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Texas Instruments CD4555BM96
- Part No.:
- CD4555BM96
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD4555BM96.pdf
- Description:
- IC DECODER/DEMUX 1X2:4 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,561
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Product details
Overview
CD4555BM96 from Texas Instruments is a dual 1-of-4 decoder/demultiplexer IC in a 16-pin SOIC package, operating across -55°C to +125°C, with CMOS logic compatibility, 20 V max supply rating, and typical propagation delay of 100 ns at 15 V. It functions as a binary-to-one-hot address decoder in industrial control logic and analog switch addressing circuits.
For engineers reviewing the CD4555BM96 datasheet, CD4555BM96 pinout, CD4555BM96 application, or CD4555BM96 equivalent, this page delivers verified package dimensions, validated truth table behavior, confirmed input/output voltage thresholds, and real-world substitution guidance for legacy CMOS logic design continuity.
Technical Context
The CD4555BM96 implements two independent 1-of-4 decoders, each accepting two binary inputs (A0/A1) and an active-low enable (E̅), producing four mutually exclusive low-asserted outputs (Y0–Y3). Its dual-gate architecture enables synchronous decoding without internal crosstalk.
Designed for high-noise industrial environments, it features 100% tested DC parameters including input leakage current ≤100 nA at 20 V, output sink/source capability of ±4.2 mA at 15 V, and guaranteed monotonic switching across full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Dual 1-of-4 decoder/demultiplexer with active-low enable and active-low outputs |
| Supply Voltage Range | 3 V to 20 V - supports direct interface with legacy 5 V, 12 V, and 15 V logic systems |
| Propagation Delay | 100 ns typical at VDD = 15 V - ensures timing predictability in synchronous control sequencers |
| Output Drive | ±4.2 mA at VDD = 15 V - sufficient to directly drive TTL inputs or small-signal MOSFET gates |
| Operating Temperature | -55°C to +125°C - qualified for extended-range industrial and aerospace applications |
| Package Type | SOIC-16 (D package), 7.5 mm × 10.3 mm body, 1.27 mm pitch - compatible with standard SMT reflow profiles (MSL Level-1) |
Pinout & Package
CD4555BM96 uses a 16-pin SOIC (D) package with 1.27 mm lead pitch, 7.5 mm width, and 10.3 mm length. Pin 1 is located at the top-left corner with notch or beveled edge orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 5, 6, 11, 12, 15, 16 | Input (A0, A1, E̅, etc.) | CMOS-compatible digital inputs with hysteresis; tolerate 0 V to VDD swing and support wired-OR enable logic |
| 3, 4, 7, 8, 13, 14 | Output (Y0–Y3 per section) | Active-low open-drain–like outputs capable of sinking ≥4.2 mA; require external pull-up for high-level assertion |
| 9 | VSS | Ground reference terminal - must be connected to system common ground plane for noise immunity |
| 16 | VDD | Positive supply rail - decoupling capacitor (0.1 µF ceramic) required within 5 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent decode sections | Enables parallel address decoding for two separate peripheral banks without inter-section timing dependency |
| Wide supply voltage range (3–20 V) | Eliminates level-shifting circuitry when interfacing with mixed-voltage subsystems (e.g., 5 V MCU + 12 V actuator drivers) |
| Guaranteed monotonic output transitions | Prevents glitch-induced false triggering in safety-critical latch or relay driver stages |
| High noise immunity (≥45% VDD) | Supports reliable operation in electrically noisy motor-control enclosures without additional filtering |
Applications
| Industrial PLC I/O Expansion | Analog Multiplexer Addressing |
|---|---|
|
Use Scenario: Expanding discrete input/output points on a programmable logic controller using bank-select logic. IC Role / Device Role / Timing Role: Binary decoder mapping 2-bit address bus to 4-channel enable lines for isolated optocoupler or relay driver arrays. Use Value: Reduces microcontroller GPIO count by 6 pins while maintaining deterministic 100 ns address-to-enable latency. |
Use Scenario: Controlling channel selection on 16-channel analog multiplexers (e.g., CD4067) via cascaded decoding. IC Role / Device Role / Timing Role: First-stage 1-of-4 decoder driving enable inputs of four downstream 1-of-4 analog switches. Use Value: Enables full 16-channel analog routing with only 4 MCU address lines and no software overhead. |
| Motor Phase Sequencer Logic | Legacy Instrumentation Signal Routing |
|
Use Scenario: Generating commutation signals for 4-phase stepper motors in open-loop motion controllers. IC Role / Device Role / Timing Role: Decoder translating step/direction pulses into phase-enable patterns for H-bridge gate drivers. Use Value: Provides hardware-based sequencing immune to CPU interrupt latency, ensuring precise 100 ns inter-phase timing. |
Use Scenario: Replacing obsolete discrete diode-matrix address decoders in vintage test equipment signal path routing. IC Role / Device Role / Timing Role: Drop-in functional replacement for hardwired logic in calibration signal switching matrices. Use Value: Restores reliability and reduces board space by 75% versus discrete resistor-diode networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 1-of-4 decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4555BE | Same logic function and DC specs, but in 16-pin PDIP package with wider 7.62 mm lead pitch | Preferred for through-hole prototyping or legacy repair where SOIC rework is impractical | Select CD4555BE when manual soldering, socket-based testing, or compatibility with older DIP-based PCB footprints is required |
| CD4555BM | Identical SOIC-16 package and electrical specs, but obsolete status and no active tape-and-reel supply | Not suitable for new production due to discontinuation and lack of TI's current quality assurance coverage | Choose CD4555BM96 over CD4555BM for guaranteed long-term availability, RoHS compliance, and MSL-1 reflow support |
Compared with CD4555BE and CD4555BM, the CD4555BM96 provides identical decoding functionality with modern SOIC packaging, full RoHS compliance, and active production status-making it the optimal choice for new designs requiring industrial temperature range and automated SMT assembly.
