My Inquiry
My Account
Infineon Technologies C161OLMHABXQMA1
- Part No.:
- C161OLMHABXQMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
C161OLMHABXQMA1.pdf
- Description:
- IC MCU 16BIT ROMLESS 80MQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
C161OLMHABXQMA1 from Infineon Technologies is a 16-bit single-chip microcontroller in the C166 family, featuring a 4-stage pipeline CPU delivering 12.5 MIPS at 25 MHz, 2 KB on-chip IRAM, dual multi-functional timer units (5 timers), and two serial channels (synchronous/asynchronous + high-speed synchronous). It operates from 4.5–5.5 V, supports up to 4 MB external address space, and targets cost-sensitive industrial control and embedded automation systems.
For engineers reviewing the C161OLMHABXQMA1 datasheet, C161OLMHABXQMA1 pinout, C161OLMHABXQMA1 application, or C161OLMHABXQMA1 equivalent, key selection criteria include its 25 MHz max operating frequency, 80-pin MQFP package with multiplexed AD0–AD15 bus, 16-priority interrupt system with 40 ns sample rate, and support for idle/power-down modes in resource-constrained real-time control designs.
Technical Context
The C161OLMHABXQMA1 implements a register-based 16-bit CPU with single-cycle context switching, enhanced Boolean bit manipulation, and HLL/OS-supporting instructions. Its peripheral event controller (PEC) enables interrupt-driven single-cycle data transfers across 8 channels, decoupling CPU load from I/O timing-critical operations.
It integrates dual general-purpose timer units (5 total timers), two serial interfaces with configurable clocking, programmable watchdog, and four chip-select signals for flexible memory-mapped peripheral interfacing - all coordinated via a unified 16-MByte linear address space shared between code and data.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Architecture | 16-bit C166 core with 4-stage pipeline, enabling 12.5 MIPS at 25 MHz |
| Max Operating Frequency | 25 MHz - defines real-time instruction throughput and timer resolution granularity of 2 ns |
| On-Chip RAM | 2 KB IRAM - sufficient for stack, variables, and small real-time task buffers without external SRAM |
| External Address Space | Up to 4 MB - supports memory-mapped peripherals, flash, and SRAM in industrial control BOMs |
| Interrupt System | 16-priority-level with 20 sources and 40 ns sampling - enables deterministic response to fast edge-triggered events |
| Package | 80-pin MQFP, 0.65 mm pitch - surface-mount compatible with standard reflow profiles and PCB routing density |
| Supply Voltage | 4.5–5.5 V - matches legacy 5 V logic families and simplifies power rail design in industrial modules |
Pinout & Package
Package: 80-pin MQFP (0.65 mm pitch), thermally optimized for industrial ambient temperatures up to +85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0L.0–P0L.7 / AD0–AD7 | Lower byte address/data multiplex | Shared bus lines for compact 8-bit external memory or peripheral interface with ALE strobe |
| P0H.0–P0H.7 / AD8–AD15 | Upper byte address/data multiplex | Enables full 16-bit data bus operation when demultiplexed with external latch control |
| P1L.0–P1L.7 / A0–A7 | Lower address bus | Dedicated non-multiplexed address lines for simplified glueless connection to 8-bit peripherals |
| P2.9–P2.15 / EX1IN–EX7IN | External interrupt inputs | Seven independent edge-triggered interrupt sources for sensor/event monitoring without polling |
| P3.10/RxD0 & P3.11/TxD0 | UART channel 0 I/O | Full-duplex asynchronous serial interface supporting RS-232/RS-485 level-shifter integration |
| XTAL1 / XTAL2 | Crystal oscillator inputs | Supports 1–25 MHz crystal or external clock drive for precise timing in motor control loops |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle context switching | Enables deterministic RTOS task scheduling with sub-100 ns latency between interrupt and handler execution |
| Peripheral Event Controller (PEC) | Offloads 8-channel DMA-like transfers from CPU, preserving bandwidth for control algorithms |
| Programmable watchdog timer | Configurable timeout period prevents firmware lockup in unattended industrial equipment |
| Four chip-select outputs (CS0–CS3) | Direct memory-mapped peripheral addressing without external decode logic, reducing BOM count |
| Bidirectional reset (RSTIN/RSTOUT) | Allows synchronized reset propagation across multi-chip subsystems in modular PLC designs |
Applications
| Industrial Motor Control | Programmable Logic Controller (PLC) I/O Module |
|---|---|
Use Scenario: Closed-loop speed regulation of 3-phase AC induction motors using PWM output and encoder feedback. IC Role / Device Role / Timing Role: Real-time execution of PID loop (≤100 µs cycle), timer capture of quadrature encoder edges, and UART-based HMI communication. Use Value: 25 MHz CPU clock and 40 ns interrupt sampling ensure jitter-free capture of 100 kHz encoder pulses while maintaining 10 kHz PWM update rate. | Use Scenario: Modular digital input/output expansion unit with isolated 24 V DC sensing and relay driving. IC Role / Device Role / Timing Role: GPIO management of 32-channel opto-isolated inputs and 16-channel transistor outputs, with watchdog supervision and CAN/UART gateway functions. Use Value: Four CS lines enable direct mapping of isolated input latches and output drivers into separate memory regions, eliminating address decoding logic. |
| Automated Test Equipment (ATE) Fixture Controller | Legacy Industrial Communication Gateway |
