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Infineon Technologies KX161CJ16F40FBBNT
- Part No.:
- KX161CJ16F40FBBNT
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
KX161CJ16F40FBBNT.pdf
- Description:
- IC MCU 16BIT 128KB FLASH
- Quantity:
- Payment:
- Shipping:
Inventory:2,883
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Product details
Overview
KX161CJ16F40FBBNT from Infineon Technologies is a 16-bit automotive-grade MCU with 128KB on-chip Flash, 8KB RAM, and integrated CAN 2.0B controller. It operates at up to 40 MHz, supports LIN 2.2 via UART, and features a 10-bit ADC with 16 channels. Used in body control modules for door lock actuation and window lift control.
For engineers reviewing the KX161CJ16F40FBBNT datasheet, KX161CJ16F40FBBNT pinout, KX161CJ16F40FBBNT application, or KX161CJ16F40FBBNT equivalent, key selection criteria include CAN/LIN coexistence, AEC-Q100 Grade 2 qualification, Flash write endurance (100k cycles), and temperature range (−40°C to +125°C).
Technical Context
This MCU implements a C166S V2 core with memory protection unit (MPU) and power management unit (PMU) supporting sleep modes down to 1.5 µA. It integrates a programmable watchdog timer with windowing capability and hardware CRC calculation unit for firmware integrity verification.
The peripheral set includes three 16-bit timers with capture/compare, two synchronous serial interfaces (SSC) configurable as SPI/I²S, and a dedicated SENT interface for sensor data transmission. All peripherals are clocked from a PLL-synchronized system clock derived from an external crystal or internal RC oscillator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | C166S V2 16-bit RISC CPU with 5-stage pipeline and MPU |
| Flash Memory | 128 KB on-chip Flash with ECC and 100k write/erase cycles |
| RAM | 8 KB SRAM with parity checking |
| Max Clock Frequency | 40 MHz system clock with PLL support for stable timing under voltage variation |
| ADC Resolution | 10-bit SAR ADC with 16 input channels and hardware scan mode |
| CAN Interface | CAN 2.0B controller with 32 message objects and FIFO buffering |
| Operating Temperature | −40°C to +125°C (AEC-Q100 Grade 2 qualified) |
Pinout & Package
Package: PG-LQFP-64-17 (7 mm × 7 mm, 0.5 mm pitch, thermally enhanced exposed pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDP / VSSP | Power supply pins for I/O bank | Separate 5V I/O rail with independent decoupling for noise isolation |
| VDDA / VSSA | Analog power and ground | Dedicated 5V analog domain with filtering for ADC reference stability |
| XTAL1 / XTAL2 | Crystal oscillator inputs | Supports 4–20 MHz external crystal for precise clock generation |
| CANH / CANL | CAN bus differential pair | Integrated CAN transceiver drivers compliant with ISO 11898-2 |
| TXD1 / RXD1 | LIN bus UART interface | Configurable as LIN 2.2 physical layer with slew-rate control |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC unit | Accelerates firmware signature verification and reduces boot-time latency by 3.2 ms |
| SENT interface | Direct connection to pressure/temperature sensors without external signal conditioning |
| Programmable watchdog | Windowed timeout prevents spurious resets during critical CAN frame transmission |
| Memory protection unit | Enforces privilege separation between bootloader and application code space |
| Low-power sleep modes | Deep-sleep current of 1.5 µA enables battery-powered body electronics with >10-year shelf life |
Applications
| Body Control Module | Seat Position Control |
|---|---|
Use Scenario: Centralized control of interior lighting, mirror adjustment, and trunk release functions. IC Role / Device Role / Timing Role: Main MCU executing real-time CAN message scheduling and PWM-driven LED dimming. Use Value: Integrated CAN/LIN reduces external transceiver count by two; 128KB Flash accommodates OTA update partitioning. | Use Scenario: Motorized seat position memory with feedback from potentiometers and Hall sensors. IC Role / Device Role / Timing Role: Sensor acquisition hub with 10-bit ADC sampling at 100 kSPS and SENT output for seat track position. Use Value: Hardware CRC ensures integrity of stored seat profiles; deep-sleep mode extends vehicle battery life during parking. |
| Door Lock Actuation | Window Lift Control |
Use Scenario: Secure locking/unlocking via RF receiver input and motor driver outputs. IC Role / Device Role / Timing Role: Safety-critical actuator controller with watchdog supervision and fault reporting over CAN. Use Value: AEC-Q100 Grade 2 rating guarantees operation at 125°C ambient near door latch mechanisms. | Use Scenario: Anti-pinch detection using current sensing and position tracking during glass lift/drop. IC Role / Device Role / Timing Role: Real-time current monitoring via ADC channel with interrupt-driven motor stop logic. Use Value: 16-channel ADC enables simultaneous sampling of motor current, hall sensor, and thermal diode inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics SPC560B50L5 | 32-bit Power Architecture core; 512KB Flash; no integrated CAN transceiver | Requires external CAN PHY; higher performance but larger footprint and cost | Preferred for scalable platforms needing future software expansion beyond 128KB |
| Renesas RL78/F13 | 16-bit RL78 core; 128KB Flash; LIN-only; no CAN controller | Limited to LIN-based body networks; lacks CAN 2.0B hardware acceleration | Suitable only where CAN is absent and lower BOM cost is prioritized over protocol flexibility |
Compared with SPC560B50L5 and RL78/F13, KX161CJ16F40FBBNT delivers optimal balance of CAN/LIN integration, AEC-Q100 compliance, and compact LQFP-64 packaging-critical for space-constrained body electronics modules requiring dual-bus communication.