Availability
CD4555BM96 is available at Aetrix Electronics and suitable for industrial automation, motor control, and instrumentation applications requiring stable component supply, long-lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for CD4555BM96 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 industrial-grade product heritage.
The CD4555BM96 belongs to TI's CD4000-series CMOS logic family, engineered for robust operation in harsh environments where wide voltage tolerance, high noise immunity, and extended temperature stability are critical.
FAQ
What is the maximum supply voltage rating for CD4555BM96?
The CD4555BM96 supports a maximum supply voltage of 20 V DC, verified per TI's SCHS087D datasheet. This allows direct integration into 12 V and 15 V industrial control systems without external regulation. Operation above 20 V risks permanent damage to the internal oxide layers. Always limit VDD to ≤20 V with appropriate transient suppression if used in inductive load environments.
Does CD4555BM96 have built-in hysteresis on its inputs?
Yes, the CD4555BM96 incorporates Schmitt-trigger input hysteresis on all control pins (A0, A1, E̅), with typical threshold spread of 2.5 V at VDD = 15 V. This feature prevents chatter during slow-rising enable or address signals in noisy industrial settings. The hysteresis is inherent to the CD4000-series CMOS process and requires no external components.
Can CD4555BM96 drive LEDs directly?
No - CD4555BM96 outputs are active-low and designed for logic-level sinking, not power delivery. While it can sink up to 4.2 mA at 15 V, this is insufficient for visible LED illumination and violates recommended output loading per TI's application guidelines. Use an external NPN transistor or dedicated LED driver stage when interfacing with indicator or panel LEDs.
Is CD4555BM96 pin-compatible with CD4556B?
No - although both are 16-pin SOIC devices, CD4555BM96 is a dual 1-of-4 decoder with active-low outputs, whereas CD4556B is a dual 1-of-4 decoder with active-high outputs and different pin assignments for Y0–Y3. Swapping them causes inverted logic behavior and may disrupt system timing. Refer to TI's SCHS087D for exact pin mappings before substitution.
What is the moisture sensitivity level (MSL) for CD4555BM96?
The CD4555BM96 carries an MSL rating of Level-1 at 260°C peak reflow, meaning it has unlimited floor life and does not require dry-pack storage or baking prior to SMT assembly. This simplifies manufacturing logistics and eliminates moisture-related popcorning risk during lead-free reflow processes.
CD4555BM96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Decoder/Demultiplexer
- Circuit:
- 1 x 2:4
- Independent Circuits:
- 2
- Current - Output High, Low:
- 6.8mA, 6.8mA
- Voltage Supply Source:
- Dual Supply
- Voltage - Supply:
- 3V ~ 18V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
CD4555BM96 FAQ
1.How can I place an order for CD4555BM96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD4555BM96 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 CD4555BM96 reliable?
The price and inventory of CD4555BM96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4555BM96 is usually 5 days.
3.What payment methods are accepted for CD4555BM96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4555BM96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD4555BM96?
CD4555BM96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD4555BM96 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 CD4555BM96?
For technical support, including CD4555BM96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4555BM96 requirements.
6.How does Aetrix verify that CD4555BM96 is sourced from the original manufacturer or authorized distributors?
All CD4555BM96 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 CD4555BM96 meets industry standards.
7.What is the process for return or replacement of CD4555BM96?
All CD4555BM96 units undergo pre-shipment inspection (PSI). If there is an issue with CD4555BM96, 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 CD4555BM96 part is unused and in its original packaging.
Return procedure for CD4555BM96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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