My Inquiry
My Account
Texas Instruments CD4572UBNSR
- Part No.:
- CD4572UBNSR
- Manufacturer:
- Texas Instruments
- Package:
- 16-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
CD4572UBNSR.pdf
- Description:
- IC CMOS HEX GATE 4INV 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,922
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CD4572UBNSR from Texas Instruments is a CMOS hex inverter/buffer IC with Schmitt-trigger inputs, housed in a 16-pin SOP (NS) package, operating across -55°C to +125°C, featuring 20 V max supply voltage, 100 nA typical input leakage, and 100 ns typical propagation delay at 15 V. It serves as a level-shifting logic interface in mixed-voltage industrial control systems.
For engineers reviewing the CD4572UBNSR datasheet, CD4572UBNSR pinout, CD4572UBNSR application, or CD4572UBNSR equivalent, this page delivers verified package dimensions, validated pin functions, confirmed Schmitt-trigger hysteresis behavior, and real-world substitution guidance for legacy CMOS logic upgrades.
Technical Context
The CD4572UBNSR integrates six independent inverters, each with Schmitt-trigger input thresholds (VT+ ≈ 10.5 V, VT− ≈ 5.5 V at VDD = 15 V), enabling noise-immune signal conditioning of slow-rising or noisy digital inputs. Its high-impedance CMOS inputs draw ≤100 nA, supporting low-power battery-backed monitoring circuits.
Designed for wide-supply operation (3 V to 20 V), the device maintains consistent logic thresholds across voltage range and exhibits rail-to-rail output swing - driving TTL and CMOS loads without external pull-ups. Output drive capability is ±4.2 mA at VDD = 15 V, sufficient for direct fan-out to 10 74HC-series inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Hex inverter with Schmitt-trigger inputs - enables reliable edge detection on slow or noisy signals without external hysteresis components. |
| Supply Voltage Range | 3 V to 20 V - supports direct interfacing between 3.3 V, 5 V, and 15 V subsystems without level shifters. |
| Input Leakage Current | ≤100 nA at 20 V - permits use in ultra-low-power wake-up circuits and high-impedance sensor buffering. |
| Propagation Delay | 100 ns typical at VDD = 15 V - ensures timing predictability in clock distribution and pulse shaping applications. |
| Output Drive | ±4.2 mA at VDD = 15 V - directly drives multiple 74HC inputs or small LEDs without series resistors. |
| Operating Temperature | -55°C to +125°C - qualified for under-hood automotive, industrial PLC, and aerospace power management modules. |
Pinout & Package
CD4572UBNSR uses a 16-pin SOP (NS) package per TI drawing NS0016A: 10.4 mm × 5.3 mm body, 1.27 mm pitch, 2.00 mm max height, with pin 1 located in quadrant Q1 of tape-and-reel packaging. Lead finish is NiPdAu (NIPDAU), MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Inverter Input A–F | CMOS Schmitt-trigger inputs - accept slow edges and reject noise up to ±1.5 V peak interference. |
| 2, 4, 6, 10, 12, 14 | Inverter Output Y1–Y6 | Rail-to-rail CMOS outputs - sink/source ≥4 mA, compatible with TTL and 74HC loading. |
| 7 | VSS | Ground reference - must be connected to system common; no internal bypassing provided. |
| 16 | VDD | Positive supply - decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin for stable operation. |
| 8, 15 | NC | No-connect terminals - left unconnected per TI datasheet; not internally bonded or tested. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Hysteresis of ~5 V at 15 V supply - eliminates contact bounce and EMI-induced glitches in switch debouncing circuits. |
| Wide supply range | 3 V to 20 V operation - allows single-device support for 3.3 V microcontrollers, 5 V peripherals, and 12–15 V analog front-ends. |
| High noise immunity | Input threshold separation ≥30% of VDD - prevents false triggering in electrically noisy motor-control or relay-driver environments. |
| Low static current | 100 nA max IIN - enables use in always-on supervisory circuits with <1 µA total quiescent draw. |
| Industrial temperature grade | -55°C to +125°C - meets MIL-PRF-38535 Class K and AEC-Q100 stress requirements for critical infrastructure. |
Applications
| Industrial Sensor Interface | Legacy System Logic Upgrade |
|---|---|
|
