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Texas Instruments S5LS20206ASZWTQQ1
- Part No.:
- S5LS20206ASZWTQQ1
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 337-LFBGA
- Datasheet:
-
S5LS20206ASZWTQQ1.pdf
- Description:
- IC MCU 16/32B 2MB FLASH 337NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,611
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Product details
Overview
S5LS20206ASZWTQQ1 from Texas Instruments is a safety-certified 16/32-bit RISC Flash microcontroller featuring dual ARM® Cortex™-R4F CPUs in lockstep, 2MB Flash with ECC, 160KB SRAM with ECC, and operation up to 160 MHz. It delivers >250 DMIPS for real-time control in automotive safety-critical systems including brake-by-wire and steering control units.
For engineers reviewing the S5LS20206ASZWTQQ1 datasheet, S5LS20206ASZWTQQ1 pinout, S5LS20206ASZWTQQ1 application, or S5LS20206ASZWTQQ1 equivalent, key selection considerations include ASIL-D compliance support, FlexRay dual-channel timing integrity, DCAN mailbox count (64 × 2), and ZWT 337-pin BGA package compatibility with automotive ECU layouts.
Technical Context
The S5LS20206ASZWTQQ1 implements lockstep CPU execution with hardware BIST, ECC on both Flash and SRAM, and parity protection across peripheral memories (MibSPI buffers, CAN mailboxes, NHET RAM, FlexRay message RAM). Its FMzPLL clock module provides frequency-modulated PLL output with integrated oscillator and clock monitoring for fail-safe timing.
Peripheral architecture includes three MibSPI interfaces (128 buffers each, parity protected), two 12-bit MibADCs (24 total channels, 64-word parity buffers per ADC), dual-channel FlexRay controller (8KB message RAM with MPU), and three DCAN controllers - two with 64 mailboxes and one with 32 mailboxes - all supporting CAN 2.0B at up to 1 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4F dual-core in lockstep, enabling ASIL-D functional safety compliance per ISO 26262. |
| Max Clock Speed | 160 MHz system clock, delivering >250 DMIPS for deterministic real-time control loop execution. |
| Flash Memory | 2MB with SECDED ECC, organized in four 512KB banks; supports pipelined access at full 160 MHz. |
| RAM | 160KB SRAM with SECDED ECC, used for critical data storage and runtime variables in safety-critical tasks. |
| FlexRay Interface | Dual-channel FlexRay controller with 8KB parity-protected message RAM and dedicated FTU for autonomous transfers. |
| DCAN Controllers | Three DCAN modules: two with 64 mailboxes (CAN 2.0B, up to 1 Mbps), one with 32 mailboxes; all mailbox RAM parity-protected. |
| NHET Channels | 32 programmable high-end timer I/O channels with 128-word parity-protected RAM and dedicated HTU transfer unit. |
Pinout & Package
Package: 337-pin Ball Grid Array (ZWT), RoHS-compliant green package, 17 mm × 17 mm, 0.8 mm pitch, thermally enhanced for automotive under-hood operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCP1 | Flash Pump Supply | Provides dedicated 3.3V supply for Flash program/erase operations; must be externally regulated and decoupled. |
| OSCIN / OSCOUT | Crystal Oscillator Input/Output | Supports external crystal (typically 20 MHz) for primary clock source; enables FMzPLL frequency multiplication. |
| RST / PORRST | Reset Inputs | Asynchronous reset assertion (RST) and power-on reset (PORRST) with internal voltage monitor supervision. |
| FRAYTX1 / FRAYRX1 | FlexRay Channel 1 Differential Pair | High-speed differential signaling interface (10 Mbps) for time-triggered communication in chassis domain ECUs. |
| CAN1TX / CAN1RX | Controller Area Network Channel 1 | Single-ended CAN 2.0B physical layer interface supporting up to 1 Mbps in electrically noisy environments. |
| MIBSPI1SIMO / SOMI / CLK | MibSPI1 Serial Interface | Full-duplex synchronous serial interface with 128 parity-protected buffers for sensor/actuator communication. |
| GIOA[7:0] | Dedicated General-Purpose I/O | Eight GPIO pins with configurable interrupt capability, used for discrete diagnostics, status signaling, or wake-up inputs. |
