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Infineon Technologies SAA-XC866L-4FRA 5V BE
- Part No.:
- SAA-XC866L-4FRA 5V BE
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SAA-XC866L-4FRA 5V BE.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,344
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Product details
Overview
SAA-XC866L-4FRA 5V BE 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 4 KB Flash, 256 B RAM, 512 B XRAM, 8 KB Boot ROM, a 10-bit 8-channel ADC, three 16-bit timers (T0/T1/T2), CCU6 PWM unit, UART, SSC, and on-chip debug support. It operates at 5 V I/O supply with internal 2.5 V core regulation and targets automotive body electronics and industrial control.
For engineers reviewing the SAA-XC866L-4FRA 5V BE datasheet, SAA-XC866L-4FRA 5V BE pinout, SAA-XC866L-4FRA 5V BE application, or SAA-XC866L-4FRA 5V BE equivalent, key selection criteria include its PG-TSSOP-38 package, LIN-capable UART, embedded voltage regulator, -40 °C to +140 °C temperature grade, and flash-based field-programmability for cost-sensitive embedded control.
Technical Context
The SAA-XC866L-4FRA 5V BE implements the XC800 architecture with dual data pointers and no wait-state memory access. Its clock generation includes an on-chip oscillator and PLL with loss-of-lock detection, supporting flexible system timing from crystal or RC sources.
It features integrated power management: brownout reset for the 2.5 V core supply, programmable watchdog timer, and three low-power modes (slow-down, idle, power-down with RXD/EXINT0 wake-up). The 10-bit ADC supports configurable conversion sequences across eight analog inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | XC800 (8051-compatible) with two-clock-per-cycle execution and dual data pointers |
| Flash Memory | 4 KB - non-volatile program storage with memory protection strategy |
| RAM | 256 bytes internal RAM + 512 bytes XRAM for extended data handling |
| ADC | 10-bit resolution, 8-channel input - enables precise sensor interfacing in motor control or HVAC systems |
| Timers | Three 16-bit timers (T0/T1/T2) plus CCU6 capture/compare unit - supports PWM generation and time-critical event capture |
| Operating Temperature | -40 °C to +140 °C - qualified for under-hood automotive and high-temp industrial environments |
| I/O Supply Voltage | 5.0 V - compatible with legacy 5 V logic families and robust noise immunity |
| Package | PG-TSSOP-38 - surface-mount, 38-pin thin shrink small outline package with 0.5 mm pitch |
Pinout & Package
Package: PG-TSSOP-38 (38-pin, 0.5 mm pitch, 9.7 mm × 4.4 mm body, 1.2 mm max height), lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O Power Supply | 5 V supply for all digital I/O ports (Port 0–3); decoupling required near pin |
| VDDCORE | Core Logic Supply | Internally regulated 2.5 V for CPU and peripherals; derived from VDDIO via on-chip LDO |
| XTAL1/XTAL2 | Crystal Oscillator Input/Output | Connects external quartz crystal (1–20 MHz) or ceramic resonator for primary clock source |
| RST | Reset Input | Active-low asynchronous reset; internal pull-up; accepts external reset signal or power-on reset pulse |
| P0.0–P0.7 | Port 0 Bidirectional I/O | 8-bit quasi-bidirectional port; open-drain capable; multiplexed with address/data bus in external memory mode |
| P1.0–P1.4 | Port 1 Digital I/O | 5-bit general-purpose I/O; P1.0–P1.3 support analog input for ADC channel selection |
| P2.0–P2.7 | Port 2 Digital I/O | 8-bit quasi-bidirectional port; supports LIN UART TX/RX when configured as alternative function |
| P3.0/P3.1 | UART RXD/TXD | Full-duplex serial interface pins; support LIN protocol header transmission and response handling |
Key Features
| Feature | Design Value |
|---|---|
| Embedded Voltage Regulator | On-chip LDO generates stable 2.5 V core supply from 5 V I/O rail - eliminates need for external core regulator |
| LIN Protocol Support | UART hardware with dedicated LIN header transmission logic - enables direct compliance with LIN 2.1 physical layer without software overhead |
| Memory Protection Strategy | Configurable write/execute protection for Flash and Boot ROM - prevents accidental firmware corruption during field updates |
| Power-Saving Wake-Up Sources | RXD line activity and EXINT0 external interrupt - allows ultra-low-power standby with sub-millisecond wake-up latency |
| On-Chip Debug Monitor | 1 KB monitor ROM + 64 B monitor RAM within Boot ROM - enables in-system debugging without external emulator hardware |
Applications
| Automotive Body Control Module | Industrial Motor Drive Interface |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, mirrors, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: Primary MCU managing LIN slave communication, analog sensor reading (potentiometers, temp), and PWM-driven actuator drivers. Use Value: Integrated LIN UART and 10-bit ADC reduce BOM count; -40 °C to +140 °C rating ensures reliability in cabin and under-hood locations. |
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and pump systems. IC Role / Device Role / Timing Role: Real-time controller generating complementary PWM signals via CCU6, sampling current feedback via ADC, and communicating status over UART. Use Value: Three synchronized 16-bit timers and hardware CCU6 enable precise dead-time insertion and phase alignment - critical for inverter gate drive safety. |
| Smart Appliance Control Unit | Industrial Sensor Aggregator |
|
Use Scenario: Main control board in washing machines and dishwashers coordinating motor, heater, valve, and user interface functions. IC Role / Device Role / Timing Role: System-on-chip managing multiple 5 V peripherals, reading thermistors and pressure sensors, and driving relay/SCR outputs. Use Value: 5 V I/O compatibility simplifies interface to legacy appliance components; 4 KB Flash supports feature-rich firmware with OTA update capability. |
Use Scenario: Local edge node collecting analog signals (4–20 mA, 0–10 V) from pressure, flow, and temperature transmitters in factory automation. IC Role / Device Role / Timing Role: Signal conditioner and protocol translator converting analog inputs to UART/SSC digital output for PLC or gateway ingestion. Use Value: Eight ADC channels with programmable gain and sample-and-hold allow simultaneous multi-sensor acquisition without external mux or amplifier stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAK-TC1766-128F133HR BA | 32-bit TriCore™ architecture, 133 MHz, 128 KB Flash, 16 KB RAM - significantly higher performance and memory | Targets complex real-time control (e.g., engine management), not cost-sensitive body electronics | Select only if migrating from 8-bit to 32-bit platform with full AUTOSAR stack requirements |
| XC886CN-8FF 5V AC | Same XC800 family, 8 KB Flash, enhanced ADC (12-bit), additional CAPCOM2 unit, identical PG-TSSOP-38 package | Direct upgrade path with higher resolution sensing and extra PWM channels - same footprint and toolchain | Choose when needing >10-bit ADC accuracy or additional timer resources without PCB redesign |
Compared with SAK-TC1766-128F133HR BA, the SAA-XC866L-4FRA 5V BE offers lower cost and power for simpler control tasks; compared with XC886CN-8FF 5V AC, it trades Flash size and ADC resolution for reduced bill-of-materials and proven qualification in high-volume automotive modules.
