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Infineon Technologies SAF-XC161CS-32F20F BB-A
- Part No.:
- SAF-XC161CS-32F20F BB-A
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SAF-XC161CS-32F20F BB-A.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 144TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,434
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Product details
Overview
SAF-XC161CS-32F20F BB-A from Infineon Technologies is a 16-bit single-chip microcontroller based on the C166SV2 core, featuring 256 KB on-chip Flash, 12 Kbytes total SRAM (2 KB DPRAM + 4 KB DSRAM + 6 KB PSRAM), and integrated TwinCAN 2.0B interface with 32 message objects across two CAN nodes. It operates from -40 °C to +85 °C, supports 40 MHz CPU clock (25 ns instruction cycle), and targets automotive body control modules requiring real-time I/O, CAN gatewaying, and deterministic interrupt response down to 50 ns.
For engineers reviewing the SAF-XC161CS-32F20F datasheet, SAF-XC161CS-32F20F pinout, SAF-XC161CS-32F20F application, or SAF-XC161CS-32F20F equivalent, key selection criteria include its 144-pin TQFP package, dual 16-channel CAPCOM units, 12-channel 10-bit ADC (2.55 µs conversion), JTAG-based OCDS debug support, and programmable PLL with 1:0.15–1:10 multiplication factors.
Technical Context
The XC161CS-32F20F implements the C166SV2 16-bit RISC-like CPU with five-stage pipeline, zero-cycle jumps, and single-cycle 16×16 multiply with MAC support. Its memory subsystem includes separate 2 KB dual-port RAM for concurrent CPU/peripheral access and 6 KB program/data SRAM mapped into linear 16-Mbyte address space.
Peripheral integration centers on real-time control: twin 16-channel capture/compare units (CAPCOM1/2), GPT12E timer with five sub-timers, ASC0/ASC1 USARTs, SSC0/SSC1 synchronous serial channels, and TwinCAN supporting full CAN and basic CAN modes plus inter-node gateway functionality - all synchronized via a common peripheral event controller (PEC) enabling single-cycle data transfers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C166SV2 16-bit with 5-stage pipeline; enables 40 MHz operation at 25 ns instruction cycle time |
| Flash Memory | 256 KB on-chip Flash; supports in-system programming and configurable wait states via IMBCTRL register |
| SRAM Total | 12 KB distributed: 2 KB DPRAM (dual-port for CPU/peripheral concurrency), 4 KB DSRAM, 6 KB PSRAM |
| ADC | 12-channel 10-bit or 8-bit A/D converter; programmable resolution and conversion time as low as 2.55 µs |
| CAN Interface | TwinCAN Rev. 2.0B with 32 message objects across two independent CAN nodes; supports gateway routing between CAN0/CAN1 |
| Timer System | GPT12E unit with five timers + two 16-channel CAPCOM units; provides PWM generation, input capture, and time-stamped event handling |
| Debug Interface | JTAG-based On-Chip Debug Support (OCDS); enables non-intrusive breakpointing, trace, and real-time register/memory inspection |
Pinout & Package
SAF-XC161CS-32F20F BB-A is housed in a 144-pin Green TQFP package (RoHS compliant) with 0.5 mm pitch. The package supports thermal dissipation via ΘJC = 12.5 K/W and ΘJL = 22.0 K/W per datasheet revision V1.2 (2006-08).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDI / VSS | Internal power supply / ground | Separate analog/digital domain supply pins; XTAL1/XTAL3 belong to VDDI domain per datasheet footnote p.17 |
| XTAL1 / XTAL2 / XTAL3 | Crystal oscillator inputs/outputs | Supports external crystal or ceramic resonator; XTAL1 amplitude specified per footnote p.57 |
| TRST | JTAG test reset | Asynchronous active-low reset for OCDS; pin function modified in V1.2 (p.12) |
| P0.0–P0.15 | Port 0 general-purpose I/O | 16-bit bidirectional port with selectable input thresholds and hysteresis; multiplexed with address/data bus in external memory mode |
| CAN0_TX / CAN0_RX | CAN node 0 transceiver interface | Dedicated differential signal pair for CAN0; electrically isolated from CAN1 signals |
| ASC0_TxD / ASC0_RxD | Asynchronous serial channel 0 | Full-duplex UART interface supporting baud rates up to 1 Mbit/s; supports LIN physical layer via software configuration |
Key Features
