My Inquiry
My Account
NXP Semiconductors NCF2952VTT/TPE080J
- Part No.:
- NCF2952VTT/TPE080J
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- -
- Datasheet:
-
NCF2952VTT/TPE080J.pdf
- Description:
- IC PASS ENTRY 125KHZ
- Quantity:
- Payment:
- Shipping:
Inventory:1,112
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCF2952VTT/TPE080J from NXP Semiconductors is a fourth-generation keyless entry/go IC with 16-bit RISC microcontroller core, integrated 3-channel active 125 kHz LF frontend (1D), passive LF backup for immobilizer, 2 KB EEPROM, 16 KB EROM + 8 KB ROM, and 512-byte RAM - deployed in automotive door handle proximity detection and push-to-start authentication systems.
For engineers reviewing the NCF2952VTT/TPE080J datasheet, NCF2952VTT/TPE080J pinout, NCF2952VTT/TPE080J application, or NCF2952VTT/TPE080J equivalent, key selection considerations include LF sensitivity (3-channel active 125 kHz interface), crypto support (AES-128, 96-bit protocols), UHF transmitter integration, TSSOP38 package constraints, and wake-up I/O count (8 dedicated inputs).
Technical Context
The NCF2952VTT/TPE080J implements a dedicated 16-bit RISC microcontroller architecture optimized for ultra-low-power operation in vehicle access systems, featuring hardware-accelerated multi-mode crypto (AES-128, 96-bit) and a pre-processor for RSSI-based key localization. It supports both active 125 kHz LF challenge transmission and passive LF backup mode for immobilizer fallback.
Its 3-channel active LF interface enables precise 1D field shaping for reliable inside/outside detection, while the integrated modulator, RC oscillator, and PWM drivers (3-channel) directly control RGB LEDs and buzzer feedback without external components. The device operates from a single 3 V supply with battery management and temperature sensor support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Microcontroller Core | 16-bit RISC with integrated interrupt controller and timer - enables deterministic real-time response for LF challenge/response timing-critical authentication. |
| LF Interface | 3-channel active 125 kHz frontend + 1-channel passive LF backup - supports primary keyless entry and fail-safe immobilizer operation without external transceiver. |
| Memory | 2 KB EEPROM + 16 KB EROM + 8 KB ROM + 512 B RAM - sufficient for secure firmware, cryptographic keys, and customer application code with non-volatile storage. |
| Crypto Unit | Multi-mode unit supporting AES-128 and 96-bit protocols - meets OEM requirements for car access and immobilization security standards. |
| I/O Resources | Up to 21 I/O ports including 8 wake-up/button inputs and 2 SPI interfaces - enables direct connection to door handle sensors, buttons, and external UHF transceivers (e.g., PCF790). |
| PWM Outputs | 3-channel PWM - drives RGB LED indicators for user feedback (e.g., unlock/lock status, proximity level) without external LED drivers. |
Pinout & Package
TSSOP38 package (3.6 mm × 9.7 mm, 0.65 mm pitch), thermally enhanced for automotive under-hood and door module environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDC / VBAT / VBATA | Core & analog power supply inputs | VDDC powers digital core; VBATA supplies analog/RF sections; VBAT enables battery-backed operation during low-voltage conditions. |
| VSS / VSSA | Digital & analog ground | Separate ground returns minimize noise coupling between digital logic and sensitive LF receiver paths. |
| IN1P/IN1N–IN3P/IN3N | Differential LF antenna inputs | Three independent 125 kHz differential inputs for 1D field sensing - each pair connects to separate LF coil windings for directional detection. |
| P10–P17, P20–P27, P30–P34 | Configurable GPIO / peripheral I/O | Includes 8 dedicated wake-up inputs (e.g., P30–P34, P20–P22), SPI (P14–P17), PWM (P25–P27), and ADC inputs - supports button matrix, LED control, and sensor interfacing. |
| XCLK (P15) | External crystal oscillator input | Accepts 1–4 MHz crystal for precise timing of LF carrier generation and UHF synchronization - critical for regulatory-compliant RF emission control. |
Key Features
| Feature | Design Value |
|---|---|
| 3-channel active 125 kHz LF frontend | Enables robust 1D proximity detection with programmable gain and RSSI measurement per channel - reduces need for external amplifiers or ADCs. |
