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Texas Instruments CD4503BM96
- Part No.:
- CD4503BM96
- Manufacturer:
- Texas Instruments
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD4503BM96.pdf
- Description:
- IC BUFFER NON-INVERT 18V 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,464
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Product details
Overview
CD4503BM96 from Texas Instruments is a hex noninverting buffer IC with 3-state outputs, high sink- and source-current capability (±24 mA typical), dual independent output-enable controls (OE1 for buffers A–D, OE2 for E–F), and operates across -55°C to +125°C. It serves as a level-shifting bus interface in mixed-voltage digital systems requiring bidirectional signal buffering with low propagation delay (120 ns max at 15 V).
For engineers reviewing the CD4503BM96 datasheet, CD4503BM96 pinout, CD4503BM96 application, or CD4503BM96 equivalent, this device is selected for high-drive 3-state logic interfacing where independent control of buffer groups, wide supply range (3–18 V), and SOIC-16 packaging are required.
Technical Context
The CD4503BM96 implements six independent CMOS noninverting buffers, each with three-state output drivers controlled by two shared enable inputs. Its dual-enable architecture allows selective isolation of four buffers (pins 1–2, 4–5, 7–8, 10–11) via OE1 (pin 13) and two buffers (pins 12–13, 15–16) via OE2 (pin 14).
It supports true level translation between 5 V, 10 V, and 15 V logic domains due to its wide VDD range (3–18 V) and rail-to-rail output swing. Input thresholds scale with VDD, ensuring compatibility across supply voltages without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Hex noninverting 3-state buffer with dual enable controls |
| Supply Voltage Range | 3 V to 18 V - enables interoperability across legacy and modern logic families |
| Output Drive (IOH/IOL) | ±24 mA typical at VDD = 15 V - sufficient to drive heavy capacitive loads or multiple TTL inputs |
| Propagation Delay | 120 ns max (VDD = 15 V, CL = 50 pF) - supports medium-speed bus handshaking up to ~5 MHz |
| Operating Temperature | -55°C to +125°C - qualified for extended industrial and military-grade environments |
| Package | SOIC-16 (D package, 3.9 mm width) - surface-mount compatible with standard reflow profiles (MSL Level-1) |
Pinout & Package
CD4503BM96 is housed in a 16-pin SOIC (D) package per JEDEC MS-012, 3.9 mm body width, 1.75 mm height, 1.27 mm lead pitch. Pin 1 is located at the top-left corner with notch or beveled edge marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 7, 8, 10, 11, 12, 13, 15, 16 | Buffer input/output pairs (A–F) | Each pair (e.g., pin 1=input A, pin 2=output A) provides noninverting buffered path; outputs go high-impedance when respective OE is low |
| 13 | Output Enable 1 (OE1) | Active-high control for buffers A–D (pins 1–2, 4–5, 7–8, 10–11); low disables outputs to high-Z |
| 14 | Output Enable 2 (OE2) | Active-high control for buffers E–F (pins 12–13, 15–16); independent of OE1 for partial bus isolation |
| 16 | VDD | Positive supply terminal - must be decoupled locally; sets logic threshold and output voltage swing |
| 8 | VSS | Ground reference - common return for all inputs, outputs, and enables |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state enables | OE1 and OE2 allow segmented bus control - e.g., isolate data lanes while keeping address lines active |
| High current drive (±24 mA) | Eliminates need for external line drivers in 50–100 pF load scenarios; reduces board-level component count |
| Wide VDD range (3–18 V) | Supports direct interface between 3.3 V microcontrollers and 12 V industrial peripherals without level shifters |
| Rail-to-rail output swing | Ensures full logic '0' and '1' levels across supply range - critical for noise margin in noisy environments |
| CMOS input compatibility | Input leakage < 100 nA - minimizes loading on upstream logic and preserves battery life in portable designs |
Applications
| Industrial PLC I/O Modules | Legacy Bus Interface Adapters |
|---|---|
|
Use Scenario: Isolating and driving 24 V discrete sensor/actuator signals into 5 V microcontroller inputs within programmable logic controllers. IC Role / Device Role / Timing Role: Level-translating buffer with high sink current to interface sinking NPN sensors and sourcing PNP actuators. Use Value: Single CD4503BM96 handles six independent I/O channels with dual enable control, reducing PCB space versus discrete transistor solutions. |
Use Scenario: Bridging RS-232 or parallel printer port signals to modern embedded processors lacking native 12 V tolerant I/O. IC Role / Device Role / Timing Role: Noninverting 3-state buffer enabling bidirectional data transfer between legacy peripherals and low-voltage SoCs. Use Value: ±24 mA drive ensures reliable signal integrity over long traces; wide VDD accommodates both 5 V and 12 V side rails. |
| Military Data Acquisition Systems | Automotive Body Control Units |
|
Use Scenario: Signal conditioning and bus arbitration in ruggedized test equipment operating across -55°C to +125°C ambient. IC Role / Device Role / Timing Role: High-reliability buffer providing fault-isolated data paths between ADCs, DACs, and FPGA interfaces. Use Value: Extended temperature rating and hermetic-compatible SOIC packaging ensure long-term stability in avionics and ground vehicle electronics. |
