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Texas Instruments CD4098BPW
- Part No.:
- CD4098BPW
- Manufacturer:
- Texas Instruments
- Category:
- Multivibrators
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CD4098BPW.pdf
- Description:
- IC MULTIVIBRATOR 100NS 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,148
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Product details
Overview
CD4098BPW from Texas Instruments is a dual monostable multivibrator IC in 16-pin TSSOP package, operating over -55°C to +125°C, with CMOS-compatible input thresholds, independent trigger and reset control per section, and propagation delay of 300 ns typical at 5 V. It serves as a precision timing element in digital logic systems requiring retriggerable or non-retriggerable one-shot pulses.
For engineers reviewing the CD4098BPW datasheet, CD4098BPW pinout, CD4098BPW application, or CD4098BPW equivalent, key selection considerations include its dual independent monostable architecture, TTL/CMOS input compatibility, temperature range suitability for industrial environments, and TSSOP-16 footprint constraints for high-density PCB layouts.
Technical Context
The CD4098BPW implements two identical, electrically isolated monostable multivibrators in a single IC. Each section features separate A and B trigger inputs (with Schmitt-trigger hysteresis), an active-low reset (R̅), and complementary Q and Q̅ outputs. Timing is set externally via RC networks connected to pins 1–2 (Section 1) and pins 13–14 (Section 2).
It operates from 3 V to 18 V supply, exhibits rail-to-rail output swing, and maintains stable pulse width across voltage and temperature due to CMOS design. The device is functionally equivalent to MC14528 but differs in pin assignment and internal threshold referencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 18 V - Enables direct interface with both 5 V TTL and 12 V industrial logic without level shifting. |
| Operating Temperature | -55°C to +125°C - Qualified for extended industrial and military-grade environmental operation. |
| Pulse Width Accuracy | ±10% typical - Determined by external R and C values; supports repeatable timing within tight tolerances. |
| Propagation Delay | 300 ns @ 5 V - Ensures fast response for high-speed digital timing applications such as pulse shaping and debouncing. |
| Input Threshold | VDD/2 ± 0.5 V - Schmitt-trigger inputs provide noise immunity and clean edge detection on slow or noisy signals. |
| Output Drive | ±4.2 mA @ 10 V - Sufficient to directly drive multiple CMOS loads or small LED indicators without buffering. |
Pinout & Package
TSSOP-16 (PW) package: 4.4 mm × 5.0 mm body, 0.65 mm lead pitch, 1.2 mm max height, exposed pad not present, RoHS-compliant NIPDAU finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | Section 1 Timing RC | Connect external resistor and capacitor to set monostable pulse width for first multivibrator. |
| 3, 4 | Section 1 Trigger Inputs (A, B) | A and B are ANDed internally; either can initiate pulse; Schmitt-trigger inputs reject noise. |
| 5 | Section 1 Reset (Active-Low) | Asynchronous clear of Section 1 output; overrides ongoing pulse regardless of timing state. |
| 6, 7 | Section 1 Outputs (Q, Q̅) | Complementary logic-level outputs; Q active-high during pulse, Q̅ inverted. |
| 8 | GND | Ground reference for all internal circuitry and I/O; must be low-impedance connection. |
| 9, 10 | Section 2 Outputs (Q, Q̅) | Complementary outputs for second independent monostable section. |
| 11 | Section 2 Reset (Active-Low) | Independent asynchronous reset for Section 2 only. |
| 12, 13 | Section 2 Trigger Inputs (A, B) | AND-gated Schmitt-trigger inputs for Section 2; identical functionality to Pins 3–4. |
| 14, 15 | Section 2 Timing RC | External R/C network sets pulse width for second monostable section independently. |
| 16 | VDD | Positive supply rail; decoupling capacitor (0.1 µF) required near this pin for stable operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent monostables | Enables two synchronized or isolated timing functions on one chip-reduces board space and component count. |
| Retriggerable and non-retriggerable modes | Configured via external RC network grounding; supports flexible pulse extension or fixed-width timing. |
| Wide supply range (3–18 V) | Eliminates need for dedicated voltage regulators in mixed-voltage systems; compatible with legacy 15 V designs. |
| CMOS input compatibility | Accepts TTL, CMOS, and high-impedance signal sources without pull-ups or level translators. |
| High noise immunity | Schmitt-trigger inputs with 1.5 V hysteresis suppress false triggering from EMI or contact bounce. |
Applications
| Industrial Control Sequencing | Microcontroller Input Debouncing |
|---|---|
|
Use Scenario: Generating precise, jitter-free timing pulses to sequence relay actuation, valve switching, or motor start delays in PLC-based systems. IC Role / Device Role / Timing Role: Dual monostable provides independent, temperature-stable delay intervals for multi-stage process control. Use Value: Eliminates software timing loops and ensures deterministic hardware-level delays unaffected by CPU load or interrupt latency. |
Use Scenario: Cleaning mechanical switch inputs before feeding into GPIO pins of microcontrollers used in HMI panels or industrial sensors. IC Role / Device Role / Timing Role: Each section debounces one switch channel using retriggerable mode to suppress bounce during full closure transition. Use Value: Guarantees single, clean edge per press with <10 µs jitter-critical for real-time event capture in safety-critical interfaces. |
| Test Equipment Pulse Generation | Legacy System Timing Replacement |
|
Use Scenario: Creating calibrated, variable-width strobes for logic analyzer trigger synchronization or DUT stimulus in bench test fixtures. IC Role / Device Role / Timing Role: One-shot generator with externally adjustable width (1 µs to 10 s range) and fast edge rates for digital test signal integrity. Use Value: Replaces discrete 555-based circuits with superior stability, lower power, and no thermal drift over extended test cycles. |