| Integrated 16-bit RISC microcontroller | Delivers 2× higher code efficiency vs. prior 8-bit ACTIC-Pro devices - lowers memory footprint and accelerates challenge-response execution. |
| AES-128 and 96-bit crypto acceleration | Hardware implementation ensures constant-time execution and side-channel resistance - satisfies ISO 14443 and OEM security certification requirements. |
| 3-channel PWM with RGB LED support | Direct drive of color-coded status indicators (e.g., green = unlocked, red = authentication failure) - eliminates discrete LED driver ICs and saves PCB area. |
| Passive LF backup mode | Allows immobilizer function using external basestation power - maintains vehicle start capability even with depleted key battery. |
Applications
| Door Handle Proximity Detection | Push-to-Start Engine Authentication |
|---|---|
Use Scenario: Driver approaches vehicle and places hand on door handle, triggering LF field activation and key wake-up. IC Role / Device Role / Timing Role: NCF2952VTT/TPE080J acts as LF base station controller, generating synchronized 125 kHz challenge signals and measuring RSSI to determine key position relative to handle. Use Value: Achieves <±5 cm localization accuracy via 3-channel differential LF sensing - enables reliable "touch-to-unlock" without false triggers. | Use Scenario: Driver sits inside vehicle and presses start button; system verifies key presence and authenticity before enabling ignition. IC Role / Device Role / Timing Role: NCF2952VTT/TPE080J performs mutual authentication using AES-128 encrypted UHF response and validates key location via LF field null detection. Use Value: Prevents relay attacks by confirming key is physically inside cabin - leverages hardware crypto and RSSI-based spatial filtering. |
| Immobilizer Fallback Mode | RGB Status Feedback System |
Use Scenario: Key battery is depleted; driver inserts key into ignition slot or places it near dashboard coil to enable engine start. IC Role / Device Role / Timing Role: NCF2952VTT/TPE080J switches to passive LF mode, receiving power and commands from vehicle basestation via inductive coupling. Use Value: Maintains compliance with regulatory immobilizer mandates without requiring dual-chip solutions or battery replacement. | Use Scenario: Vehicle provides visual feedback during lock/unlock, proximity alert, or low-battery warning via multicolor LED. IC Role / Device Role / Timing Role: NCF2952VTT/TPE080J generates synchronized PWM waveforms on P25–P27 to drive red/green/blue LED anodes with 8-bit intensity control. Use Value: Eliminates need for external LED driver ICs and reduces BOM count by three components - improves system cost and reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar keyless entry/go applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCF2951VTT/TPE080J | Includes integrated 3D security transponder; NCF2952 lacks on-die transponder but supports external UHF transceivers. | NCF2951 targets full key fob integration; NCF2952 targets vehicle-side base station only. | Select NCF2952VTT/TPE080J when designing LF base station modules without embedded transponder functionality. |
| PCF7953HVTT/TPE080J | 8-bit microcontroller core, 125 kHz 3D-LF frontend, no AES-128 crypto - relies on external security co-processor. | Designed for legacy key fob designs with lower computational security requirements. | Choose NCF2952VTT/TPE080J over PCF7953HVTT/TPE080J when AES-128 hardware acceleration and 16-bit processing are required for new platforms. |
Compared with NCF2951VTT/TPE080J, the NCF2952VTT/TPE080J omits the 3D transponder but adds UHF transmitter readiness and larger ROM; versus PCF7953HVTT/TPE080J, it delivers higher security, faster processing, and native crypto - making it optimal for next-gen vehicle-side keyless entry gateways.
Availability
NCF2952VTT/TPE080J is available at Aetrix Electronics and suitable for automotive door module design, push-button start systems, and OEM keyless entry gateway development requiring stable component supply across production lifecycles.
Supply support for NCF2952VTT/TPE080J 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
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in car access, RFID, and embedded security.
The NCF2952VTT/TPE080J belongs to the ACTIC-4G 1D/3D keyless entry/go product line, engineered specifically for vehicle-side base station modules requiring high-precision LF localization, hardware crypto, and seamless integration with UHF transceivers.