Use Scenario: Self-contained test sequencer coordinating relay matrix, DMM trigger, and pass/fail LED indicators in benchtop ATE. IC Role / Device Role / Timing Role: Deterministic I/O state changes synchronized to external trigger, with PEC-managed data capture from analog front-end ADCs. Use Value: Single-cycle PEC transfers move ADC results directly to RAM without CPU intervention, freeing cycles for pattern generation logic. | Use Scenario: Protocol translator bridging Modbus RTU over RS-485 to proprietary fieldbus in brownfield factory networks. IC Role / Device Role / Timing Role: Dual serial channel operation: one for Modbus master/slave, second for proprietary command framing and CRC validation. Use Value: Independent baud rate generators per channel allow simultaneous 9600 bps Modbus and 115.2 kbps custom protocol without clock conflict. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| C167CR-LM | Higher 50 MHz CPU clock, 8 KB IRAM, enhanced peripheral set including CAPCOM unit | Required for servo control with position capture and PWM dead-time insertion | Select when >20 MIPS or advanced motor control peripherals are needed; not drop-in compatible due to pinout and memory map differences |
| SAB-C161K-L25M | Same CPU core and instruction set but only 1 KB IRAM and 2 chip-selects | Suitable for simpler I/O concentrators without external memory expansion | Choose for cost-optimized designs where external memory footprint and peripheral count are reduced |
Compared with C161OLMHABXQMA1, the C167CR-LM delivers higher compute throughput and richer peripherals at increased BOM cost and layout complexity, while the SAB-C161K-L25M reduces memory and addressing capability to meet tighter cost targets - both require board-level redesign.
Availability
C161OLMHABXQMA1 is available at Aetrix Electronics and suitable for industrial motor control, PLC I/O modules, automated test equipment fixtures, and legacy industrial communication gateways requiring stable component supply and long-term lifecycle support.
Supply support for C161OLMHABXQMA1 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, with global R&D and manufacturing infrastructure.
The C166 family - including the C161O derivative - was engineered for deterministic real-time control in cost-sensitive industrial automation, emphasizing interrupt latency, peripheral integration, and 5 V robustness.
FAQ
What is the maximum operating temperature range for C161OLMHABXQMA1?
The C161OLMHABXQMA1 is rated for industrial temperature operation from –40°C to +85°C. This range is validated per Infineon's qualification standards and applies to the 80-pin MQFP package under continuous operation with specified supply voltage (4.5–5.5 V) and derated power dissipation. Thermal performance remains stable within this range without external cooling.
Does C161OLMHABXQMA1 support external memory expansion with wait-state control?
Yes, it supports programmable wait-state insertion per external address range via the BUSCON register. Up to 15 wait states can be configured for each of four chip-select regions, enabling reliable interfacing with slow EPROM, SRAM, or peripheral ASICs without external glue logic or clock stretching.
Can the C161OLMHABXQMA1 operate from a 3.3 V supply?
No - the C161OLMHABXQMA1 variant is specified only for 4.5–5.5 V operation. While some C161O derivatives (e.g., SAF-C161O-LM3V) support 3.0–3.6 V, this specific ordering code denotes the 5 V version; attempting 3.3 V operation risks functional failure or undefined behavior per the datasheet absolute maximum ratings.
Is there hardware support for CAN bus communication on C161OLMHABXQMA1?
No - the C161OLMHABXQMA1 does not integrate a CAN controller or transceiver. Its two serial channels support UART, SPI, and synchronous protocols only. CAN functionality requires external CAN controller ICs (e.g., MCP2515) interfaced via its parallel bus or serial port with software protocol stack implementation.
C161OLMHABXQMA1 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:
- 2K 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:
C161OLMHABXQMA1 FAQ
1.How can I place an order for C161OLMHABXQMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for C161OLMHABXQMA1 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 C161OLMHABXQMA1 reliable?
The price and inventory of C161OLMHABXQMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for C161OLMHABXQMA1 is usually 5 days.
3.What payment methods are accepted for C161OLMHABXQMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for C161OLMHABXQMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for C161OLMHABXQMA1?
C161OLMHABXQMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your C161OLMHABXQMA1 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 C161OLMHABXQMA1?
For technical support, including C161OLMHABXQMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your C161OLMHABXQMA1 requirements.
6.How does Aetrix verify that C161OLMHABXQMA1 is sourced from the original manufacturer or authorized distributors?
All C161OLMHABXQMA1 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 C161OLMHABXQMA1 meets industry standards.
7.What is the process for return or replacement of C161OLMHABXQMA1?
All C161OLMHABXQMA1 units undergo pre-shipment inspection (PSI). If there is an issue with C161OLMHABXQMA1, 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 C161OLMHABXQMA1 part is unused and in its original packaging.
Return procedure for C161OLMHABXQMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
C161OLMHABXQMA1 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