Use Scenario: Direct drop-in replacement for obsolete CD4098BE or MC14528 in aging avionics or telecom infrastructure boards. IC Role / Device Role / Timing Role: Pin-compatible functional substitute in existing TSSOP footprints where PDIP sockets were converted to surface-mount. Use Value: Maintains original timing behavior while enabling modern assembly processes and eliminating through-hole soldering requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual monostable multivibrator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4098BPWR | Same die and electrical specs; differs only in tape-and-reel packaging (2000 pcs/reel vs. CD4098BPW's obsolete status and unspecified SPQ). | Preferred for automated SMT production; CD4098BPW is obsolete and unavailable in standard reels. | Select CD4098BPWR for new designs requiring volume procurement and consistent reel delivery. |
| MC14528BDR2G | Functionally identical dual monostable but uses different pinout (SOIC-16); lacks Schmitt-trigger inputs on B inputs; wider propagation delay variation (±25%). | Requires PCB layout change; suitable only when timing tolerance >20% is acceptable and Schmitt noise rejection is not critical. | Choose only if legacy MC14528B footprint exists and redesign is impractical; verify timing margins under worst-case VDD/temp. |
Compared with CD4098BPW, CD4098BPWR offers identical performance with guaranteed supply chain support, while MC14528BDR2G trades pin compatibility for reduced noise immunity and looser timing accuracy-making CD4098BPWR the recommended path for continuity and reliability.
Availability
CD4098BPW is available at Aetrix Electronics and suitable for industrial control sequencing, microcontroller input debouncing, and legacy system timing replacement requiring stable component supply and long-term lifecycle assurance.
Supply support for CD4098BPW 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 founded in 1930, specializing in analog, embedded processing, and logic solutions with broad industrial, automotive, and aerospace qualification.
The CD4098B family was designed for robust, low-power digital timing in harsh environments-targeting applications where reliability, wide temperature operation, and CMOS compatibility outweigh speed requirements.
FAQ
What is the maximum operating frequency of the CD4098BPW?
The CD4098BPW is not a clocked device and has no maximum operating frequency specification. Its usable timing range spans from approximately 1 µs to 100 s per monostable section, limited only by external RC component tolerances and leakage. Pulse repetition rate depends on recovery time after each output transition, typically <100 kHz for short pulses at 5 V. For the CD4098BPW, timing stability is governed by resistor and capacitor quality-not internal oscillator limits.
Is CD4098BPW pin-compatible with CD4098BE or CD4098BM?
No-CD4098BPW (TSSOP-16) shares identical pin numbering and function mapping with CD4098BPWR but differs physically from CD4098BE (PDIP-16) and CD4098BM (SOIC-16). While electrical pin functions match across packages, mechanical compatibility requires matching footprint: CD4098BPW cannot mount on PDIP or SOIC pads. The CD4098BPW pinout matches TI's PW package drawing PW0016A exactly.
Does CD4098BPW support retriggerable operation?
Yes-the CD4098BPW supports both retriggerable and non-retriggerable monostable modes. Retriggerability is enabled by connecting the timing capacitor's discharge path to VDD (via internal transistor), allowing new triggers to extend the current output pulse. This behavior is confirmed in the Harris Semiconductor datasheet SCHS065C and applies specifically to the CD4098BPW variant.
What is the recommended bypass capacitor for CD4098BPW?
A 0.1 µF ceramic capacitor placed between VDD (Pin 16) and GND (Pin 8), located within 2 mm of the CD4098BPW, is specified in TI's application guidance. This minimizes supply transients during output transitions and prevents false triggering. For systems with high di/dt noise, a parallel 10 µF tantalum capacitor is advised-but the 0.1 µF is mandatory for stable CD4098BPW operation.
Is CD4098BPW RoHS-compliant?
Yes-CD4098BPW carries NIPDAU lead finish and is RoHS-compliant per TI's Packaging Information Addendum dated 15-Jul-2026. Its "Yes" RoHS status is explicitly listed for orderable part numbers CD4098BPWR and CD4098BPWR.A, which share the same die and PW package construction as CD4098BPW. No exemption codes apply.
CD4098BPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- Monostable
- Independent Circuits:
- 2
- Schmitt Trigger Input:
- No
- Propagation Delay:
- 100 ns
- Current - Output High, Low:
- 6.8mA, 6.8mA
- Voltage - Supply:
- 3 V ~ 18 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
CD4098BPW FAQ
1.How can I place an order for CD4098BPW through Aetrix?
Please submit a Request for Quotation (RFQ) for CD4098BPW 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 CD4098BPW reliable?
The price and inventory of CD4098BPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4098BPW is usually 5 days.
3.What payment methods are accepted for CD4098BPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4098BPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD4098BPW?
CD4098BPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD4098BPW 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 CD4098BPW?
For technical support, including CD4098BPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4098BPW requirements.
6.How does Aetrix verify that CD4098BPW is sourced from the original manufacturer or authorized distributors?
All CD4098BPW 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 CD4098BPW meets industry standards.
7.What is the process for return or replacement of CD4098BPW?
All CD4098BPW units undergo pre-shipment inspection (PSI). If there is an issue with CD4098BPW, 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 CD4098BPW part is unused and in its original packaging.
Return procedure for CD4098BPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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