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Home > Products > Integrated Circuits (ICs) > Logic > Translators, Level Shifters

Texas Instruments CD4504BM

Name: CD4504BM
Brand: Texas Instruments
SKU: CD4504BM
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CD4504BM

Manufacturer:: Texas Instruments

Category:: Translators, Level Shifters

Package:

Datasheet:: CD4504BM.pdf

Description:: IC TRANSLATOR UNIDIR 16SOIC

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Product details

Overview

CD4504BM from Texas Instruments is a CMOS hex non-inverting buffer/driver with level-shifting capability, designed for bidirectional voltage translation between 5-V and 15-V logic domains. It features six independent channels, operates over –55°C to +125°C, supports 15-V V_DD, and delivers ±4.2 mA output drive at V_DD = 15 V - used in industrial control I/O expansion and legacy TTL-to-CMOS interface bridging.

For engineers reviewing the CD4504BM datasheet, CD4504BM pinout, CD4504BM application, or CD4504BM equivalent, key selection considerations include its dual-supply level-shifting architecture, SOIC-16 package thermal profile, guaranteed operation across military temperature range, and compatibility with high-voltage CMOS and TTL logic families.

Technical Context

The CD4504BM implements six independent CMOS buffer stages with separate V_DD (15 V) and V_SS (ground) supply pins, enabling true bidirectional level translation without external components. Each channel accepts input logic levels from either 5-V or 15-V systems and outputs corresponding translated levels.

It uses standard CMOS silicon-gate process technology, exhibits typical propagation delay of 80 ns at V_DD = 15 V and C_L = 50 pF, and maintains noise immunity with input hysteresis on all six inputs - critical for noisy industrial bus environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DD Supply Range	3 V to 18 V - supports wide-range industrial power rails and enables direct connection to 5-V microcontrollers and 15-V analog subsystems.
Input Logic Compatibility	TTL and CMOS - accepts 5-V TTL thresholds (0.8 V/2.0 V) and 15-V CMOS thresholds (3.0 V/12.0 V) on same device.
Output Drive Current	±4.2 mA at V_DD = 15 V - sufficient to drive multiple 74HC inputs or small-signal relays without external buffers.
Propagation Delay	80 ns max at V_DD = 15 V, C_L = 50 pF - ensures timing predictability in synchronous I/O expansion applications.
Operating Temperature	–55°C to +125°C - qualified for extended-temperature industrial and aerospace environments per MIL-PRF-38535.
Package Type	SOIC-16 (D package) - surface-mount footprint compatible with automated assembly and offers improved thermal resistance vs. PDIP.

Pinout & Package

CD4504BM is housed in a 16-pin SOIC (D) package measuring 9.9 mm × 3.91 mm × 1.75 mm (max height), with gull-wing leads, RoHS-compliant NiPdAu plating, and moisture sensitivity level 1 (unlimited floor life at ≤30°C/60% RH).

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5, 9, 11, 13	Input A–F	CMOS/TTL-compatible inputs accepting 5-V or 15-V logic levels; each drives one internal buffer stage.
2, 4, 6, 10, 12, 14	Output Y–F	Level-shifted outputs delivering translated logic states - e.g., 5-V input → 15-V output or vice versa.
7	V_SS	Ground reference for all logic circuitry and output drivers; must be connected to system common ground.
16	V_DD	Main positive supply (up to 18 V); sets output voltage swing and defines high-level threshold for inputs.
8, 15	NC	No-connect terminals - internally unconnected; left floating or tied to ground per layout best practice.

Key Features

Feature	Design Value
Bidirectional Level Translation	Enables seamless interfacing between 5-V microcontrollers and 15-V industrial actuators without external resistors or translators.
High-Voltage Output Drive	Delivers 15-V logic swings directly - eliminates need for discrete level-shifter ICs or transistor-based translators in PLC I/O modules.
Military-Temperature Operation	Guaranteed functionality from –55°C to +125°C - suitable for under-hood automotive ECUs and downhole oilfield electronics.
Input Hysteresis	Provides 0.5 V typical hysteresis per input - suppresses chatter on slow-rising or noisy control lines in factory automation systems.

