Texas Instruments S5LS20216ASZWTQQ1

Overview

S5LS20216ASZWTQQ1 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 such as electric power steering and brake-by-wire.

For engineers reviewing the S5LS20216ASZWTQQ1 datasheet, S5LS20216ASZWTQQ1 pinout, S5LS20216ASZWTQQ1 application, or S5LS20216ASZWTQQ1 equivalent, key selection considerations include ASIL-D compliance support, FlexRay™ dual-channel capability, triple CAN controllers (two with 64 mailboxes), and integrated error signaling with external ERROR pin.

Technical Context

The S5LS20216ASZWTQQ1 implements a lockstep dual-core architecture with CPU and memory BIST, ECC on Flash/SRAM, and parity on peripheral memories. Its FMzPLL-based clock module provides frequency-modulated PLL operation with oscillator and PLL monitoring, supporting system clock generation up to 160 MHz.

It integrates three MibSPI interfaces (each with 128 buffers and parity), two 12-bit MibADCs (24 total channels, 64-word parity-protected buffers each), and a 32-channel NHET timer with dedicated transfer unit and MPU protection. The device includes a 16-bit External Memory Interface (EMIF) with four chip selects and supports big-endian memory mapping.

Key Specifications

Pinout & Package

Package: 337-ball ZWT (Green, RoHS-compliant BGA). Dimensions: 17 mm × 17 mm, 0.8 mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar safety microcontroller applications.

Compared with S5LS20216ASZWTQQ1, the TMS570LS20206AZWTQQ1 trades 20 MHz clock headroom for lower power, while S5LS10216ASZWTQQ1 reduces Flash/RAM and removes EMIF/ETM to cut cost - both retain identical safety architecture and pinout compatibility for migration within ZWT footprint.

Availability

S5LS20216ASZWTQQ1 is available at Aetrix Electronics and suitable for automotive EPS, brake-by-wire, and ADAS domain controller designs requiring stable component supply and long-term industrial lifecycle support.

Supply support for S5LS20216ASZWTQQ1 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 over 50 years of automotive IC experience.

The TMS570LS series was designed specifically for ISO 26262 ASIL-D automotive safety applications, integrating lockstep cores, memory ECC, and hardware self-test to eliminate single-point failures in critical drive systems.

FAQ

Is S5LS20216ASZWTQQ1 qualified for automotive safety applications?

Yes, S5LS20216ASZWTQQ1 is designed to meet ISO 26262 ASIL-D requirements. It features dual ARM® Cortex™-R4F CPUs in lockstep, ECC on 2MB Flash and 160KB SRAM, CPU and memory BIST, and an Error Signaling Module (ESM) with external ERROR pin - all documented in TI's functional safety documentation for the TMS570LS20216 device.

What package does S5LS20216ASZWTQQ1 use, and is it pin-compatible with other TMS570LS variants?

S5LS20216ASZWTQQ1 uses the 337-ball ZWT BGA package (17 mm × 17 mm, 0.8 mm pitch). It shares identical pinout with other ZWT-packaged TMS570LS devices including TMS570LS20206AZWTQQ1 and S5LS10216ASZWTQQ1 - enabling drop-in replacement within the same package family for design reuse.

Does S5LS20216ASZWTQQ1 support external memory expansion?

Yes, S5LS20216ASZWTQQ1 includes a 16-bit External Memory Interface (EMIF) with 22-bit address bus, four chip selects, and support for asynchronous memories up to 256 MB. This allows connection to external SRAM, NOR Flash, or FPGA peripherals - critical for ADAS domain controllers needing extended buffer space.

What debug and trace capabilities does S5LS20216ASZWTQQ1 provide?

S5LS20216ASZWTQQ1 integrates ARM CoreSight™ debug infrastructure including ETMR4 instruction/data trace, 16-bit RAM Trace Port (RTP), Data Modification Module (DMM), and Parameter Overlay Module (POM). These enable non-intrusive runtime analysis, live memory patching, and Flash-less parameter updates - essential for certification testing and field calibration.

Can S5LS20216ASZWTQQ1 operate without an external crystal?

No - S5LS20216ASZWTQQ1 requires an external crystal connected to OSCIN/OSCOUT pins to drive its FMzPLL-based clock system. The device does not include an internal RC oscillator capable of meeting ASIL-D timing accuracy requirements; crystal-based clocking is mandatory for safety-certified operation.