Use Scenario: Driving LED clusters, relays, and solenoids from automotive microcontrollers while maintaining CAN bus signal integrity. IC Role / Device Role / Timing Role: High-current buffer isolating power-switching circuits from sensitive MCU GPIOs using OE-controlled shutdown. Use Value: Dual OE pins allow coordinated power-down of lighting zones without disrupting core communication functions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4050BM96 | No 3-state outputs; single global enable; lower drive (±4.2 mA at 15 V) | Suitable only for unidirectional, always-enabled buffering - lacks bus isolation capability | Select CD4503BM96 when independent group enable or higher drive is required. |
| SN74LVTH162244DGGR | 16-bit, 3.3 V only, LVTH logic family; higher speed (3.5 ns), but no wide-VDD support | Optimized for high-speed 3.3 V backplanes - incompatible with mixed-voltage or >5.5 V systems | Choose CD4503BM96 for multi-supply interoperability and extended temperature operation. |
Compared with CD4050BM96 and SN74LVTH162244DGGR, the CD4503BM96 uniquely combines dual 3-state enables, ±24 mA drive, and 3–18 V operation - making it the only option among the three for robust, mixed-voltage bus interface with segmented control.
Availability
CD4503BM96 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, legacy bus interface adapters, and military data acquisition systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD4503BM96 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 high-reliability components.
The CD4503B series belongs to TI's legacy CMOS logic portfolio, designed specifically for robust, wide-supply-range interfacing in harsh-environment applications including industrial control, defense electronics, and automotive subsystems.
FAQ
What is the maximum supply voltage rating for CD4503BM96?
The CD4503BM96 supports a maximum supply voltage of 18 V DC, with guaranteed operation across the full 3 V to 18 V range. This wide VDD window enables direct use in systems with 5 V, 10 V, 12 V, or 15 V rails without external regulation - a key advantage over standard 5 V logic families. The CD4503BM96 maintains specified timing and drive performance throughout this range.
Does CD4503BM96 support true bidirectional signal flow?
No - the CD4503BM96 is a noninverting buffer with unidirectional signal path (input → output). However, its 3-state outputs allow it to function in bidirectional bus architectures when paired with complementary devices or used in open-drain/open-collector configurations. Each buffer in the CD4503BM96 operates strictly input-to-output; directionality is determined by system-level design, not internal circuitry.
What is the pin 1 marking method for CD4503BM96 in SOIC packaging?
The CD4503BM96 uses a standard SOIC-16 (D package) with pin 1 identified by a beveled corner or small notch at the top-left edge of the package body. The part marking "CD4503BM" appears adjacent to pin 1, consistent with TI's SOIC orientation conventions. No dot or additional marker is used - orientation is confirmed solely by the physical package feature.
Is CD4503BM96 RoHS compliant and what is its MSL rating?
Yes, CD4503BM96 is RoHS compliant (lead finish: NiPdAu) and rated MSL Level-1 at 260°C peak reflow, meaning it may be stored indefinitely at ambient conditions without baking prior to assembly. This eliminates moisture sensitivity handling requirements during standard SMT processes - a benefit over higher-MSL packages like TSSOP variants.
How does the dual-enable architecture of CD4503BM96 improve system design?
The CD4503BM96's separate OE1 (controls buffers A–D) and OE2 (controls E–F) enables selective bus segmentation - for example, holding data lines in high-Z while keeping address or control lines active. This reduces contention, simplifies timing in multi-master systems, and lowers dynamic power by disabling unused sections. Unlike single-enable alternatives, the CD4503BM96 provides granular control without requiring additional logic gates.
CD4503BM96 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
- 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-SOIC
CD4503BM96 FAQ
1.How can I place an order for CD4503BM96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD4503BM96 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 CD4503BM96 reliable?
The price and inventory of CD4503BM96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4503BM96 is usually 5 days.
3.What payment methods are accepted for CD4503BM96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4503BM96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD4503BM96?
CD4503BM96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD4503BM96 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 CD4503BM96?
For technical support, including CD4503BM96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4503BM96 requirements.
6.How does Aetrix verify that CD4503BM96 is sourced from the original manufacturer or authorized distributors?
All CD4503BM96 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 CD4503BM96 meets industry standards.
7.What is the process for return or replacement of CD4503BM96?
All CD4503BM96 units undergo pre-shipment inspection (PSI). If there is an issue with CD4503BM96, 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 CD4503BM96 part is unused and in its original packaging.
Return procedure for CD4503BM96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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