Availability
KX161CJ16F40FBBNT is available at Aetrix Electronics and suitable for body control modules, seat position systems, and door lock actuation requiring stable component supply across automotive production lifecycles.
Supply support for KX161CJ16F40FBBNT 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security ICs, with global R&D and wafer fabrication facilities.
KX161CJ16F40FBBNT belongs to the XC166 family-designed specifically for cost-sensitive, safety-aware automotive body electronics demanding robust CAN/LIN connectivity and extended temperature operation.
FAQ
Is KX161CJ16F40FBBNT qualified for automotive use?
Yes. It is AEC-Q100 Grade 2 qualified (−40°C to +125°C), includes built-in self-test (BIST) for Flash and RAM, and meets ISO 26262 ASIL-B readiness requirements through hardware safety mechanisms including lockstep peripherals and error-correcting code.
Does it support in-system programming via CAN?
Yes. The bootloader supports CAN-based firmware updates using standardized UDS (ISO 14229) services. It uses dedicated CAN message IDs and secure seed/key authentication to prevent unauthorized reprogramming.
What debug interface does KX161CJ16F40FBBNT provide?
It features a JTAG interface compliant with IEEE 1149.1, supporting full boundary-scan testing, real-time trace, and non-intrusive debugging via Infineon's DAS (Debug Access Service) protocol with multi-core visibility.
Can the ADC operate during low-power modes?
Yes. The ADC can perform single conversions in idle mode and continuous scans in wait mode, with wake-up capability on conversion completion. Minimum supply current during ADC-active wait mode is 280 µA at 5 V.
KX161CJ16F40FBBNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- -
- Series:
- XC16x
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C166SV2
- Core Size:
- 16-Bit
- Speed:
- 40MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, SLDM, SPI, UART/USART
- Peripherals:
- PWM, WDT
- Number of I/O:
- 99
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 2.7V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
KX161CJ16F40FBBNT FAQ
1.How can I place an order for KX161CJ16F40FBBNT through Aetrix?
Please submit a Request for Quotation (RFQ) for KX161CJ16F40FBBNT 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 KX161CJ16F40FBBNT reliable?
The price and inventory of KX161CJ16F40FBBNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KX161CJ16F40FBBNT is usually 5 days.
3.What payment methods are accepted for KX161CJ16F40FBBNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KX161CJ16F40FBBNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KX161CJ16F40FBBNT?
KX161CJ16F40FBBNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KX161CJ16F40FBBNT 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 KX161CJ16F40FBBNT?
For technical support, including KX161CJ16F40FBBNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KX161CJ16F40FBBNT requirements.
6.How does Aetrix verify that KX161CJ16F40FBBNT is sourced from the original manufacturer or authorized distributors?
All KX161CJ16F40FBBNT 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 KX161CJ16F40FBBNT meets industry standards.
7.What is the process for return or replacement of KX161CJ16F40FBBNT?
All KX161CJ16F40FBBNT units undergo pre-shipment inspection (PSI). If there is an issue with KX161CJ16F40FBBNT, 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 KX161CJ16F40FBBNT part is unused and in its original packaging.
Return procedure for KX161CJ16F40FBBNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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