Availability
SAA-XC866L-4FRA 5V BE is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, smart appliance control, and sensor aggregation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SAA-XC866L-4FRA 5V 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 microcontrollers, with global R&D and manufacturing infrastructure.
The SAA-XC866 belongs to the XC800 family - designed specifically for cost-optimized, high-reliability 8-bit control in automotive body electronics and industrial applications where 5 V compatibility, LIN support, and extended temperature operation are essential.
FAQ
Is the SAA-XC866L-4FRA 5V BE pin-compatible with other XC800 family members in PG-TSSOP-38?
No - while several XC800 variants use PG-TSSOP-38, pin assignments differ across Flash size, peripheral configuration, and voltage grade. For example, SAA-XC866L-4FRA 5V BE assigns P1.0–P1.3 as ADC inputs, whereas XC886CN-8FF 5V AC maps those pins to CAPCOM2 functions. Always verify pin definitions against the specific device's datasheet section 2.3 and 2.4.
Does this device support in-system programming (ISP) via UART?
Yes - the SAA-XC866L-4FRA 5V BE supports UART-based bootloader programming using the on-chip 8 KB Boot ROM. The bootloader enables Flash reprogramming without external debugger, provided the UART pins (P3.0/P3.1) are accessible and the device is held in reset during entry sequence per Application Note AP32164.
What is the maximum ADC sampling rate achievable with this MCU?
The ADC achieves up to 100 kSPS maximum conversion rate, limited by the internal ADC clock (derived from CPU clock divided by 4–64). At 26.67 MHz CPU clock, the fastest ADC clock is 6.67 MHz, enabling 100 kSPS for 10-bit conversions with auto-triggering from Timer 2 overflow - confirmed in Section 3.18.2 of the datasheet.
Can the embedded voltage regulator supply external circuitry?
No - the internal 2.5 V LDO supplies only the core logic (CPU, timers, Flash controller) and is not rated for external load. VDDCORE is not accessible externally; all external components must be powered from VDDIO (5 V) or a separate regulator. Drawing current from VDDCORE risks instability and violates absolute maximum ratings.
SAA-XC866L-4FRA 5V BE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 38-TFSOP (0.173", 4.40mm Width)
- Series:
- XC8xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- XC800
- Core Size:
- 8-Bit
- Speed:
- 86MHz
- Connectivity:
- LINbus, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 27
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 768 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.3V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 140°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SAA-XC866L-4FRA 5V BE FAQ
1.How can I place an order for SAA-XC866L-4FRA 5V BE through Aetrix?
Please submit a Request for Quotation (RFQ) for SAA-XC866L-4FRA 5V BE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SAA-XC866L-4FRA 5V BE reliable?
The price and inventory of SAA-XC866L-4FRA 5V BE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAA-XC866L-4FRA 5V BE is usually 5 days.
3.What payment methods are accepted for SAA-XC866L-4FRA 5V BE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAA-XC866L-4FRA 5V BE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAA-XC866L-4FRA 5V BE?
SAA-XC866L-4FRA 5V BE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAA-XC866L-4FRA 5V BE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SAA-XC866L-4FRA 5V BE?
For technical support, including SAA-XC866L-4FRA 5V BE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAA-XC866L-4FRA 5V BE requirements.
6.How does Aetrix verify that SAA-XC866L-4FRA 5V BE is sourced from the original manufacturer or authorized distributors?
All SAA-XC866L-4FRA 5V BE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SAA-XC866L-4FRA 5V BE meets industry standards.
7.What is the process for return or replacement of SAA-XC866L-4FRA 5V BE?
All SAA-XC866L-4FRA 5V BE units undergo pre-shipment inspection (PSI). If there is an issue with SAA-XC866L-4FRA 5V BE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SAA-XC866L-4FRA 5V BE part is unused and in its original packaging.
Return procedure for SAA-XC866L-4FRA 5V BE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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