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Infineon Technologies SAB-C161JI-LF CA
- Part No.:
- SAB-C161JI-LF CA
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
SAB-C161JI-LF CA.pdf
- Description:
- IC MCU 16BIT ROMLESS 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,896
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Product details
Overview
SAB-C161JI-LF from Infineon Technologies is a 16-bit single-chip microcontroller in the C166 family, featuring an on-chip SDLM interface compliant with SAE J1850 Class 2, 25 MHz CPU clock, 2 KB IRAM, 8 KB XRAM, and no on-chip mask ROM. It serves as a vehicle network controller for automotive body electronics requiring robust serial diagnostics.
For engineers reviewing the SAB-C161JI-LF datasheet, SAB-C161JI-LF pinout, SAB-C161JI-LF application, or SAB-C161JI-LF equivalent, key selection criteria include SDLM protocol support, 128-pin TQFP package compatibility, 25 MHz real-time execution capability, and absence of embedded program memory requiring external boot source.
Technical Context
The SAB-C161JI-LF implements a 4-stage pipeline 16-bit CPU delivering 12.5 MIPS at 25 MHz, with single-cycle context switching and register-based architecture optimized for real-time OS integration. Its peripheral set centers on vehicle communication: dedicated SDLM module (J1850 Class 2), 12-channel 10-bit ADC with 7.8 µs minimum conversion time, and dual 16-channel capture/compare units for precise timing control.
Power management includes idle, sleep, and power-down modes with programmable watchdog and oscillator watchdog. External bus interface supports up to 16 MB address space with five chip-select signals, demultiplexed/multiplexed 8-/16-bit data paths, and hold/halt arbitration-enabling flexible expansion for diagnostic gateways and body control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 16-bit C166-compatible with 4-stage pipeline, enabling 12.5 MIPS at 25 MHz for deterministic real-time task scheduling |
| SDLM Interface | SAE J1850 Class 2 compliant serial data link module, supporting diagnostic message framing and error detection in automotive networks |
| ADC Resolution | 10-bit successive approximation ADC with 12 input channels, programmable sample time down to 7.8 µs for sensor signal acquisition |
| Timer Resources | Two multi-functional GPT units providing five independent timers, plus two 16-channel capture/compare units for PWM and event timing |
| Memory Configuration | No on-chip mask ROM; 2 KB IRAM + 8 KB XRAM for runtime data and stack, requiring external program memory or bootstrap loader initialization |
| Package | 128-pin TQFP (14 × 14 mm, 0.4 mm pitch), supporting high I/O count (up to 93 GPIO) with configurable input thresholds and hysteresis |
| Interrupt System | 16-priority-level interrupt controller with 59 sources and 40 ns minimum sample rate, enabling sub-microsecond response to vehicle bus events |
Pinout & Package
128-pin TQFP package (14 × 14 mm, 0.4 mm pitch) with exposed thermal pad; pin functions include multiplexed address/data bus (Port 0–1, Port 4–5), dedicated SDLM lines (P9.0/SDA0, P9.1/SCL0, P9.2/SDA1, P9.3/SCL1, P9.4/SDA2), and peripheral-specific signals (e.g., P3.10/TxD0, P3.11/RxD0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RSTIN / RSTOUT | Reset input/output | Asynchronous reset assertion (RSTIN) and synchronized reset output (RSTOUT) for system-level reset coordination |
| P9.0/SDA0 – P9.4/SDA2 | SDLM data lines | Five bidirectional pins supporting J1850 Class 2 half-duplex data transfer with configurable pull-up/pull-down |
| P3.10/TxD0, P3.11/RxD0 | UART channel 0 | Full-duplex asynchronous serial interface for debug, configuration, or secondary diagnostics |
| P5.0/AN0 – P5.15/AN15 | Analog inputs | 16-channel 10-bit ADC inputs with programmable conversion timing and reference voltage (VAREF) |
| XTAL1 / XTAL2 | Crystal oscillator inputs | Differential crystal connection for main 25 MHz clock generation; supports external clock input via XTAL1 |
| EA / ALE / RD / WR/WRL | External bus control | External memory enable, address latch enable, read strobe, and write strobe for interfacing with external ROM/RAM |
Key Features
| Feature | Design Value |
|---|---|
| SDLM Protocol Engine | Hardware-accelerated SAE J1850 Class 2 framing, CRC generation/checking, and bit-stuffing handling-reducing CPU overhead during diagnostic sessions |
| Peripheral Event Controller (PEC) | 8-channel DMA-like data transfer engine triggered by peripheral events (e.g., ADC completion, timer overflow), enabling zero-CPU-cycle data movement |
| Programmable Interface Routing | Flexible assignment of peripheral functions (CAN, SDLM, SPI, UART) to multiple port pins, allowing PCB layout optimization without hardware redesign |
| Real-Time Clock (RTC) | On-chip RTC with battery-backed operation and alarm interrupt, supporting time-stamped diagnostic logging and wake-up scheduling |
| Power Management Modes | Three low-power states (idle, sleep, power-down) with selective peripheral clock gating and wake-up via interrupt or external pin-extending battery life in always-on modules |
Applications
| Body Control Module (BCM) | Diagnostic Communication Gateway |
|---|---|
Use Scenario: Centralized control of lighting, door locks, window lifts, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: Main controller executing body logic, managing CAN/SDLM diagnostics, and coordinating actuator timing via capture/compare units. Use Value: SDLM interface enables direct connection to factory scan tools; 12-channel ADC monitors switch states and sensor feedback without external signal conditioning. | Use Scenario: Translation between J1850-based legacy ECUs and modern CAN-based diagnostic infrastructure. IC Role / Device Role / Timing Role: Protocol bridge with dual-serial interface (SDLM + UART/CAN), performing message reformatting and timing synchronization. Use Value: Hardware SDLM engine offloads protocol processing from host MCU; external bus interface allows firmware updates via flash memory mapping. |