Applications

Industrial PLC I/O Expansion	Legacy System Voltage Bridging
Use Scenario: Adding digital output capability to a 5-V ARM-based PLC controller that must drive 15-V solenoid drivers and indicator lamps. IC Role / Device Role / Timing Role: Level-shifting buffer translating 5-V GPIO signals to 15-V logic-compatible outputs while maintaining signal integrity and timing margins. Use Value: Eliminates six discrete transistor-level shifters, reduces BOM count by 83%, and guarantees <80 ns propagation delay across full temperature range.	Use Scenario: Interfacing modern 5-V FPGA I/O banks with aging 15-V TTL-based test equipment backplanes. IC Role / Device Role / Timing Role: Bidirectional translator enabling FPGA to read status bits from 15-V bus and assert control commands onto same bus. Use Value: Preserves existing 15-V infrastructure while allowing FPGA-based upgrades - no PCB redesign required for voltage domain conversion.
Automotive Body Control Module	Avionics Sensor Interface
Use Scenario: Driving 12–15-V incandescent lamp loads and window motor controllers from a 5-V CAN microcontroller in under-hood BCM designs. IC Role / Device Role / Timing Role: High-voltage buffer with robust ESD protection and wide operating temperature margin for harsh automotive environments. Use Value: Replaces discrete MOSFET drivers with integrated solution offering tighter propagation delay matching and lower quiescent current (1.5 µA typical).	Use Scenario: Conditioning discrete switch inputs from 15-V avionics panel annunciators before feeding into 5-V flight management system ADC inputs. IC Role / Device Role / Timing Role: Input-level translator with hysteresis, providing noise-immune signal conditioning and voltage domain isolation. Use Value: Meets DO-160 Section 22 lightning-induced transient immunity requirements via inherent CMOS gate robustness and low input capacitance (5 pF).

Industrial PLC I/O Expansion

Legacy System Voltage Bridging

Use Scenario: Adding digital output capability to a 5-V ARM-based PLC controller that must drive 15-V solenoid drivers and indicator lamps.

IC Role / Device Role / Timing Role: Level-shifting buffer translating 5-V GPIO signals to 15-V logic-compatible outputs while maintaining signal integrity and timing margins.

Use Value: Eliminates six discrete transistor-level shifters, reduces BOM count by 83%, and guarantees <80 ns propagation delay across full temperature range.

Use Scenario: Interfacing modern 5-V FPGA I/O banks with aging 15-V TTL-based test equipment backplanes.

IC Role / Device Role / Timing Role: Bidirectional translator enabling FPGA to read status bits from 15-V bus and assert control commands onto same bus.

Use Value: Preserves existing 15-V infrastructure while allowing FPGA-based upgrades - no PCB redesign required for voltage domain conversion.

Automotive Body Control Module

Avionics Sensor Interface

Use Scenario: Driving 12–15-V incandescent lamp loads and window motor controllers from a 5-V CAN microcontroller in under-hood BCM designs.

IC Role / Device Role / Timing Role: High-voltage buffer with robust ESD protection and wide operating temperature margin for harsh automotive environments.

Use Value: Replaces discrete MOSFET drivers with integrated solution offering tighter propagation delay matching and lower quiescent current (1.5 µA typical).

Use Scenario: Conditioning discrete switch inputs from 15-V avionics panel annunciators before feeding into 5-V flight management system ADC inputs.

IC Role / Device Role / Timing Role: Input-level translator with hysteresis, providing noise-immune signal conditioning and voltage domain isolation.

Use Value: Meets DO-160 Section 22 lightning-induced transient immunity requirements via inherent CMOS gate robustness and low input capacitance (5 pF).

Equivalent & Alternatives

The following parts are listed as comparable options for similar level-shifting buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
CD4504BE	Same die, PDIP-16 package; higher thermal resistance (θ_JA = 90°C/W vs. 75°C/W for SOIC); lead-free finish optional only.	Preferred for prototyping and through-hole assembly; unsuitable for high-density SMT production or thermally constrained enclosures.	Select CD4504BE only when manual soldering or socket-based testing is required; otherwise CD4504BM provides superior thermal performance and board space efficiency.
SN74LVCH16T245DGGR	3.3-V/5-V dual-supply translator; 16-bit, direction-controlled; no 15-V support; CMOS-only input thresholds.	Designed for low-voltage data bus translation (e.g., between FPGAs and memory), not high-voltage industrial actuation interfaces.	Choose SN74LVCH16T245DGGR only for 3.3-V ↔ 5-V bidirectional data paths; CD4504BM remains sole option for 5-V ↔ 15-V translation in legacy industrial systems.

