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Texas Instruments CD4503BPWRG4
- Part No.:
- CD4503BPWRG4
- Manufacturer:
- Texas Instruments
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CD4503BPWRG4.pdf
- Description:
- IC BUFFER NON-INVERT 18V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,692
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Product details
Overview
CD4503BPWRG4 from Texas Instruments is a hex noninverting buffer with 3-state outputs, designed for high-current digital signal routing in industrial control and instrumentation systems. It features dual independent output-enable controls (one for four buffers, one for two), ±24 mA sink/source capability at VDD = 15 V, and operates across –55°C to +125°C.
For engineers reviewing the CD4503BPWRG4 datasheet, CD4503BPWRG4 pinout, CD4503BPWRG4 application, or CD4503BPWRG4 equivalent, this device is selected for level-shifting bus interfaces, multiplexed data path control, and high-drive logic isolation where dual enable granularity and wide temperature range are required.
Technical Context
The CD4503BPWRG4 implements six independent CMOS noninverting buffers, each with three-state output controlled by two global OE signals: OE1 (pins 1 & 2) enables buffers A–D (pins 3–6, 11–14), and OE2 (pin 15) enables buffers E–F (pins 9–10). All inputs are compatible with TTL and CMOS logic levels.
Its high sink/source current (±24 mA typical at 15 V) supports direct driving of LEDs, relays, and terminated transmission lines without external drivers. The device uses standard CD4000-series silicon process, ensuring radiation-hardened operation and latch-up immunity per MIL-STD-883.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Hex noninverting buffer with 3-state outputs |
| Output Drive | ±24 mA sink/source at VDD = 15 V - drives heavy capacitive loads or low-impedance buses directly |
| Enable Control | Two independent OE inputs: OE1 (pins 1/2) for buffers A–D; OE2 (pin 15) for buffers E–F |
| Supply Voltage Range | 3 V to 18 V - supports mixed-voltage system interfacing and battery-backed operation |
| Operating Temperature | –55°C to +125°C - qualified for extended industrial and military-grade environments |
| Propagation Delay | 120 ns max at VDD = 15 V, CL = 50 pF - suitable for sub-MHz synchronous control paths |
Pinout & Package
TSSOP-16 package (PW suffix), 4.4 mm × 5.0 mm body, 0.65 mm pitch, 1.2 mm max height, RoHS-compliant NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | OE1 (active-low) | Enables/disables buffers A–D (pins 3–6, 11–14); tied together for single-control operation |
| 3–6 | Buffer A–D Inputs | CMOS/TTL-compatible inputs; drive corresponding 3-state outputs on pins 11–14 |
| 9–10 | Buffer E–F Inputs | Inputs for final two buffers; outputs on pins 7–8 |
| 7–8 | Buffer E–F Outputs | 3-state outputs enabled only by OE2 (pin 15) |
| 11–14 | Buffer A–D Outputs | 3-state outputs enabled only by OE1 (pins 1/2) |
| 15 | OE2 (active-low) | Independent enable for buffers E–F - enables granular bus partitioning |
| 16 | VDD | Positive supply (3–18 V); decoupling capacitor required within 10 mm |
| 8 | VSS | Ground reference; shared return for all six buffers and enable logic |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state enables | Allows selective activation of two functional groups (4+2) without software overhead or external logic |
| High-current drive (±24 mA) | Eliminates need for discrete transistor buffers when driving LEDs, solenoids, or 50-Ω transmission lines |
| Wide supply range (3–18 V) | Permits direct interface between 3.3 V microcontrollers and 5 V/12 V peripheral subsystems |
| Extended temperature support (–55°C to +125°C) | Validated for under-hood automotive, downhole tools, and aerospace avionics without derating |
| CMOS input compatibility | Accepts TTL-level inputs down to 0.8 V, simplifying legacy system integration |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Expanding discrete input/output points on a programmable logic controller rack using daisy-chained backplane buses. IC Role / Device Role / Timing Role: Hex buffer isolates and strengthens microcontroller GPIO signals driving optocoupler inputs and relay drivers. Use Value: Dual OE control allows grouped channel enable/disable during hot-swap events, preventing bus contention during module insertion/removal. |
Use Scenario: Driving multiple LED status indicators and small solenoid valves from a central BCM microcontroller. IC Role / Device Role / Timing Role: Noninverting buffer provides current gain and voltage-level translation between 3.3 V MCU outputs and 12 V vehicle power domain. Use Value: ±24 mA drive capability powers 20 mA LEDs directly without series resistors or external transistors, reducing BOM count. |
| Test Equipment Signal Routing | Military Radio Front-End Control |
Use Scenario: Multiplexing calibration signals and sensor excitation voltages in automated test equipment with programmable path selection. IC Role / Device Role / Timing Role: 3-state outputs act as bidirectional analog/digital signal gates under FPGA control. Use Value: Independent OE1/OE2 permits simultaneous routing of two independent signal groups (e.g., analog excitation + digital sync) without crosstalk. |
Use Scenario: Controlling RF switch arrays and filter bank selection in SDR-based tactical radios operating in extreme environmental conditions. IC Role / Device Role / Timing Role: High-reliability buffer interfaces FPGA configuration outputs to high-voltage RF switches requiring clean, glitch-free enable signals. Use Value: –55°C to +125°C rating ensures stable operation in unheated enclosures exposed to desert or arctic ambient extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4050BE | No 3-state outputs; single enable; ±4.2 mA drive at 15 V | Only suitable for simple level-shifting without bus contention management | Select when 3-state control and high drive are unnecessary and cost is primary constraint |
| SN74LVTH16244DGGR | 16-bit, 3.3 V only, higher speed (2.9 ns), but no extended temp rating | Requires level translators for 5 V/12 V interfaces; limited to commercial temp range | Select for high-speed, low-voltage data buses where industrial temperature range is not required |
Compared with CD4503BPWRG4, CD4050BE lacks 3-state control and current drive for active bus loading, while SN74LVTH16244DGGR offers speed and density but sacrifices temperature range and voltage flexibility - making CD4503BPWRG4 uniquely suited for ruggedized, multi-voltage, medium-speed control applications.
