Infineon Technologies C167CRLMHABXQLA1

Overview

C167CRLMHABXQLA1 from Infineon Technologies is a 16-bit single-chip microcontroller with 128 KB on-chip mask ROM, 2 KB XRAM, 2 KB IRAM, and integrated CAN 2.0B interface supporting 15 message objects. It operates at 25 MHz CPU clock (40 ns instruction cycle), features dual CAPCOM units, 10-bit 16-channel ADC (7.8 µs conversion), and PWM generation. Used in industrial motor control systems requiring real-time I/O handling and deterministic communication.

For engineers reviewing the C167CRLMHABXQLA1 datasheet, C167CRLMHABXQLA1 pinout, C167CRLMHABXQLA1 application, or C167CRLMHABXQLA1 equivalent, key selection criteria include CAN 2.0B compliance, 25 MHz timing budget, P-MQFP-144-8 package compatibility, 16-channel analog input capability, and bootstrap loader support for field firmware updates.

Technical Context

The C167CRLMHABXQLA1 implements a 4-stage pipelined 16-bit CPU with register-based architecture, single-cycle context switching, and 16 Mbyte linear address space. Its peripheral set includes two synchronous/asynchronous serial channels, watchdog timer with oscillator watchdog, and programmable external bus controller supporting multiplexed/demultiplexed 8/16-bit data buses.

It integrates a PLL clock generator with selectable multiplication factors (1.5× to 5×), enabling flexible system clock derivation from crystal or external source. The A/D converter supports programmable sample-and-hold timing and automatic channel sequencing, while the CAPCOM units provide precise edge-capture and waveform generation with interrupt-driven PEC transfers.

Key Specifications

Pinout & Package

P-MQFP-144-8 package: 144-pin plastic metric quad flat pack with exposed thermal pad, 20.0 × 20.0 mm body, 0.5 mm lead pitch, and gull-wing leads. Thermal resistance θ_JA = 35 °C/W (JEDEC standard board).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit industrial microcontroller applications.

Compared with SAB-C167CR-16R33M, this part trades clock speed for lower EMI and power consumption; compared with SAK-C167CR-4RM, it provides 4× more ROM for complex motion profiles and dual-protocol stacks, justifying its use in full-CAN industrial nodes.

Availability

C167CRLMHABXQLA1 is available at Aetrix Electronics and suitable for industrial motor drives, building automation controllers, and power supply monitoring units requiring stable component supply and long-term lifecycle assurance.

Supply support for C167CRLMHABXQLA1 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, headquartered in Munich.

This device belongs to the C166/C167 family - designed specifically for deterministic real-time control in harsh industrial environments, emphasizing integrated peripherals, robust I/O, and CAN-native communication.

FAQ

Does C167CRLMHABXQLA1 support in-system programming?

Yes - it contains a factory-programmed bootstrap loader in ROM that enables firmware updates via UART or CAN bus without external programming hardware. The loader supports checksum verification and sector-erase functionality, allowing field upgrades while retaining critical calibration data stored in protected XRAM regions.

What is the maximum external memory address space supported?

The C167CRLMHABXQLA1 supports up to 16 Mbytes of external address space for both code and data, managed through five programmable chip-select signals with independent timing registers. Each chip-select region can be configured for 8-bit or 16-bit data bus width, asynchronous or burst-mode timing, and wait-state insertion.

Is the CAN module compatible with ISO 11898-1 physical layer?

No - the C167CRLMHABXQLA1 implements only the CAN protocol controller (Rev. 2.0B). It requires an external ISO 11898-1-compliant transceiver (e.g., Infineon TLE6250) on CANTX/CANRX pins to achieve physical layer compliance, including differential signaling and bus fault protection.

Can Port 6 pins be used as general-purpose I/O with configurable thresholds?

Yes - Port 6 pins support selectable input thresholds (TTL or CMOS levels) and hysteresis, as documented in Section 2.2 and Section 45 of the datasheet. This feature is enabled per-pin via the PORT6CON register and improves noise immunity when interfacing with legacy 5 V logic or industrial sensors operating at marginal voltage levels.