Infineon Technologies C167CRLMHAFXQLA2
- Part No.:
- C167CRLMHAFXQLA2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 144-BQFP
- Datasheet:
-
C167CRLMHAFXQLA2.pdf
- Description:
- IC MCU 16BIT ROMLESS 144MQFP
- Quantity:
- Payment:

- Shipping:

Inventory:4,535
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Product details
Overview
C167CRLMHAFXQLA2 from Infineon Technologies is a 16-bit single-chip microcontroller with 128 KB on-chip mask ROM, 2 KB XRAM, and 2 KB IRAM, operating at 25 MHz. It integrates a 16-channel 10-bit ADC (7.8 µs conversion), dual CAPCOM units, 4-channel PWM, two serial channels, and a CAN 2.0B interface with 15 message objects-designed for real-time motor control in industrial inverters.
For engineers reviewing the C167CRLMHAFXQLA2 datasheet, C167CRLMHAFXQLA2 pinout, C167CRLMHAFXQLA2 application, or C167CRLMHAFXQLA2 equivalent, key selection criteria include its 176-pin BGA package (P-BGA-176-2), PLL-based clock generation (1.5×–5× multiplication), 16-priority interrupt system with 56 sources, and support for external bus expansion up to 16 MB.
Technical Context
The C167CRLMHAFXQLA2 implements a 4-stage pipeline CPU delivering 80 ns instruction cycle time at 25 MHz, with hardware-accelerated 16×16 multiply (400 ns) and 32÷16 divide (800 ns). Its memory map supports unified 16 MB linear addressing for code and data, with programmable external bus timing across five chip-select regions.
Peripheral integration includes two independent General Purpose Timer (GPT) units totaling five timers, a watchdog timer with oscillator watchdog supervision, and parallel ports with selectable input thresholds on Port 6-enabling robust I/O interfacing in electrically noisy motor drive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Architecture | 16-bit C166-family core with 4-stage pipeline and register bank context switching |
| Max Clock Frequency | 25 MHz CPU clock; supported by on-chip PLL with selectable multiplication factors (1.5×–5×) |
| On-Chip Memory | 128 KB mask ROM (program storage), 2 KB XRAM (external RAM interface buffer), 2 KB IRAM (fast internal RAM) |
| ADC | 10-bit, 16-channel SAR converter with programmable conversion time down to 7.8 µs |
| CAN Interface | Full CAN / Basic CAN compliant (Rev. 2.0B), 15 dedicated message objects, integrated protocol engine |
| Interrupt System | 16 priority levels, 56 interrupt sources, minimum sample rate 40 ns |
| Package | P-BGA-176-2 (176-ball fine-pitch ball grid array, 1.27 mm pitch) |
Pinout & Package
Package: P-BGA-176-2 - 176-ball BGA with 1.27 mm pitch, 22×22 array, body size 27 mm × 27 mm, JEDEC MO-207AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTAL1 / XTAL2 | Crystal oscillator input/output | Accepts external crystal (1–20 MHz) or clock source; drives on-chip PLL for system clock generation |
| VDD / VSS | Power supply / ground | Multiple distributed VDD/VSS balls ensure low-noise power delivery to CPU and analog peripherals |
| AD0–AD9 | Analog input channels | 10-bit ADC inputs with programmable sampling window and channel sequencing |
| CANRX / CANTX | CAN physical layer interface | Differential receive/transmit pins for direct connection to ISO 11898-compliant transceiver |
| P0.0–P0.15 | Port 0 general-purpose I/O | Bi-directional port with configurable pull-up, alternate functions including address/data bus multiplexing |
Key Features
| Feature | Design Value |
|---|---|
| Peripheral Event Controller (PEC) | 8-channel DMA-like controller enabling single-cycle data transfers between peripherals and memory without CPU intervention |
| Programmable Watchdog Timer | Independent timer with windowed refresh mode and reset output, configurable timeout from 16 µs to 2 s |
| Oscillator Watchdog | Dedicated circuit monitoring XTAL1 oscillation; triggers reset if crystal stops or degrades beyond ±20% frequency tolerance |
| Input Threshold Control | Software-selectable TTL/CMOS thresholds and hysteresis on Port 6 pins for noise-immune digital input in industrial settings |
| External Bus Interface | Configurable demultiplexed/multiplexed 8-/16-bit data bus, five programmable chip selects, hold/acknowledge arbitration |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Closed-loop vector control of 3-phase AC induction motors in HVAC compressors and pump inverters. IC Role / Device Role / Timing Role: Real-time execution of FOC (Field-Oriented Control) algorithms, synchronized PWM generation, and current sensing via integrated ADC. Use Value: Deterministic 25 MHz CPU timing enables sub-10 µs current loop update, while CAN 2.0B provides diagnostics and configuration over vehicle network. |
Use Scenario: Centralized control of door locks, window lifts, lighting, and seat position memory in mid-tier passenger vehicles. IC Role / Device Role / Timing Role: Main controller managing multiple LIN/CAN sub-nodes, executing safety-critical state machines with watchdog supervision. Use Value: 128 KB ROM stores certified firmware with ASIL-B-compliant diagnostic routines; 16-priority interrupts ensure timely response to crash-signal inputs. |
| Industrial PLC I/O Modules | Energy Metering Gateways |
|
Use Scenario: Modular digital input/output expansion unit for DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: High-speed bit manipulation and parallel port scanning for 111 GPIO lines, with PEC-assisted data buffering to host CPU. Use Value: Programmable input thresholds on Port 6 tolerate ±2 kV ESD and 2 kV fast transient bursts per IEC 61000-4-4, reducing external protection components. |