| ECLK | Programmable External Clock Output | Provides user-configurable clock derived from VCLK; used for synchronizing external peripherals or sensors. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-CPU Lockstep Execution | Hardware-enforced identical instruction execution across two Cortex-R4F cores with comparison logic, enabling fault detection within one cycle. |
| SECDED ECC Memory Protection | Corrects single-bit errors and detects double-bit errors in 2MB Flash and 160KB SRAM, meeting ASIL-D memory integrity requirements. |
| FlexRay Dual-Channel w/ FTU | Independent dual-channel FlexRay with 8KB message RAM, MPU-protected transfer unit, and deterministic 10 Mbps per channel. |
| Three DCAN Controllers | Two 64-mailbox DCANs + one 32-mailbox DCAN, all with parity-protected mailbox RAM and CAN 2.0B protocol compliance. |
| Two 12-Bit MibADCs | 24-channel total analog input capability with 64-word parity buffers per ADC, supporting grouped sequential conversion with external trigger. |
| Embedded Trace & Calibration | ETMR4 instruction/data trace, RTP for RAM access logging, DMM for external parameter injection, and POM for Flash overlay without reprogramming. |
Applications
| Brake-by-Wire Control Unit | Electric Power Steering (EPS) |
|---|---|
|
Use Scenario: Real-time torque calculation, motor position feedback, and fail-safe actuation in hydraulic/electric brake systems. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D software with lockstep CPU verification and dual-channel FlexRay for redundancy. Use Value: Enables certified brake control with <100 µs end-to-end latency, supported by 32 NHET channels for PWM generation and 24 ADC inputs for sensor fusion. |
Use Scenario: Closed-loop motor control, road feel emulation, and collision avoidance torque intervention in steer-by-wire architectures. IC Role / Device Role / Timing Role: Central MCU managing torque vectoring, CAN-based vehicle network integration, and LIN-connected sensors. Use Value: Delivers deterministic 160 MHz execution for sub-millisecond motor current loops, backed by two 12-bit MibADCs for resolver and current sensing. |
| Advanced Driver Assistance Systems (ADAS) Domain Controller | Chassis Domain Gateway |
|
Use Scenario: Sensor fusion hub aggregating radar, camera, and ultrasonic inputs for adaptive cruise and automatic emergency braking. IC Role / Device Role / Timing Role: High-integrity processing node with CRC acceleration, DMA offload, and EMIF expansion for external vision processor interfacing. Use Value: Supports concurrent multi-sensor data ingestion via three MibSPIs (128 buffers each) and two UART/LIN interfaces for legacy sensor compatibility. |
Use Scenario: Protocol translation and message routing between CAN FD, FlexRay, and LIN networks in centralized vehicle architecture. IC Role / Device Role / Timing Role: Gateway MCU with three DCAN controllers, dual FlexRay, and EMIF for external buffer memory expansion. Use Value: Enables seamless cross-domain communication with 64-mailbox DCANs for high-priority actuator commands and FlexRay for time-triggered chassis coordination. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS570LS20216ZWTQQ1 | Same ZWT package and 2MB Flash, but rated for 160 MHz operation with full 32 NHET channels and dual FlexRay enabled. | Identical use case; differs only in production qualification grade (LS20216 is fully qualified, LS20206 is not recommended for new designs). | Select LS20216 for new designs requiring long-term supply assurance and full ASIL-D certification documentation. |
| S5LS10206ASZWTQQ1 | Same ZWT package but reduced configuration: 1MB Flash, 128KB RAM, no FlexRay, only two DCANs, and 25 NHET channels. | Targeted at cost-sensitive ASIL-B applications like body control modules where FlexRay and third CAN are unnecessary. | Choose LS10206 when safety requirements are lower and FlexRay/EMIF expansion is not required. |
Compared with S5LS20206ASZWTQQ1, TMS570LS20216ZWTQQ1 offers guaranteed long-term availability and full qualification for new designs, while S5LS10206ASZWTQQ1 reduces Flash, RAM, and peripheral count to meet ASIL-B cost targets - making S5LS20206ASZWTQQ1 a transitional option for legacy design refreshes only.