| Feature | Design Value |
|---|---|
| Interrupt latency | 50 ns minimum sample rate with 16 priority levels and 73 sources - enables hard real-time response in motor control loops |
| Peripheral Event Controller (PEC) | 8-channel DMA-like engine with 24-bit addressing - performs single-cycle data transfers across full 16-Mbyte address space without CPU intervention |
| Power management modes | Idle, Sleep, and Power Down modes with selective peripheral clock gating - reduces current draw to <10 µA in Power Down with RTC active |
| Real Time Clock (RTC) | Dedicated oscillator-driven RTC with calendar functions - operates independently of main CPU clock and remains functional in Sleep mode |
| Watchdog system | Programmable watchdog timer + oscillator watchdog - detects both software hang and crystal failure for fail-safe system recovery |
Applications
| Automotive Body Control Unit | Industrial CAN Gateway |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, lighting, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing real-time task scheduler, managing 12-channel ADC inputs from sensors, and driving PWM outputs to motor drivers. Use Value: TwinCAN interface routes messages between chassis (CAN0) and infotainment (CAN1) networks while maintaining deterministic 50 ns interrupt response for safety-critical lock actuation. |
Use Scenario: Protocol translation and message filtering between two physically isolated CAN networks in factory automation. IC Role / Device Role / Timing Role: Dual-CAN node controller performing store-and-forward gateway operations with 32 configurable message objects and hardware timestamping. Use Value: Hardware-accelerated message object arbitration and automatic ID masking eliminate CPU overhead, enabling >95% bus utilization at 500 kbit/s. |
| Motor Drive Control Module | Smart Sensor Node with CAN Interface |
|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers or power steering assist systems. IC Role / Device Role / Timing Role: Real-time executor of FOC algorithms using CAPCOM units for precise PWM edge placement and GPT12E for rotor position timing. Use Value: Single-cycle MAC instructions accelerate vector math; 2.55 µs ADC conversion synchronizes sampling with PWM switching for minimal current ripple. |
Use Scenario: Distributed temperature/pressure monitoring node in commercial building management systems. IC Role / Device Role / Timing Role: Low-power sensor aggregator with RTC-triggered wake-up, 10-bit ADC reading multiple analog sensors, and CAN transmission every 5 seconds. Use Value: Power Down mode draws <10 µA while retaining RTC and wakeup capability - extends battery life beyond 5 years on coin-cell supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAF-XC164CS-32F40F | Higher-grade Flash speed (40 MHz max vs. 20 MHz), extended temp range (-40 °C to 125 °C), same pinout and peripheral set | Required for under-hood applications exceeding 85 °C ambient; identical firmware compatibility | Select when operating temperature exceeds 85 °C or higher Flash access performance is needed without code changes |
| SAK-XC2267-56F80L | 32-bit TriCore™ core, 80 MHz, 512 KB Flash, enhanced CAN FD support, different package (144-pin LQFP) | Enables CAN FD upgrade path and complex control algorithms; not pin-compatible; requires toolchain migration | Choose for next-generation designs needing CAN FD, higher compute throughput, or future-proofing beyond 16-bit limitations |
Compared with SAF-XC161CS-32F20F, the XC164CS-32F40F offers identical architecture with higher thermal and timing margins, while the XC2267-56F80L delivers architectural evolution to 32-bit TriCore with CAN FD but requires PCB and software redesign.
Availability
SAF-XC161CS-32F20F BB-A is available at Aetrix Electronics and suitable for automotive body control units, industrial CAN gateways, motor drive control modules, and smart sensor nodes requiring stable component supply and long-term lifecycle support.
Supply support for SAF-XC161CS-32F20F BB-A 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 electronics, and security solutions, with global R&D and manufacturing infrastructure.
