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Infineon Technologies C161KLMHABXQMA1
- Part No.:
- C161KLMHABXQMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
C161KLMHABXQMA1.pdf
- Description:
- IC MCU 16BIT ROMLESS 80MQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,276
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Product details
Overview
C161KLMHABXQMA1 from Infineon Technologies is a 16-bit single-chip microcontroller in the C166 family, featuring a 4-stage pipeline CPU with 80 ns instruction cycle time at 25 MHz, 1 KB on-chip IRAM, two general-purpose timer units (3 timers total), and dual serial channels (synchronous/asynchronous + high-speed synchronous). It operates from 4.5–5.5 V, supports idle/power-down modes, and targets cost-sensitive industrial control and motor drive applications.
For engineers reviewing the C161KLMHABXQMA1 datasheet, C161KLMHABXQMA1 pinout, C161KLMHABXQMA1 application, or C161KLMHABXQMA1 equivalent, key selection criteria include its 20 MHz max operating frequency (HA design step), 2 chip-select outputs, 4 external interrupt inputs, 63 GPIO lines, and MQFP-80 package compatibility with legacy C161K-LM derivatives.
Technical Context
The C161KLMHABXQMA1 implements a register-based 16-bit CPU with single-cycle context switching support and 16 MByte linear address space. Its peripheral event controller (PEC) enables interrupt-driven, single-cycle data transfers across 8 channels, while the programmable watchdog timer and bidirectional reset architecture enhance system reliability in embedded real-time environments.
Memory mapping includes 1 KB on-chip IRAM, up to 4 MB external address space with configurable bus width (8/16-bit), and multiplexed/demultiplexed external bus options. Clock generation supports prescaler-based internal derivation or direct external clock input, with standard 25-MHz timing granularity of 2 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C166-family 16-bit with 4-stage pipeline, enabling 12.5 MIPS at 25 MHz |
| Max Operating Frequency | 20 MHz (design step HA, per Derivative Synopsis Table 1) |
| Supply Voltage | 4.5–5.5 V - ensures compatibility with standard 5 V industrial logic systems |
| On-Chip RAM | 1 KB IRAM - sufficient for real-time task stacks and small data buffers in motor control firmware |
| External Bus Interface | 2 chip-select signals - supports dual memory or peripheral mapping without external decoding logic |
| Interrupt System | 16-priority-level with 20 sources and 40 ns sample rate - meets hard real-time response in servo loop control |
| I/O Lines | Up to 63 general-purpose I/O - enables direct interface to encoders, PWM drivers, and status LEDs |
Pinout & Package
Package: 80-pin MQFP (0.65 mm pitch), lead-free and RoHS-compliant per Infineon's 2001 manufacturing standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTAL1 / XTAL2 | Crystal oscillator input/output | Supports fundamental-mode quartz crystals up to 25 MHz for precise clock generation |
| P0L.0–P0L.7 / P0H.0–P0H.7 | Lower/upper byte of 16-bit address/data bus (AD0–AD15) | Multiplexed bus pins requiring external latch (ALE-controlled) for demultiplexing in external memory interface |
| EA | External Access enable | Low = fetch code from external memory; high = execute from on-chip ROM (if present) or internal vectors |
| ALE | Address Latch Enable | Strobes lower/upper address byte onto AD0–AD15 during external memory access cycles |
| RSTIN / RSTOUT | Reset input / reset output | Bidirectional reset architecture allows daisy-chaining or synchronized system reset propagation |
| P3.10 / P3.11 | Serial channel 0 TXD0 / RXD0 | Full-duplex UART interface supporting asynchronous communication at configurable baud rates |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle context switching | Enables deterministic RTOS task switching with ≤1 µs latency, critical for multi-loop motor control |
| Peripheral Event Controller (PEC) | 8-channel DMA-like transfer engine offloads CPU during ADC sampling or PWM update sequences |
| Programmable watchdog timer | Configurable timeout period prevents runaway code in unattended industrial equipment |
| Open-drain capability on P2/P3/P6 | Allows wired-OR logic for interrupt aggregation or level-sensitive bus signaling |
| Idle and power-down modes | Reduces active current to <10 mA (idle) or <50 µA (power-down), extending battery life in portable HMI |
Applications
| Industrial Motor Control | Embedded HMI Panel |
|---|---|
Use Scenario: Closed-loop speed/position control of 3-phase BLDC motors using hall sensors and PWM outputs. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, timer-triggered ADC sampling, and PEC-managed PWM update bursts. Use Value: 40 ns interrupt sampling rate ensures sub-microsecond response to overcurrent events, preventing IGBT failure. | Use Scenario: Local operator interface with keypad scan, LCD refresh, and serial telemetry to PLC. IC Role / Device Role / Timing Role: Central controller managing parallel I/O scanning, UART comms, and low-power sleep/wake cycles. Use Value: 63 GPIO lines eliminate external port expanders; power-down mode cuts standby consumption by >99%. |
| Power Supply Monitoring Unit | Legacy Equipment Retrofit Controller |