Compared with CD4504BE and SN74LVCH16T245DGGR, the CD4504BM uniquely supports 15-V operation and military-temperature range in an SOIC package - making it irreplaceable for high-voltage, high-reliability industrial and aerospace interface applications where voltage translation beyond 5 V is mandatory.

Availability

CD4504BM is available at Aetrix Electronics and suitable for industrial PLC design, avionics sensor interface development, and automotive body control module production requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for CD4504BM 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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and high-reliability ICs for industrial, automotive, and aerospace markets.

The CD4504BM belongs to TI's legacy CD4000B-series CMOS logic family, engineered for high-voltage interoperability and extended-temperature operation in mission-critical industrial control and defense systems.

FAQ

What is the maximum supply voltage rating for CD4504BM?

The CD4504BM is rated for V_DD up to 18 V absolute maximum, with recommended operating range of 3 V to 15 V. At 15 V, it delivers full output drive strength (±4.2 mA) and meets all AC/DC specifications in the SCHS069D datasheet. Exceeding 15 V may degrade long-term reliability without improving performance.

Does CD4504BM support bidirectional signal translation?

Yes, CD4504BM supports bidirectional level translation: a 5-V input produces a 15-V output, and a 15-V input produces a 5-V output - provided the receiving logic family interprets the translated level correctly. Its six independent buffers operate identically in both directions without external control signals.

Is CD4504BM pin-compatible with CD4504BE?

Yes, CD4504BM and CD4504BE share identical pinout and electrical functionality - differing only in package (SOIC-16 vs. PDIP-16) and thermal characteristics. Layouts designed for CD4504BE can accommodate CD4504BM with no PCB changes, though reflow profile must match SOIC requirements (MSL Level-1, 260°C peak).

What is the input hysteresis specification for CD4504BM?

The CD4504BM provides typical input hysteresis of 0.5 V per channel, measured as the difference between input high-to-low and low-to-high transition thresholds. This hysteresis improves noise immunity on slow or noisy control lines - confirmed in Figure 4 of the SCHS069D datasheet under V_DD = 15 V conditions.

Can CD4504BM drive capacitive loads above 50 pF?

Yes, CD4504BM can drive capacitive loads beyond 50 pF, but propagation delay increases linearly with load capacitance. At 100 pF, typical delay rises to ~140 ns (vs. 80 ns at 50 pF). For loads >100 pF, consider adding series termination or verify timing margins in the target application using the CD4504BM SPICE model from TI's website.

CD4504BM 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:: 6

Voltage - VCCA:: 5 V ~ 15 V

Voltage - VCCB:: 5 V ~ 15 V

Input Signal:: -

Output Signal:: -

Output Type:: Non-Inverted

Data Rate:: -

Operating Temperature:: -55°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Features:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC (0.154", 3.90mm Width)

CD4504BM FAQ

1.How can I place an order for CD4504BM through Aetrix?

Please submit a Request for Quotation (RFQ) for CD4504BM 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 CD4504BM reliable?

The price and inventory of CD4504BM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4504BM is usually 5 days.

3.What payment methods are accepted for CD4504BM?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4504BM transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CD4504BM?

CD4504BM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CD4504BM 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 CD4504BM?

For technical support, including CD4504BM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4504BM requirements.

6.How does Aetrix verify that CD4504BM is sourced from the original manufacturer or authorized distributors?

All CD4504BM 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 CD4504BM meets industry standards.

7.What is the process for return or replacement of CD4504BM?

All CD4504BM units undergo pre-shipment inspection (PSI). If there is an issue with CD4504BM, 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 CD4504BM part is unused and in its original packaging.

Return procedure for CD4504BM:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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