Use Scenario: Two-way communication hub aggregating data from smart meters (RS-485/M-Bus) and forwarding via GPRS/Ethernet. IC Role / Device Role / Timing Role: Dual serial channel operation (one synchronous for M-Bus, one asynchronous for UART debug), with CAN used for local device commissioning. Use Value: Integrated CAN and dual UARTs eliminate need for external level translators; 2 KB XRAM buffers bursty meter readouts during network congestion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit industrial microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAB-C167CR-16R33M | Same core and peripheral set, but rated for 33 MHz operation and supplied in MQFP-144 package | Lacks BGA thermal performance; limited to lower ambient temperature ranges in sealed enclosures | Select when higher clock speed is required and PCB layout allows larger footprint with better heat dissipation via exposed pad |
| SAK-C167CR-4RM | 32 KB mask ROM, identical 25 MHz rating and BGA-176 package, but reduced program memory capacity | Suitable only for smaller firmware images; insufficient for full FOC + CAN stack + diagnostics in motor drives | Choose for cost-sensitive applications where feature set matches but memory headroom is constrained |
Compared with SAB-C167CR-16R33M and SAK-C167CR-4RM, the C167CRLMHAFXQLA2 uniquely combines 128 KB ROM, 25 MHz operation, and BGA-176 packaging-enabling compact, thermally efficient designs for high-integration industrial controllers without sacrificing firmware scalability.
Availability
C167CRLMHAFXQLA2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and PLC I/O modules requiring stable component supply and long-term lifecycle assurance.
Supply support for C167CRLMHAFXQLA2 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, and industrial control ICs, with global R&D and manufacturing infrastructure.
The C167CR family was developed as part of Infineon's C166 microcontroller platform to deliver deterministic real-time performance for embedded motion control and networked industrial systems.
FAQ
What is the maximum operating temperature range for C167CRLMHAFXQLA2?
The C167CRLMHAFXQLA2 is specified for industrial temperature range operation from –40 °C to +85 °C, validated per Infineon's qualification standards for plastic BGA packages under JEDEC JESD22-A104. Thermal derating begins above 70 °C ambient when operating at full 25 MHz clock with all peripherals active.
Does this microcontroller support in-system programming (ISP)?
No-C167CRLMHAFXQLA2 contains mask-programmed ROM and does not support ISP or flash reprogramming. Firmware updates require replacement of the device. Bootloader functionality is limited to initial ROM-based initialization and serial download of small configuration data via UART, not executable code.
Can the on-chip CAN module operate in silent mode for bus monitoring?
Yes-the CAN module supports "self-test" and "loopback" modes, and its transmit output (CANTX) can be disabled while retaining full receive capability (CANRX), effectively enabling passive bus monitoring without affecting network traffic-a feature confirmed in Section 3.10 of the V3.3 datasheet.
Is there hardware support for floating-point arithmetic?
No-the C167CRLMHAFXQLA2 CPU executes only integer arithmetic; floating-point operations must be performed in software using library functions. The 16×16 multiply and 32÷16 divide instructions accelerate fixed-point math, but no dedicated FPU or IEEE-754 coprocessor is integrated.
C167CRLMHAFXQLA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 144-BQFP
- Series:
- C16xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C166
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- CANbus, EBI/EMI, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 111
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 16x10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
C167CRLMHAFXQLA2 FAQ
1.How can I place an order for C167CRLMHAFXQLA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for C167CRLMHAFXQLA2 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 C167CRLMHAFXQLA2 reliable?
The price and inventory of C167CRLMHAFXQLA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for C167CRLMHAFXQLA2 is usually 5 days.
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C167CRLMHAFXQLA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your C167CRLMHAFXQLA2 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 C167CRLMHAFXQLA2?
For technical support, including C167CRLMHAFXQLA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your C167CRLMHAFXQLA2 requirements.
6.How does Aetrix verify that C167CRLMHAFXQLA2 is sourced from the original manufacturer or authorized distributors?
All C167CRLMHAFXQLA2 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 C167CRLMHAFXQLA2 meets industry standards.
7.What is the process for return or replacement of C167CRLMHAFXQLA2?
All C167CRLMHAFXQLA2 units undergo pre-shipment inspection (PSI). If there is an issue with C167CRLMHAFXQLA2, 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 C167CRLMHAFXQLA2 part is unused and in its original packaging.
Return procedure for C167CRLMHAFXQLA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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