The XC161 family was designed specifically for cost-sensitive, high-reliability automotive body electronics and industrial real-time control applications demanding deterministic interrupt response, multi-CAN connectivity, and robust on-chip memory architecture.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for SAF-XC161CS-32F20F?
The SAF-XC161CS-32F20F supports a maximum CPU clock frequency of 40 MHz, delivering a 25 ns instruction cycle time for single-cycle execution of most instructions. This timing assumes proper Flash wait state configuration via the IMBCTRL register's WSFLASH field, as detailed in Section 4.4.2 of the V1.2 datasheet.
Does SAF-XC161CS-32F20F support CAN FD or only classical CAN?
The SAF-XC161CS-32F20F implements the TwinCAN module compliant with ISO 11898-1:2003 (CAN 2.0B), supporting both Full CAN and Basic CAN modes with 32 message objects. It does not support CAN FD features such as flexible data-rate or extended payload; CAN FD capability begins with later Infineon families like XC2200 or Aurix.
How is debug functionality implemented, and what tools are required?
Debug is implemented via JTAG-based On-Chip Debug Support (OCDS), supporting non-intrusive breakpoints, real-time register/memory access, and trace capabilities. Required tools include Infineon's DAS-161 or third-party JTAG emulators compatible with the C166SV2 core, along with DAvE™ configuration software and C166 toolchains (e.g., Keil µVision).
What are the key differences between SAF-XC161CS-32F20F and SAF-XC161CS-32F40F?
The SAF-XC161CS-32F40F is a Grade A variant with extended temperature range (-40 °C to 125 °C), higher Flash speed grading (40 MHz vs. 20 MHz), and identical pinout, peripherals, and memory map. Both share the same BB-A design step and firmware compatibility, differing only in thermal specification and Flash access timing parameters.
SAF-XC161CS-32F20F BB-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 144-LQFP
- Series:
- XC16x
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C166SV2
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, SPI, UART/USART
- Peripherals:
- PWM, WDT
- Number of I/O:
- 99
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 2.7V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SAF-XC161CS-32F20F BB-A FAQ
1.How can I place an order for SAF-XC161CS-32F20F BB-A through Aetrix?
Please submit a Request for Quotation (RFQ) for SAF-XC161CS-32F20F BB-A 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 SAF-XC161CS-32F20F BB-A reliable?
The price and inventory of SAF-XC161CS-32F20F BB-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAF-XC161CS-32F20F BB-A is usually 5 days.
3.What payment methods are accepted for SAF-XC161CS-32F20F BB-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAF-XC161CS-32F20F BB-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAF-XC161CS-32F20F BB-A?
SAF-XC161CS-32F20F BB-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAF-XC161CS-32F20F BB-A 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 SAF-XC161CS-32F20F BB-A?
For technical support, including SAF-XC161CS-32F20F BB-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAF-XC161CS-32F20F BB-A requirements.
6.How does Aetrix verify that SAF-XC161CS-32F20F BB-A is sourced from the original manufacturer or authorized distributors?
All SAF-XC161CS-32F20F BB-A 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 SAF-XC161CS-32F20F BB-A meets industry standards.
7.What is the process for return or replacement of SAF-XC161CS-32F20F BB-A?
All SAF-XC161CS-32F20F BB-A units undergo pre-shipment inspection (PSI). If there is an issue with SAF-XC161CS-32F20F BB-A, 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 SAF-XC161CS-32F20F BB-A part is unused and in its original packaging.
Return procedure for SAF-XC161CS-32F20F BB-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SAF-XC161CS-32F20F BB-A Tags
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ATTINY4-TSHR
Microchip Technology
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ATTINY10-TSHR
Microchip Technology
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ATTINY10-TS8R
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ATTINY202-SSNR
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ATTINY402-SSNR
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PIC16F15213T-I/MF
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PIC16F15213-E/MF
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PIC10F200T-I/OT
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ATTINY412-SSNR
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PIC10F202T-I/OT
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ATTINY404-SSNR
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