Infineon Technologies C164CI8EMCBKXUMA1

Overview

C164CI8EMCBKXUMA1 from Infineon Technologies is a 16-bit single-chip microcontroller with 64 KB on-chip OTP memory, integrated CAN 2.0B interface (15 message objects), and 8-channel 10-bit ADC (7.8 µs conversion time). It operates at up to 25 MHz CPU clock (80 ns instruction cycle), features three general-purpose timers, CAPCOM2/CAPCOM6 PWM units, and supports external bus expansion up to 4 MB. Used in industrial motor control systems requiring real-time CAN communication and analog feedback.

For engineers reviewing the C164CI8EMCBKXUMA1 datasheet, C164CI8EMCBKXUMA1 pinout, C164CI8EMCBKXUMA1 application, or C164CI8EMCBKXUMA1 equivalent, key selection criteria include OTP program memory size, full-function CAN 2.0B support, 80-pin MQFP package compatibility, 5 V supply operation, and peripheral event controller (PEC)-driven DMA capability.

Technical Context

The C164CI8EMCBKXUMA1 implements a 4-stage pipelined C166-compatible CPU core with register-based architecture and single-cycle context switching. Its on-chip PLL supports clock multiplication factors of 1.5× to 5× for flexible system timing, and the oscillator watchdog monitors crystal stability independently of the main clock path.

Peripheral integration includes dual serial channels (asynchronous/synchronous/HS-synchronous), a real-time clock, programmable watchdog timer, and power management modes (idle, sleep, power-down). The CAPCOM6 unit provides 3/6 capture/compare channels plus one dedicated compare channel for multi-phase PWM generation in motor drive applications.

Key Specifications

Pinout & Package

80-pin MQFP (Metric Quad Flat Package) with 0.65 mm lead pitch, body size 14 × 20 mm, exposed pad not present. Pinout validated per Infineon Data Sheet V2.0 (2001-05), 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 and SAK-C164CL-8R25M, the C164CI8EMCBKXUMA1 uniquely combines field-programmable OTP, full CAN 2.0B, and complete CAPCOM6 functionality - making it the only choice among these three for development-stage or low-to-mid volume CAN-based motor controllers requiring firmware iteration.

Availability

C164CI8EMCBKXUMA1 is available at Aetrix Electronics and suitable for industrial motor drive, automated test equipment, building automation controller, and power supply monitoring applications requiring stable component supply and long-term manufacturability.

Supply support for C164CI8EMCBKXUMA1 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 manufacturing and R&D centers.

The C166 family - including the C164CI - was engineered for cost-sensitive industrial control applications demanding high peripheral integration, real-time responsiveness, and robustness in electrically noisy environments.

FAQ

Is C164CI8EMCBKXUMA1 pin-compatible with other C164 derivatives?

Yes - all C164CI/SI/CL/SL variants use the identical 80-pin MQFP package and share identical pin functions for core signals (power, reset, clocks, Port 0–5, UART, CAN, ADC inputs). Differences exist only in optional peripheral mappings (e.g., CAPCOM6 pins P8.0–P8.3 are functional only on full-CAN/full-CAPCOM6 parts like this one).

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

The C164CI8EMCBKXUMA1 supports a maximum CPU clock of 25 MHz, yielding an 80 ns instruction cycle time. This is achieved using the on-chip PLL with a 5× multiplication factor from a 5 MHz crystal, or directly from a 25 MHz external clock source applied to XTAL1.

Does this microcontroller require an external CAN transceiver?

Yes - the C164CI8EMCBKXUMA1 contains only the CAN protocol controller (rev. 2.0B), not the physical layer transceiver. An external ISO 11898-compliant transceiver (e.g., Infineon TLE6250 or TI SN65HVD230) must be used to drive the CAN bus lines (CAN_H/CAN_L).

Can the on-chip OTP memory be erased or reprogrammed after initial programming?

No - the OTP (One-Time Programmable) memory in C164CI8EMCBKXUMA1 is permanently programmed during final test; it cannot be erased or rewritten. Programming is performed via Vpp (pin 28) using standard Infineon OTP programming voltages and timing sequences defined in the data sheet.