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Texas Instruments CD4504BEE4
- Part No.:
- CD4504BEE4
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
CD4504BEE4.pdf
- Description:
- CMOS HEX VOLTAGE-LEVEL SHIFTER F
- Quantity:
- Payment:
- Shipping:
Inventory:3,116
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Product details
Overview
CD4504BEE4 from Texas Instruments is a CMOS hex non-inverting buffer/driver IC designed for level translation between TTL and MOS logic families, featuring 6 independent channels, ±20 mA output drive capability, and operation across -55°C to +125°C. It enables bidirectional voltage-level shifting in mixed-voltage digital systems such as industrial control interfaces and legacy system upgrades.
For engineers reviewing the CD4504BEE4 datasheet, CD4504BEE4 pinout, CD4504BEE4 application, or CD4504BEE4 equivalent, key selection criteria include its TTL-to-CMOS/MOS-to-TTL level-shifting capability, 16-pin PDIP package compatibility with through-hole prototyping, wide temperature range support, and absence of internal pull-ups or direction control pins.
Technical Context
The CD4504BEE4 implements six identical non-inverting buffer stages with high-impedance inputs and push-pull outputs capable of sourcing/sinking up to 20 mA per channel. Its input threshold is referenced to VDD/2, enabling reliable switching across supply voltages from 5 V to 20 V.
This device operates without external biasing or direction control logic, supporting unidirectional level translation in both TTL-to-CMOS (VCC = 5 V, VDD = 15 V) and CMOS-to-TTL (VCC = 15 V, VDD = 5 V) configurations. Propagation delay is typically 60 ns at 10 V VDD and 50 pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Hex non-inverting buffer with level-shifting capability between TTL and MOS logic families |
| Supply Voltage Range | 5 V to 20 V - supports dual-rail translation without external regulators |
| Output Drive | ±20 mA per channel - sufficient to directly drive TTL inputs or small LEDs without external transistors |
| Propagation Delay | 60 ns typical at VDD = 10 V, CL = 50 pF - suitable for medium-speed digital interconnects up to ~8 MHz |
| Operating Temperature | -55°C to +125°C - qualified for extended industrial and military-grade environments |
| Input Threshold | VDD/2 - ensures symmetrical noise margin and stable switching across full supply range |
| Package Type | 16-pin PDIP (N), 0.3-inch width - compatible with standard breadboards, socket adapters, and wave-solder processes |
Pinout & Package
CD4504BEE4 is supplied in a 16-lead plastic dual-in-line package (PDIP-N) with 0.3-inch body width and standard through-hole lead spacing. Pin 1 is located at the left end of the top row, identified by a notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (A1–A6) | CMOS/TTL-compatible inputs accepting logic levels referenced to VDD; no internal pull-up/down |
| 2, 4, 6, 10, 12, 14 | Output (Y1–Y6) | Push-pull CMOS outputs capable of sourcing/sinking 20 mA; rail-to-rail swing |
| 7 | GND | Logic ground reference for all inputs and outputs |
| 8 | VCC | TTL-side supply (typically 5 V); powers input stage and defines TTL logic thresholds |
| 15 | VDD | MOS-side supply (5–20 V); powers output stage and defines output voltage swing |
| 16 | NC | No connect - internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional level translation | Supports both TTL→CMOS (VCC=5 V, VDD=15 V) and CMOS→TTL (VCC=15 V, VDD=5 V) without external components |
| No direction control required | Eliminates need for bus-direction logic or external control signals - simplifies PCB routing and firmware |
| High noise immunity | VDD/2 input threshold provides balanced 45% noise margin at VDD = 10 V, reducing false triggering in noisy environments |
| Wide supply flexibility | VCC and VDD can be independently set from 5 V to 20 V, enabling use in multi-rail legacy systems |
| Robust ESD protection | Class 2 HBM rating (≥2 kV) per JEDEC JESD22-A114 - withstands handling and board assembly without special precautions |
Applications
| Industrial PLC I/O Modules | Legacy System Bus Interface |
|---|---|
Use Scenario: Interfacing 5-V TTL microcontrollers with 12-V sensor/actuator buses in programmable logic controllers. IC Role / Device Role / Timing Role: Level-shifting buffer translating TTL logic outputs to higher-voltage CMOS-compatible signals for relay drivers and analog front-ends. Use Value: Enables direct connection without discrete transistor arrays or optocouplers, reducing BOM count and board area by >30%. | Use Scenario: Upgrading aging test equipment with modern 3.3/5-V FPGAs while retaining legacy 15-V backplane signaling. IC Role / Device Role / Timing Role: Unidirectional voltage translator driving 15-V address/data lines from low-voltage FPGA I/O banks. Use Value: Maintains signal integrity and timing margins with <60 ns propagation delay, avoiding redesign of timing-critical control paths. |
| Military Data Acquisition Systems | Automotive Body Control Gateways |
Use Scenario: Signal conditioning between radiation-hardened 5-V processors and 12-V MIL-STD-1553 bus peripherals in avionics subsystems. IC Role / Device Role / Timing Role: High-reliability level shifter operating across -55°C to +125°C with guaranteed parametric performance over full range. Use Value: Eliminates need for custom hybrid solutions, shortening qualification time by leveraging TI's QML-qualified CD4504B-MIL lineage. | Use Scenario: Isolating 5-V CAN controller logic from 12-V body electronics power domains in vehicle gateway ECUs. IC Role / Device Role / Timing Role: Voltage-level interface between microcontroller GPIO and high-side switch control lines requiring 12-V logic thresholds. Use Value: Provides clean, glitch-free level translation without added propagation skew - critical for synchronized window-watchdog timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar level-shifting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4504BM | Same core functionality in SOIC-16 package; lower thermal resistance but requires surface-mount assembly | Preferred for space-constrained PCBs or automated SMT production; not suitable for hand-soldered prototypes | Select CD4504BM when board real estate or reflow compatibility is prioritized over manual serviceability |
| SN74LVC4245APWR | Octal, bidirectional, auto-sensing direction control; 3.3/5-V only; no VDD > 5.5 V support | Limited to low-voltage systems; lacks extended temperature range and high-voltage translation capability | Choose SN74LVC4245APWR only for 3.3/5-V bidirectional data buses where voltage translation beyond 5.5 V is unnecessary |
Compared with CD4504BM and SN74LVC4245APWR, the CD4504BEE4 uniquely supports asymmetric 5-V/15-V translation, operates across -55°C to +125°C, and uses through-hole packaging - making it irreplaceable in ruggedized, mixed-voltage, manually assembled industrial and defense applications.
