8-bit MCU

The ST40RA is the first member of the ST40 family. Based on the SH-4, SuperH CPU core from SuperH Inc, the ST40RA is designed to work as a standalone device, or as part of a two chip solution for application specific systems.

Example applications the ST40RA is designed for include digital consumer, embedded communications, industrial and automotive. The high connectivity of the ST40 through its PCI bus and its dual memory uses makes it a versatile device, ideal for data-intensive and high performance applications.

Key Features

  • 32-bit SuperH CPU64-bit hardware FPU (1.16 GFLOPS)128-bit vector unit for matrix manipulationsup to 200MHz, 360 MIPS (DMIPS 1.1)Up to 664 Mbytes/s CPU bandwidthDirect mapped, on-chip, ICache (8 Kbytes) and DCache (16 Kbytes)
  • SuperHyway internal interconnectHigh throughput, low latency, split transaction packet router
  • High-performance 5-channel DMA engine, supporting 1D or 2D block moves and linked lists
  • Standard ST40 peripherals2 synchronous serial ports with FIFO (SCIF)Timers and a real-time clock
  • Memory protection and VM system support64-entry unified TLB, 4-entry instruction TLB4 Gbytes address space


Technical Documentation

Product Specifications
Description Version Size
DS2711 DS2711: 32-bit embedded superH device 2.3 1 MB
Application Notes
Description Version Size
AN1709 AN1709: EMC design guide for ST microcontrollers 2.0 843 KB
AN1181 AN1181: Electrostatic discharge sensitivity measurement 1.6 49 KB
AN886 AN886: Selecting between ROM, FASTROM and OTP for a microcontroller 1.3 124 KB
Technical Notes & Articles
Description Version Size
TN1163 TN1163: Description of WLCSP for microcontrollers and recommendations for its use 4.0 1 MB
User Manuals
Description Version Size
UM0341 UM0341: SH-4 32-bit CPU Core Architecture 1.4 2 MB
UM0339 UM0339: SuperH™(SH) 32-bit RISC series SH-4, ST40 system architecture, volume 1: system 2.3 3 MB
UM0340 UM0340: SuperH™(SH) 32-bit RISC series SH-4, ST40 system architecture, volume 2: bus interfaces 2.3 2 MB

Tools and Software

Embedded Software
MCUs Embedded Software
Support & Community

Sample & Buy

Part Number Marketing Status Quantity Unit Price (US$) * Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ST40RA200XH6E NRND - - PBGA 372 27x27x2.6 Tray - - NEC 3A991A2 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST40RA200XH6E NRNDPBGA 372 27x27x2.6IndustrialEcopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.