All CD74HCT153M units undergo pre-shipment inspection (PSI). If there is an issue with CD74HCT153M, 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 CD74HCT153M part is unused and in its original packaging.
Return procedure for CD74HCT153M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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