Infineon Technologies C164CI8EMDBKXQMA1

Overview

C164CI8EMDBKXQMA1 from Infineon Technologies is a 16-bit single-chip microcontroller in the C166 family, featuring an on-chip 64 KB OTP program memory, full-function CAN 2.0B interface with 15 message objects, and a PLL-based clock generator supporting up to 25 MHz operation. It integrates 4 KB on-chip RAM (2 KB IRAM + 2 KB XRAM), an 8-channel 10-bit ADC (7.8 µs min conversion time), CAPCOM2/CAPCOM6 PWM units, three general-purpose timers, two serial channels, and a real-time clock. It targets industrial motor control systems requiring deterministic timing and embedded CAN communication.

For engineers reviewing the C164CI8EMDBKXQMA1 datasheet, C164CI8EMDBKXQMA1 pinout, C164CI8EMDBKXQMA1 application, or C164CI8EMDBKXQMA1 equivalent, key selection criteria include OTP programmability, full CAN 2.0B support, 80-pin MQFP package compatibility, 25 MHz max CPU clock, and integrated PEC-driven DMA for real-time sensor data acquisition in resource-constrained embedded designs.

Technical Context

The C164CI8EMDBKXQMA1 implements a 4-stage pipelined 16-bit CPU delivering 12.5 MIPS at 25 MHz, with single-cycle context switching and register bank support for RTOS environments. Its peripheral set includes a dedicated Peripheral Event Controller (PEC) enabling interrupt-free, single-cycle data transfers across eight channels - critical for time-sensitive ADC sampling and PWM synchronization.

It features a fully integrated CAN 2.0B controller with hardware message filtering, 15 configurable message objects, and automatic retransmission logic, operating independently of the CPU core. The on-chip PLL supports multiplication factors of 1.5× to 5×, allowing flexible clock tree design from external crystal (e.g., 5–10 MHz) to internal 25 MHz system clock.

Key Specifications

Pinout & Package

80-pin MQFP (Metric Quad Flat Package), 0.65 mm lead pitch, body size 14 × 20 mm, exposed pad not specified. Pin functions validated per Infineon DS V2.0 (2001), Figure 2 and Table 2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAK-C164CI-8R25M, C164CI8EMDBKXQMA1 trades ROM cost for field-programmability; compared with SAK-C164CL-8R25M, it retains full CAPCOM6 functionality essential for motor control, making it the only variant supporting hardware-complementary PWM generation.

Availability

C164CI8EMDBKXQMA1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body controllers, energy metering gateways, and factory automation I/O modules requiring stable component supply across extended product lifecycles.

Supply support for C164CI8EMDBKXQMA1 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 C164CI - was designed for cost-sensitive, high-reliability embedded control applications demanding real-time performance, integrated peripherals, and CAN connectivity in industrial and automotive domains.

FAQ

What is the maximum operating frequency and corresponding instruction cycle time?

The C164CI8EMDBKXQMA1 operates at up to 25 MHz CPU clock, achieving an 80 ns instruction cycle time. This is enabled by its 4-stage pipeline architecture and on-chip PLL, which accepts external crystal inputs (e.g., 5–10 MHz) and multiplies them to generate the internal system clock. The 25 MHz rating is validated across the industrial temperature range (–40°C to +85°C) per datasheet Section 1.1.

Does this microcontroller support in-system programming via its bootstrap loader?

Yes. The C164CI8EMDBKXQMA1 includes an on-chip bootstrap loader stored in ROM that enables in-system programming via UART (P3.10/P3.11). It supports serial download of HEX files using standard protocols defined in Infineon Application Note AP1013, requiring only a 3.3 V or 5 V level-shifter for connection to PC COM ports or USB-UART adapters.

How many CAN message objects are implemented, and what CAN protocol version is supported?

The device implements 15 fully configurable message objects and is compliant with CAN specification Version 2.0B, supporting both standard (11-bit) and extended (29-bit) identifier frames. Hardware message filtering, automatic retransmission, and error confinement are handled entirely in silicon - no CPU intervention is required for basic CAN frame transmission or reception.

Is external memory expansion supported, and what bus configurations are available?

Yes. The C164CI8EMDBKXQMA1 supports up to 4 MB of external code/data memory via a programmable external bus interface. It offers both multiplexed (address/data shared on P0) and demultiplexed (separate P0 and P1 buses) modes, with configurable 8-bit or 16-bit data bus width and four independent chip-select signals (CS0–CS3) for memory-mapped peripheral interfacing.