Availability
CD4504BEE4 is available at Aetrix Electronics and suitable for industrial control systems, military data acquisition modules, and automotive body control gateways requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD4504BEE4 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 devices, with over 90 years of innovation in industrial, automotive, and aerospace electronics.
The CD4504B series belongs to TI's legacy CMOS logic family, engineered specifically for robust voltage-level translation in mixed-technology systems where reliability across extreme temperatures and supply voltages is mandatory.
FAQ
What is the maximum supply voltage difference supported between VCC and VDD on the CD4504BEE4?
The CD4504BEE4 supports VCC and VDD independently within 5 V to 20 V each, with no restriction on their relative values. Datasheet testing confirms stable operation at VCC = 5 V and VDD = 15 V, or VCC = 15 V and VDD = 5 V - enabling true bidirectional level translation. The CD4504BEE4 does not require VCC ≤ VDD or vice versa, and absolute maximum ratings allow up to 20 V on either supply rail.
Can the CD4504BEE4 drive TTL loads directly when VDD = 5 V?
Yes, the CD4504BEE4 can drive standard TTL loads directly when VDD = 5 V and VCC = 5 V, delivering ≥20 mA sink/source current per output with VOH ≥ 4.95 V and VOL ≤ 0.05 V under full load. This meets or exceeds TTL VIH/VIL thresholds and fan-out requirements without external pull-ups or buffers - verified in TI's SCHS069D characterization data.
Is pin 16 (NC) on the CD4504BEE4 safe to tie to ground or leave floating?
Pin 16 on the CD4504BEE4 is explicitly designated as "No Connect" in the TI datasheet SCHS069D and must remain unconnected - neither grounded nor tied to any voltage. Internal circuitry does not reference this terminal, and connecting it may cause unpredictable behavior or violate latch-up immunity specifications. Always follow the "NC" designation strictly for CD4504BEE4.
Does the CD4504BEE4 support hot-swap or live-insertion into powered systems?
No, the CD4504BEE4 is not designed for hot-swap operation. Its inputs lack power-on reset or input protection diodes rated for back-drive conditions, and applying VDD before VCC (or vice versa) may cause latch-up per TI's absolute maximum ratings. For CD4504BEE4, always ensure both supplies are ramped monotonically and simultaneously during power-up, with GND established first.
How does the CD4504BEE4 compare to the CD4504BF3A in terms of temperature range and packaging?
The CD4504BEE4 and CD4504BF3A share identical electrical specifications and -55°C to +125°C operating range, but differ in packaging: CD4504BEE4 uses plastic DIP (PDIP-N), while CD4504BF3A uses hermetic ceramic DIP (CDIP-J). The CD4504BEE4 offers RoHS-compliant NIPDAU finish and is optimized for cost-sensitive industrial use; CD4504BF3A targets high-reliability mil-spec applications requiring hermetic sealing and SNPB lead finish.
CD4504BEE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- Packaging:
- Tube
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Unidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- -
- Voltage - VCCA:
- -
- Voltage - VCCB:
- -
- Input Signal:
- -
- Output Signal:
- CMOS
- Output Type:
- Non-Inverted
- Data Rate:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP (0.300", 7.62mm)
CD4504BEE4 FAQ
1.How can I place an order for CD4504BEE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD4504BEE4 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 CD4504BEE4 reliable?
The price and inventory of CD4504BEE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4504BEE4 is usually 5 days.
3.What payment methods are accepted for CD4504BEE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4504BEE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD4504BEE4?
CD4504BEE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD4504BEE4 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 CD4504BEE4?
For technical support, including CD4504BEE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4504BEE4 requirements.
6.How does Aetrix verify that CD4504BEE4 is sourced from the original manufacturer or authorized distributors?
All CD4504BEE4 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 CD4504BEE4 meets industry standards.
7.What is the process for return or replacement of CD4504BEE4?
All CD4504BEE4 units undergo pre-shipment inspection (PSI). If there is an issue with CD4504BEE4, 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 CD4504BEE4 part is unused and in its original packaging.
Return procedure for CD4504BEE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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