| Seat Position Memory Controller | Climate Control Actuator Driver |
Use Scenario: Storing and recalling driver seat position settings using non-volatile memory and motor control. IC Role / Device Role / Timing Role: Real-time controller reading potentiometer inputs (ADC), driving H-bridge outputs (GPIO + PWM), and storing profiles via EEPROM interface. Use Value: On-chip RTC timestamps seat adjustments; 16-priority interrupt system ensures immediate response to seat switch inputs. | Use Scenario: Driving stepper motors and relays for air blend doors, fan speed, and compressor clutch in HVAC systems. IC Role / Device Role / Timing Role: Precision timing controller generating variable-frequency PWM (via GPT units) and monitoring thermistor feedback (ADC). Use Value: 7.8 µs ADC conversion enables fast closed-loop temperature regulation; programmable hysteresis on GPIO prevents contact bounce misreads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar vehicle diagnostic interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAB-C161JC-LF | Includes one CAN 2.0B interface in addition to SDLM; same CPU, memory, and package | Supports hybrid diagnostics combining J1850 and CAN protocols in same ECU | Select when dual-bus diagnostics (J1850 + CAN) are required; adds CAN transceiver cost but eliminates external bridge IC |
| SAK-C161JI-32RF | Same SDLM functionality but includes 256 KB on-chip mask ROM; otherwise identical peripheral set and timing | Enables standalone operation without external program memory; suitable for production firmware locking | Select for volume production where ROM-based firmware security and boot speed are critical; requires ROM code verification before ordering |
Compared with SAB-C161JI-LF, the SAB-C161JC-LF adds CAN capability at no package or power cost-ideal for transitional architectures-while the SAK-C161JI-32RF trades external boot flexibility for secure, fast-starting ROM execution, reducing BOM count but increasing NRE.
Availability
SAB-C161JI-LF is available at Aetrix Electronics and suitable for automotive body control modules, diagnostic gateways, seat memory controllers, and climate actuator drivers requiring stable component supply across extended product lifecycles.
Supply support for SAB-C161JI-LF 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and microcontrollers, with global R&D and manufacturing facilities.
The C166 family-including the SAB-C161JI-LF-is designed specifically for automotive and industrial real-time control applications demanding high peripheral integration, deterministic timing, and robust serial diagnostics support.
FAQ
Does SAB-C161JI-LF include on-chip program memory?
No. The SAB-C161JI-LF has no embedded mask ROM or flash memory. It relies on external program memory accessed via its 16 MB external bus interface, with boot code loaded through the on-chip bootstrap loader. This design enables field firmware updates and avoids ROM mask costs during prototyping.
What is the role of the SDLM interface in SAB-C161JI-LF?
Its SDLM (Serial Data Link Module) implements SAE J1850 Class 2 physical and data-link layer functions-including Manchester encoding/decoding, CRC calculation, and message framing-enabling direct connection to OBD-II diagnostic tools without external protocol ICs or software bit-banging overhead.
Can SAB-C161JI-LF operate without an external crystal?
Yes. While optimized for 25 MHz operation with a crystal on XTAL1/XTAL2, it supports direct external clock input on XTAL1 (up to 25 MHz) and includes an internal 32 kHz oscillator for RTC operation-allowing crystal-free designs where timing precision is secondary to cost or board space.
How many general-purpose I/O lines does SAB-C161JI-LF support?
Up to 93 GPIO lines across Ports 0–9, with individual configuration for input threshold (TTL/CMOS), hysteresis, pull-up/down, and alternate peripheral function assignment. Port 3 provides dedicated UART, Port 5 hosts all 16 ADC inputs, and Ports 9.0–9.4 are fixed for SDLM data signaling.
SAB-C161JI-LF CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 128-LQFP
- Series:
- C16xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- C166
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- EBI/EMI, I2C, SLDM, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 93
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SAB-C161JI-LF CA FAQ
1.How can I place an order for SAB-C161JI-LF CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SAB-C161JI-LF CA 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 SAB-C161JI-LF CA reliable?
The price and inventory of SAB-C161JI-LF CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAB-C161JI-LF CA is usually 5 days.
3.What payment methods are accepted for SAB-C161JI-LF CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAB-C161JI-LF CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAB-C161JI-LF CA?
SAB-C161JI-LF CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAB-C161JI-LF CA 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 SAB-C161JI-LF CA?
For technical support, including SAB-C161JI-LF CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAB-C161JI-LF CA requirements.
6.How does Aetrix verify that SAB-C161JI-LF CA is sourced from the original manufacturer or authorized distributors?
All SAB-C161JI-LF CA 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 SAB-C161JI-LF CA meets industry standards.
7.What is the process for return or replacement of SAB-C161JI-LF CA?
All SAB-C161JI-LF CA units undergo pre-shipment inspection (PSI). If there is an issue with SAB-C161JI-LF CA, 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 SAB-C161JI-LF CA part is unused and in its original packaging.
Return procedure for SAB-C161JI-LF CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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