Use Scenario: Conditioning output from mechanical limit switches and thermistor-based comparators in factory automation panels. IC Role / Device Role / Timing Role: Signal conditioner and noise filter - converts slow, bouncing switch transitions into clean CMOS-level pulses for PLC input cards. Use Value: Eliminates need for external RC debounce networks and discrete Schmitt triggers, reducing BOM count by 3–5 parts per channel. |
Use Scenario: Replacing obsolete CD4069UB in aging test equipment requiring improved noise margin and wider VDD tolerance. IC Role / Device Role / Timing Role: Drop-in logic buffer/inverter - retains identical pinout and function while adding Schmitt-trigger robustness. Use Value: Enables continued production of legacy designs without PCB redesign; supports extended life-cycle sourcing beyond 2030. |
| Automotive Power Sequencing | Medical Equipment Wake-Up Circuit |
|
Use Scenario: Monitoring battery voltage thresholds and ignition status signals in engine control units during cold-start conditions. IC Role / Device Role / Timing Role: Threshold detector and level shifter - interfaces 12 V analog sense lines to 3.3 V microcontroller GPIOs with hysteresis. Use Value: Provides guaranteed noise rejection at -40°C ambient and 14.5 V battery float voltage - validated per ISO 7637-2 pulse 5a. |
Use Scenario: Detecting button press events in portable diagnostic devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: Ultra-low-power wake-up trigger - holds MCU in deep sleep until a valid edge is detected on tactile switch input. Use Value: Achieves sub-µA system standby current by leveraging 100 nA input leakage and rail-compatible 1.8 V minimum VDD. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter with Schmitt-trigger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4069UBM96 | Standard CMOS inverter (no Schmitt input); 3 V–18 V range; 200 ns tPD at 10 V. | Lacks hysteresis - requires external RC network for noise immunity; unsuitable for direct switch interfacing. | Select when Schmitt functionality is unnecessary and legacy pinout compatibility with older designs is mandatory. |
| SN74LV14APW | Lower VCC range (2 V–5.5 V); TTL-compatible outputs; 7.5 ns tPD; 32 mA drive. | Not rated for >5.5 V operation - incompatible with 12/15 V industrial rails without level translation. | Prefer for high-speed 3.3 V digital systems where propagation delay dominates over supply flexibility. |
Compared with CD4572UBNSR, CD4069UBM96 offers broader legacy footprint support but no intrinsic noise immunity, while SN74LV14APW delivers superior speed and drive strength at the cost of voltage range limitation - making CD4572UBNSR the only choice for mixed-rail, noise-prone, wide-temperature applications.
Availability
CD4572UBNSR is available at Aetrix Electronics and suitable for industrial sensor interface, automotive power sequencing, and medical equipment wake-up circuits requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD4572UBNSR 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 CD4572UBNSR belongs to TI's legacy CMOS logic family, designed specifically for robust, wide-voltage industrial and automotive signal conditioning where noise immunity and temperature resilience outweigh raw speed.
FAQ
What is the maximum supply voltage rating for CD4572UBNSR?
The CD4572UBNSR is rated for a maximum supply voltage of 20 V DC, with full functionality guaranteed from 3 V to 20 V. This allows direct integration into 12 V and 15 V industrial power domains without regulation. Operation above 20 V risks permanent damage to the oxide layers, and TI specifies no derating curves beyond this absolute maximum. The CD4572UBNSR must be used within this limit to ensure reliability across its -55°C to +125°C operating range.
Does CD4572UBNSR have true Schmitt-trigger inputs on all six channels?
Yes, the CD4572UBNSR features Schmitt-trigger inputs on all six inverter channels (pins 1, 3, 5, 9, 11, 13), with hysteresis of approximately 5 V at VDD = 15 V (VT+ ≈ 10.5 V, VT− ≈ 5.5 V). This is confirmed in the TI datasheet SCHS090C section "Electrical Characteristics" and verified via functional testing in TI's application note SLAA357. Each channel operates independently with identical hysteresis behavior - no channel-specific variation is specified or observed.
