Infineon Technologies SAA-XC866L-2FRA BE

Overview

SAA-XC866L-2FRA BE from Infineon Technologies is an 8-bit single-chip microcontroller based on the XC800 core (8051-compatible), featuring 8 KB Flash, 256 B RAM, 512 B XRAM, and integrated 10-bit 8-channel ADC. It operates with core logic at 2.5 V (internally regulated) and I/O at 3.3 V, supporting LIN protocol and UART/SSC interfaces for automotive body electronics control.

For engineers reviewing the SAA-XC866L-2FRA BE datasheet, SAA-XC866L-2FRA BE pinout, SAA-XC866L-2FRA BE application, or SAA-XC866L-2FRA BE equivalent, key selection criteria include its PG-TSSOP-38 package, 16-bit CCU6 PWM unit, brownout reset capability, LIN header transmission support, and -40 °C to +140 °C extended temperature grade.

Technical Context

The SAA-XC866L-2FRA BE implements a two-clock-per-machine-cycle 8051-compatible core with dual data pointers and on-chip memory protection via bit-level and page-level schemes. Its clock generation includes an internal oscillator with PLL and loss-of-lock detection, enabling stable 26.67 MHz system clock operation.

Peripheral integration includes three 16-bit timers (T0/T1/T2), a dedicated Capture/Compare Unit 6 (CCU6) for motor control PWM, full-duplex UART with baud-rate generator, synchronous serial channel (SSC), and LIN 2.1-compliant header transmission logic - all controllable via dedicated SFRs and interrupt vectors.

Key Specifications

Pinout & Package

Package: PG-TSSOP-38 (Plastic Thin Shrink Small Outline Package, 38-pin, 0.65 mm lead pitch, 9.7 mm × 4.4 mm body).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAA-XC866L-2FRA BE, the TC1766 offers scalable compute headroom for future software updates but requires PCB redesign; the SAB90XC866L variant reduces thermal margin while preserving full functional equivalence for non-engine-bay roles.

Availability

SAA-XC866L-2FRA BE is available at Aetrix Electronics and suitable for automotive body electronics, LIN-based sensor nodes, and under-hood control modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SAA-XC866L-2FRA BE 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 security solutions, with global R&D and manufacturing infrastructure.

The SAA-XC866L-2FRA BE belongs to the XC800 family - designed specifically for cost-optimized, high-reliability automotive body electronics requiring integrated LIN, robust ADC, and extended temperature operation.

FAQ

What is the maximum operating frequency of the SAA-XC866L-2FRA BE?

The device achieves a maximum system clock frequency of 26.67 MHz using its internal PLL with external crystal input. This is derived from a 1–20 MHz crystal source multiplied by the PLL, and enables zero-wait-state execution of the two-clock-per-cycle XC800 core. The actual achievable frequency depends on VDD stability and ambient temperature within the -40 °C to +140 °C range.

Does the SAA-XC866L-2FRA BE support in-system programming (ISP)?

Yes - it supports in-system programming via UART using the on-chip bootloader located in the 8 KB Boot ROM. The bootloader enables Flash reprogramming without external debug hardware, provided the device is powered and the UART interface is accessible. No external high-voltage programming signal is required.

How is the 10-bit ADC calibrated for accuracy across temperature?

The ADC includes factory-trimmed offset and gain calibration values stored in special function registers. These values are automatically applied during conversion, delivering ±2 LSB integral nonlinearity over the full -40 °C to +140 °C range. No user calibration routine is required for standard operation.

Can the CCU6 unit generate complementary PWM outputs with programmable dead time?

Yes - the CCU6 supports center-aligned and edge-aligned PWM modes with independent dead-time insertion (programmable in 12.5 ns steps) on each output pair. It also includes hardware fault shutdown inputs (CCPOS0/CCNEG0) that disable outputs within one clock cycle upon overcurrent detection.