Availability
CD4503BPWRG4 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and test equipment signal routing requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD4503BPWRG4 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 90 years of innovation in industrial, automotive, and defense electronics.
The CD4503B family belongs to TI's legacy CD4000-series logic portfolio, engineered for high-reliability, wide-voltage, and extended-temperature operation in mission-critical control and instrumentation systems.
FAQ
What is the maximum output current specification for CD4503BPWRG4?
The CD4503BPWRG4 delivers ±24 mA sink and source current per output at VDD = 15 V, as specified in the Harris Semiconductor datasheet SCHS068C. This value is measured under DC conditions with load connected to VDD or ground. The CD4503BPWRG4 maintains this drive strength across its full operating temperature range (–55°C to +125°C), enabling direct interface with LEDs, relays, and terminated lines without external amplification.
Does CD4503BPWRG4 support TTL-level input signals?
Yes, CD4503BPWRG4 accepts TTL-compatible input thresholds: VIL ≤ 0.8 V and VIH ≥ 2.0 V across the full supply range (3–18 V). Its CMOS input structure ensures noise immunity and low input current (< 1 µA), allowing direct connection to legacy 5 V TTL outputs without pull-up resistors or level shifters - a key feature confirmed in the functional description of the CD4503B datasheet.
How are the two enable controls (OE1 and OE2) physically implemented on CD4503BPWRG4?
CD4503BPWRG4 implements OE1 as a dual-pin input (pins 1 and 2, internally OR'd) controlling buffers A–D, and OE2 as a single-pin input (pin 15) controlling buffers E–F. Both are active-low. This layout is explicitly defined in the pin configuration diagram of SCHS068C and verified in TI's packaging documentation for the PW package. Pins 1 and 2 must be tied together or driven identically to avoid undefined behavior.
Is CD4503BPWRG4 RoHS compliant and what is its moisture sensitivity level?
CD4503BPWRG4 is RoHS compliant with NIPDAU lead finish and carries an MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH), per TI's Packaging Information Addendum dated 15-Jul-2026. This classification permits indefinite storage and assembly without baking, simplifying manufacturing logistics for high-reliability production runs.
Can CD4503BPWRG4 operate reliably at 3.3 V supply voltage?
Yes, CD4503BPWRG4 is fully specified down to 3 V supply voltage, with guaranteed logic thresholds, propagation delay (≤500 ns max at 3 V), and output drive (±1.5 mA min) per the absolute maximum and recommended operating conditions tables in SCHS068C. Its rail-to-rail input compatibility ensures interoperability with 3.3 V microcontrollers without level translation.
CD4503BPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 2, 4 (Hex)
- Input Type:
- -
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 14.1mA, 23mA
- Voltage - Supply:
- 3V ~ 18V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
CD4503BPWRG4 FAQ
1.How can I place an order for CD4503BPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD4503BPWRG4 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 CD4503BPWRG4 reliable?
The price and inventory of CD4503BPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4503BPWRG4 is usually 5 days.
3.What payment methods are accepted for CD4503BPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4503BPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD4503BPWRG4?
CD4503BPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD4503BPWRG4 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 CD4503BPWRG4?
For technical support, including CD4503BPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4503BPWRG4 requirements.
6.How does Aetrix verify that CD4503BPWRG4 is sourced from the original manufacturer or authorized distributors?
All CD4503BPWRG4 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 CD4503BPWRG4 meets industry standards.
7.What is the process for return or replacement of CD4503BPWRG4?
All CD4503BPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with CD4503BPWRG4, 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 CD4503BPWRG4 part is unused and in its original packaging.
Return procedure for CD4503BPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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