Infineon Technologies XC822MT1FRIAAFXUMA1

Overview

XC822MT1FRIAAFXUMA1 from Infineon Technologies is an 8-bit single-chip microcontroller based on the XC800 core, compatible with the standard 8051 instruction set and executing instructions at two clocks per machine cycle. It integrates 2 KB Flash memory, 256 bytes RAM, a 10-bit 4-channel ADC with differential input support, three 16-bit timers, and UART/SSC/I²C serial interfaces. It operates across -40 °C to 125 °C (SAK grade) and targets automotive body electronics and industrial control modules requiring robust embedded timing and analog sensing.

For engineers reviewing the XC822MT1FRIAAFXUMA1 datasheet, XC822MT1FRIAAFXUMA1 pinout, XC822MT1FRIAAFXUMA1 application, or XC822MT1FRIAAFXUMA1 equivalent, this page delivers verified technical context, validated pin functions, real-world use cases in automotive and industrial systems, and confirmed alternative parts with documented functional differences.

Technical Context

The XC822MT1FRIAAFXUMA1 implements the XC800 core with dual data pointers and executes 8051-compatible instructions at up to 24 MHz system clock (48 MHz internal oscillator). Its memory subsystem includes 2 KB on-chip Flash with protection, 256 B RAM, and 256 B XRAM - all accessible without wait states due to the two-clock-per-cycle architecture.

Peripherals include a 10-bit ADC with configurable digital filtering yielding up to 13-bit effective resolution, four independent out-of-range comparators, CCU6 for PWM generation, LED/TSC controller, and SPD single-pin debug interface. Power management supports idle and power-down modes with RTC wake-up and brownout detection on both I/O and core supplies.

Key Specifications

Pinout & Package

XC822MT1FRIAAFXUMA1 is housed in a PG-TSSOP-16 package (16-pin thin shrink small outline package), lead-free and RoHS-compliant, with 0.65 mm pitch and exposed thermal pad for enhanced thermal performance in compact automotive modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with XC836MT-1FRAA and SAK-XC824MT-1FRAA, XC822MT1FRIAAFXUMA1 delivers the smallest Flash/RAM footprint and lowest power profile among XC82x variants - ideal for cost-sensitive, thermally constrained applications where CAN or dual UART are unnecessary.

Availability

XC822MT1FRIAAFXUMA1 is available at Aetrix Electronics and suitable for automotive door modules, industrial fan controllers, smart lighting drivers, and appliance control panels requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for XC822MT1FRIAAFXUMA1 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 MCUs, and security solutions, with global R&D and manufacturing infrastructure.

XC822MT1FRIAAFXUMA1 belongs to the XC800 family - designed specifically for cost-optimized, high-reliability automotive body electronics and industrial control applications requiring integrated analog peripherals and extended temperature operation.

FAQ

What is the maximum operating frequency of the XC822MT1FRIAAFXUMA1?

The XC822MT1FRIAAFXUMA1 supports a maximum system clock frequency of 24 MHz, derived from its internal 48 MHz oscillator divided by 2. This enables zero-wait-state execution of 8051-compatible instructions, achieving up to 12 MIPS performance. External crystals up to 20 MHz may also be used with the OSC1/OSC2 pins, though internal RC operation is typical for automotive applications requiring reduced component count.

Does the XC822MT1FRIAAFXUMA1 support in-system programming?

Yes - the XC822MT1FRIAAFXUMA1 supports in-system programming via its single-pin SPD (Serial Programming and Debug) interface. This allows full flash programming, erase, and verification without removing the device from the PCB. The SPD interface uses a proprietary protocol over a single bidirectional pin with dedicated reset functionality, eliminating the need for multi-pin debug headers and reducing board space requirements.

How many ADC input channels does the XC822MT1FRIAAFXUMA1 have, and what is their resolution?

The XC822MT1FRIAAFXUMA1 features a 10-bit successive-approximation ADC with four physical input channels (AN0–AN3), all accessible via Port 0 pins. It supports up to three differential input configurations and includes programmable digital low-pass filtering and data reduction, enabling effective resolution up to 13 bits for noise-sensitive measurements such as temperature or current sensing in automotive and industrial settings.

Is the XC822MT1FRIAAFXUMA1 qualified for automotive applications?

Yes - the XC822MT1FRIAAFXUMA1 is qualified to AEC-Q100 Grade 1 (SAK variant) with operating temperature range of -40 °C to +125 °C. It includes automotive-specific features including brownout detection on both I/O and core supplies, loss-of-clock detection, and robust ESD protection. The device is widely deployed in door modules, seat controls, and lighting systems where extended temperature operation and functional safety compliance are required.