Texas Instruments S5LS20216ASPGEQQ1

Overview

S5LS20216ASPGEQQ1 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 integrates FlexRay (2-channel), three CAN controllers (DCAN), two LIN/UART interfaces, two 12-bit MibADCs (24 total channels), and NHET timer (32 channels) for automotive safety-critical real-time control.

For engineers reviewing the S5LS20216ASPGEQQ1 datasheet, S5LS20216ASPGEQQ1 pinout, S5LS20216ASPGEQQ1 application, or S5LS20216ASPGEQQ1 equivalent, key selection considerations include ASIL-D compliance support, dual-CPU lockstep execution, ECC-protected memory hierarchy, and peripheral redundancy for fault-tolerant automotive ECU design.

Technical Context

The S5LS20216ASPGEQQ1 implements a dual-core lockstep architecture where both Cortex-R4F CPUs execute identical instructions and compare results in real time, enabling detection of transient and permanent faults. Its safety subsystem includes CPU and memory BIST, Error Signaling Module (ESM) with dedicated ERROR pin, and parity protection across all peripheral RAMs (MibSPI, DCAN mailboxes, NHET RAM, FlexRay message RAM).

It features a Frequency-Modulated Zero-Pin PLL (FMzPLL) clock module with oscillator and PLL monitoring, supporting system clock generation up to 160 MHz. The device uses big-endian memory format and provides a 16-bit External Memory Interface (EMIF) with four chip selects, 22-bit address bus, and 16-bit data bus - exclusively available in the PGE package variant.

Key Specifications

Pinout & Package

Package: 144-pin Quad Flat Pack (PGE), green RoHS-compliant. Pin count and I/O allocation match TMS570LS20216 specification: 68 total peripheral I/O pins, including 8 dedicated GIO pins with external interrupt capability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S5LS20216ASPGEQQ1, the TMS570LS20206PGEQQ1 reduces clock headroom and omits FlexRay, while S5LS10216ASPGEQQ1 cuts Flash capacity by 50% and removes EMIF/ETM - both retain lockstep safety architecture but trade off performance, memory, or debug capability for cost or footprint optimization.

Availability

S5LS20216ASPGEQQ1 is available at Aetrix Electronics and suitable for automotive brake control units, electric power steering systems, transmission control modules, and safety gateway ECUs requiring stable component supply and long-term lifecycle support.

Supply support for S5LS20216ASPGEQQ1 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 company specializing in analog, embedded processing, and digital signal processing technologies, with deep expertise in automotive safety microcontrollers.

The TMS570LS series was designed specifically for ASIL-D automotive applications, integrating hardware safety mechanisms (lockstep CPUs, ECC, BIST, ESM) and real-time peripherals (FlexRay, DCAN, NHET) to meet ISO 26262 requirements out-of-the-box.

FAQ

What safety certifications does the S5LS20216ASPGEQQ1 support?

The S5LS20216ASPGEQQ1 is architected to support ISO 26262 ASIL-D compliance through integrated hardware safety features: dual-core lockstep execution, ECC on Flash and SRAM, CPU and memory BIST, Error Signaling Module (ESM) with external ERROR pin, and parity protection across all peripheral memories. Texas Instruments provides safety manuals, FMEDA reports, and diagnostic software libraries to accelerate functional safety qualification of systems using the S5LS20216ASPGEQQ1.

Does the S5LS20216ASPGEQQ1 include an External Memory Interface (EMIF)?

Yes, the S5LS20216ASPGEQQ1 includes a 16-bit External Memory Interface (EMIF) with 22-bit address bus, four chip selects, and support for asynchronous memories. This feature is available only in the PGE package variant (S5LS20216ASPGEQQ1) and is absent in ZWT-package devices. The EMIF enables connection to external EEPROM, SRAM, or FPGA co-processors - critical for calibration storage and hardware acceleration in automotive ECUs.

What is the maximum operating frequency of the S5LS20216ASPGEQQ1?

The S5LS20216ASPGEQQ1 operates at a maximum system clock frequency of 160 MHz, delivering over 250 DMIPS of performance. This clock speed is achievable in pipeline mode with the FMzPLL clock module and is validated across the full industrial temperature range (–40°C to 125°C). The 160 MHz rating applies specifically to the S5LS20216ASPGEQQ1 variant - other family members like the S5LS20206ASPGEQQ1 are rated for 140 MHz.

How many CAN controllers does the S5LS20216ASPGEQQ1 integrate?

The S5LS20216ASPGEQQ1 integrates three DCAN (Dual-CAN) controllers: DCAN1 and DCAN2 each support 64 mailboxes, while DCAN3 supports 32 mailboxes. All three controllers implement the CAN 2.0B protocol and operate at up to 1 Mbps. Mailbox RAM includes parity protection, and the DCAN modules are fully compatible with ISO 11898-1 and SAE J2284 standards - essential for automotive network redundancy and diagnostics.

Is the S5LS20216ASPGEQQ1 pin-compatible with other TMS570LS family members in the PGE package?

Yes, the S5LS20216ASPGEQQ1 is pin-compatible with other PGE-package TMS570LS devices including S5LS20206ASPGEQQ1, S5LS10216ASPGEQQ1, and S5LS10206ASPGEQQ1. All share identical 144-pin QFP mechanical layout, power pin assignments, and core peripheral pin mappings (e.g., CAN, LIN, MibSPI, GIO). However, feature availability (e.g., FlexRay, EMIF, ETM) varies by part number - PCB design must account for unused pins being NC or functionally disabled in lower-tier variants.