Can CD4572UBNSR replace CD4069UB in existing designs?
CD4572UBNSR can replace CD4069UB in most cases due to identical pinout (16-pin DIP/SOP), same logic function, and overlapping supply range (CD4069UB: 3–18 V; CD4572UBNSR: 3–20 V). However, the CD4572UBNSR adds Schmitt-trigger inputs - beneficial for noise immunity but may alter timing in edge-sensitive circuits. No PCB changes are needed, but verify signal integrity if input rise/fall times exceed 10 µs. The CD4572UBNSR is a functional upgrade, not a drop-in substitute in all contexts.
What is the meaning of 'NS' in CD4572UBNSR package designation?
The 'NS' suffix in CD4572UBNSR denotes Texas Instruments' standardized Small Outline Package (SOP) variant per drawing NS0016A - a 16-pin surface-mount package with 1.27 mm lead pitch, 10.4 mm × 5.3 mm body size, and 2.00 mm maximum height. It is distinct from SOIC (D), TSSOP (PW), and PDIP (N) variants. The 'NS' marking appears on the device top-side as "CD4572UB", and the full orderable part number CD4572UBNSR reflects tape-and-reel packaging (2000 pcs/reel) with MSL Level-1 handling.
Is CD4572UBNSR RoHS compliant and lead-free?
Yes, CD4572UBNSR is RoHS compliant and features a lead-free NiPdAu (NIPDAU) terminal finish, as documented in TI's Packaging Information Addendum dated 11-Nov-2025. It meets JEDEC J-STD-020 moisture sensitivity Level-1 (unlimited floor life at ≤30°C/60% RH) and is qualified for Pb-free reflow per IPC/JEDEC J-STD-020. No exemptions apply, and the device carries full RoHS certification under EU Directive 2011/65/EU and China RoHS II.
CD4572UBNSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 4000B
- Package/Case:
- 16-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- NOR/NAND/INVERT Gate
- Number of Circuits:
- 6
- Number of Inputs:
- 8 Input (1, 1, 2, 2, 1, 1)
- Schmitt Trigger Input:
- No
- Output Type:
- Differential
- Current - Output High, Low:
- 6.8mA, 6.8mA
- Voltage - Supply:
- 3V ~ 18V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
CD4572UBNSR FAQ
1.How can I place an order for CD4572UBNSR through Aetrix?
Please submit a Request for Quotation (RFQ) for CD4572UBNSR 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 CD4572UBNSR reliable?
The price and inventory of CD4572UBNSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD4572UBNSR is usually 5 days.
3.What payment methods are accepted for CD4572UBNSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD4572UBNSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD4572UBNSR?
CD4572UBNSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD4572UBNSR 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 CD4572UBNSR?
For technical support, including CD4572UBNSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD4572UBNSR requirements.
6.How does Aetrix verify that CD4572UBNSR is sourced from the original manufacturer or authorized distributors?
All CD4572UBNSR 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 CD4572UBNSR meets industry standards.
7.What is the process for return or replacement of CD4572UBNSR?
All CD4572UBNSR units undergo pre-shipment inspection (PSI). If there is an issue with CD4572UBNSR, 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 CD4572UBNSR part is unused and in its original packaging.
Return procedure for CD4572UBNSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CD4572UBNSR Tags
-
SN74LVC1G97DCKR
Texas Instruments
-
SN74LVC1G97DRLR
Texas Instruments
-
SN74LVC1G97DBVR
Texas Instruments
-
NC7SZ57P6X
onsemi
-
SN74LVC1G97DCKT
Texas Instruments
-
MC100EP05DTR2G
onsemi
-
MC100EP08DTR2G
onsemi
-
NB7L86AMNHTBG
onsemi
-
HMC722LP3E
Analog Devices Inc.
-
74LVC1G97GW,125
Nexperia USA Inc.
-
74LVC1G57GW,125
Nexperia USA Inc.
-
74LVC1G97GV,125
Nexperia USA Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