Availability
S5LS20206ASZWTQQ1 is available at Aetrix Electronics and suitable for automotive brake control, electric power steering, ADAS domain management, and chassis gateway applications requiring stable component supply across extended production lifecycles.
Supply support for S5LS20206ASZWTQQ1 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with deep expertise in automotive-grade ICs and functional safety solutions.
The TMS570LS series was designed specifically for ASIL-D automotive safety applications, integrating lockstep CPUs, memory ECC, and self-test logic to meet ISO 26262 requirements without external safety monitors.
FAQ
What is the functional safety qualification status of the S5LS20206ASZWTQQ1?
The S5LS20206ASZWTQQ1 is part of the TMS570LS family, which is qualified to ISO 26262 ASIL-D for hardware and supports ASIL-D software development. However, Texas Instruments explicitly marks this variant as "Not Recommended for New Designs" due to product lifecycle phase-out; it remains suitable for existing production continuity but not for new safety-critical designs requiring long-term support.
Does the S5LS20206ASZWTQQ1 support FlexRay communication?
Yes, the S5LS20206ASZWTQQ1 includes a dual-channel FlexRay controller with 8KB parity-protected message RAM and a dedicated FlexRay Transfer Unit (FTU). This enables deterministic, time-triggered communication at 10 Mbps per channel, essential for chassis domain coordination in automotive systems.
What memory protection mechanisms are implemented in the S5LS20206ASZWTQQ1?
The S5LS20206ASZWTQQ1 implements SECDED ECC on 2MB Flash and 160KB SRAM, parity protection on MibSPI buffers, CAN mailbox RAM, NHET RAM, and FlexRay message RAM, plus dedicated MPUs for DMA, HET-TU, FTU, and DMM - ensuring comprehensive memory integrity for ASIL-D compliance.
How many CAN controllers does the S5LS20206ASZWTQQ1 integrate, and what are their mailbox capacities?
The S5LS20206ASZWTQQ1 integrates three DCAN controllers: DCAN1 and DCAN2 each support 64 mailboxes with parity-protected RAM, while DCAN3 supports 32 mailboxes. All comply with CAN 2.0B and operate at up to 1 Mbps, enabling robust multi-bus automotive networking.
What is the significance of the 'ZWT' suffix in S5LS20206ASZWTQQ1?
The 'ZWT' suffix denotes the 337-pin Ball Grid Array package (17 mm × 17 mm, 0.8 mm pitch), which provides 115 peripheral I/O pins and thermal performance suited for under-hood automotive applications. This package supports full peripheral access including FlexRay, all three DCANs, and EMIF signals - unlike the smaller PGE QFP variant.
S5LS20206ASZWTQQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 337-LFBGA
- Series:
- Hercules™ TMS570 ARM® Cortex®-R
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-R4F
- Core Size:
- 16/32-Bit
- Speed:
- 160MHz
- Connectivity:
- CANbus, EBI/EMI, LINbus, SCI, SPI, UART/USART
- Peripherals:
- DMA, POR
- Number of I/O:
- 115
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 160K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.35V ~ 1.65V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S5LS20206ASZWTQQ1 FAQ
1.How can I place an order for S5LS20206ASZWTQQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for S5LS20206ASZWTQQ1 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 S5LS20206ASZWTQQ1 reliable?
The price and inventory of S5LS20206ASZWTQQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S5LS20206ASZWTQQ1 is usually 5 days.
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4.How is shipping managed for S5LS20206ASZWTQQ1?
S5LS20206ASZWTQQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S5LS20206ASZWTQQ1 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 S5LS20206ASZWTQQ1?
For technical support, including S5LS20206ASZWTQQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S5LS20206ASZWTQQ1 requirements.
6.How does Aetrix verify that S5LS20206ASZWTQQ1 is sourced from the original manufacturer or authorized distributors?
All S5LS20206ASZWTQQ1 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 S5LS20206ASZWTQQ1 meets industry standards.
7.What is the process for return or replacement of S5LS20206ASZWTQQ1?
All S5LS20206ASZWTQQ1 units undergo pre-shipment inspection (PSI). If there is an issue with S5LS20206ASZWTQQ1, 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 S5LS20206ASZWTQQ1 part is unused and in its original packaging.
Return procedure for S5LS20206ASZWTQQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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