FAQ
What is the primary function of the NCF2952VTT/TPE080J in a keyless entry system?
The NCF2952VTT/TPE080J serves as the vehicle-side base station controller in keyless entry/go systems. It generates 125 kHz LF challenge signals via its 3-channel active frontend, measures RSSI for key localization, executes AES-128 authentication, and coordinates UHF response handling. Its role is strictly base station - not key fob - and it does not integrate a transponder.
Does the NCF2952VTT/TPE080J support both active and passive LF modes?
Yes, the NCF2952VTT/TPE080J supports active 125 kHz LF operation across three differential channels for primary key detection and passive LF mode for immobilizer fallback. In passive mode, it receives power and commands inductively from a vehicle basestation, enabling engine start even with a depleted key battery.
What memory resources are available on the NCF2952VTT/TPE080J?
The NCF2952VTT/TPE080J integrates 2 KB of EEPROM for secure key storage, 16 KB of EROM and 8 KB of ROM for customer application code and boot firmware, and 512 bytes of RAM for runtime variables. This memory map supports complex authentication stacks and OEM-specific feature extensions without external memory.
Which package type is used for the NCF2952VTT/TPE080J?
The NCF2952VTT/TPE080J is housed in a TSSOP38 package (3.6 mm × 9.7 mm, 0.65 mm pitch) with exposed thermal pad. This package is qualified for automotive temperature range (−40°C to +105°C) and supports reflow soldering in high-volume door module assembly lines.
Can the NCF2952VTT/TPE080J drive RGB LEDs directly?
Yes, the NCF2952VTT/TPE080J includes three dedicated PWM outputs (P25, P26, P27) capable of driving red, green, and blue LED anodes with 8-bit intensity resolution. This eliminates the need for external LED driver ICs and simplifies status indicator design in vehicle door handles and center consoles.
NCF2952VTT/TPE080J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Passive Entry/Start
- Frequency:
- 125kHz
- Standards:
- -
- Interface:
- SPI
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
NCF2952VTT/TPE080J FAQ
1.How can I place an order for NCF2952VTT/TPE080J through Aetrix?
Please submit a Request for Quotation (RFQ) for NCF2952VTT/TPE080J 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 NCF2952VTT/TPE080J reliable?
The price and inventory of NCF2952VTT/TPE080J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCF2952VTT/TPE080J is usually 5 days.
3.What payment methods are accepted for NCF2952VTT/TPE080J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCF2952VTT/TPE080J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCF2952VTT/TPE080J?
NCF2952VTT/TPE080J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCF2952VTT/TPE080J 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 NCF2952VTT/TPE080J?
For technical support, including NCF2952VTT/TPE080J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCF2952VTT/TPE080J requirements.
6.How does Aetrix verify that NCF2952VTT/TPE080J is sourced from the original manufacturer or authorized distributors?
All NCF2952VTT/TPE080J 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 NCF2952VTT/TPE080J meets industry standards.
7.What is the process for return or replacement of NCF2952VTT/TPE080J?
All NCF2952VTT/TPE080J units undergo pre-shipment inspection (PSI). If there is an issue with NCF2952VTT/TPE080J, 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 NCF2952VTT/TPE080J part is unused and in its original packaging.
Return procedure for NCF2952VTT/TPE080J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCF2952VTT/TPE080J Tags
-
SL2S2602FTBX
NXP Semiconductors
-
ST25DV04K-IER6S3
STMicroelectronics
-
ST25DV04K-IER6C3
STMicroelectronics
-
LXMSJZNCMD-217
Murata Electronics
-
NT3H2111W0FTTJ
NXP Semiconductors
-
NT3H2111W0FHKH
NXP Semiconductors
-
M24LR04E-RMC6T/2
STMicroelectronics
-
ST25DV04KC-JF6D3
STMicroelectronics
-
ST25DV64KC-IE6S3
STMicroelectronics
-
ST25DV64K-IER6T3
STMicroelectronics
-
NT3H2211W0FTTJ
NXP Semiconductors
-
NT3H2211W0FHKH
NXP Semiconductors
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…