Use Scenario: Monitoring AC line voltage, temperature, and fan status in telecom rectifier cabinets. IC Role / Device Role / Timing Role: Analog monitoring via on-chip ADC (with external signal conditioning), fault logging to EEPROM, and relay control. Use Value: 20 MHz CPU provides margin for cryptographic checksums on stored logs without compromising real-time polling. | Use Scenario: Replacing obsolete 8051-based controllers in factory automation panels with minimal PCB redesign. IC Role / Device Role / Timing Role: Pin-compatible drop-in replacement leveraging same 80-pin footprint and 5 V supply rail. Use Value: MQFP-80 package and identical EA/ALE/RD/WR timing allow reuse of existing PCB layout and firmware boot loader. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAB-C161K-LM | Same core, 20 MHz, 1 KB IRAM, identical pinout and package | No SAF prefix - mask-ROM version without bootstrap loader; requires external programmer | Select when firmware is fixed and field updates are unnecessary |
| C167CR-LM | Enhanced C166 derivative: 32 KB on-chip flash, 2 KB IRAM, higher 40 MHz clock | Requires PCB redesign due to 100-pin PQFP package and different power sequencing | Select for new designs needing in-field firmware updates and higher processing headroom |
Compared with SAB-C161K-LM, C161KLMHABXQMA1 offers factory-programmed flash and integrated bootloader for simplified firmware deployment; versus C167CR-LM, it trades flash capacity and speed for pin and software compatibility with legacy C161K hardware.
Availability
C161KLMHABXQMA1 is available at Aetrix Electronics and suitable for industrial motor control, embedded HMI panels, and power supply monitoring units requiring stable component supply and long-term lifecycle support.
Supply support for C161KLMHABXQMA1 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 industrial microcontrollers, founded in 1999 as a spin-off from Siemens.
The C166 family-including the C161K-was designed for cost-effective, high-reliability embedded control in motor drives, power conversion, and factory automation systems where deterministic timing and peripheral integration are essential.
FAQ
What is the maximum operating frequency supported by C161KLMHABXQMA1?
The C161KLMHABXQMA1 supports a maximum operating frequency of 20 MHz, as confirmed in Table 1 (Derivative Synopsis) of the V2.0 datasheet. This applies to the HA design step and aligns with its 80 ns instruction cycle time specification under 5 V operation. It is not rated for sustained 25 MHz operation like some C161O variants.
Does C161KLMHABXQMA1 include on-chip flash memory?
No, the C161KLMHABXQMA1 contains 1 KB of on-chip SRAM (IRAM) but no embedded flash or ROM. Firmware must be loaded externally via the bootstrap loader or executed from external memory mapped through its 4 MB address space. Mask-ROM versions (e.g., SAB-C161K-LM) exist but require separate programming.
Is the C161KLMHABXQMA1 pin-compatible with other C161K derivatives?
Yes, C161KLMHABXQMA1 uses the standard 80-pin MQFP package and shares identical pin functions with all C161K-LM variants (e.g., SAF-C161K-LM, SAB-C161K-LM), including matching signal names, electrical characteristics, and timing for EA, ALE, RD, WR/WRL, and P0–P6 ports.
What development tools are supported for C161KLMHABXQMA1?
Infineon officially supports C161KLMHABXQMA1 with the C166 C-Compiler, Macro-Assembler packages, ICE-based emulators (e.g., DAS-500), HLL debuggers, and evaluation boards such as the C161K Evaluation Kit. The on-chip bootstrap loader enables in-system programming via UART without requiring dedicated hardware programmers.
C161KLMHABXQMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 80-QFP
- Series:
- C16xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- C166
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- EBI/EMI, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 63
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- -
- Oscillator Type:
- External
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
C161KLMHABXQMA1 FAQ
1.How can I place an order for C161KLMHABXQMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for C161KLMHABXQMA1 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 C161KLMHABXQMA1 reliable?
The price and inventory of C161KLMHABXQMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for C161KLMHABXQMA1 is usually 5 days.
3.What payment methods are accepted for C161KLMHABXQMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for C161KLMHABXQMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for C161KLMHABXQMA1?
C161KLMHABXQMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your C161KLMHABXQMA1 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 C161KLMHABXQMA1?
For technical support, including C161KLMHABXQMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your C161KLMHABXQMA1 requirements.
6.How does Aetrix verify that C161KLMHABXQMA1 is sourced from the original manufacturer or authorized distributors?
All C161KLMHABXQMA1 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 C161KLMHABXQMA1 meets industry standards.
7.What is the process for return or replacement of C161KLMHABXQMA1?
All C161KLMHABXQMA1 units undergo pre-shipment inspection (PSI). If there is an issue with C161KLMHABXQMA1, 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 C161KLMHABXQMA1 part is unused and in its original packaging.
Return procedure for C161KLMHABXQMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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