Overview
The STR911FAM42X6 is a 16/32-bit Flash microcontroller from STMicroelectronics, based on the ARM966E-S™ RISC core. This microcontroller is part of the STR91xFA family and is designed for high-performance applications requiring advanced communication interfaces and robust control capabilities. It features a 96 MHz ARM9E core with a Harvard architecture and a 5-stage pipeline, ensuring high processing efficiency and support for single-cycle DSP instructions. The device is well-suited for a variety of industrial, automotive, and consumer electronics applications due to its comprehensive set of peripherals and power management features.
Key Specifications
| Parameter | Value |
|---|---|
| Core | ARM966E-S™ 16/32-bit RISC core |
| Clock Speed | Up to 96 MHz |
| Flash Memory | 256 KB (main), 32 KB (secondary) |
| SRAM | 64 KB or 96 KB (optional battery backup) |
| Communication Interfaces | 10/100 Ethernet MAC, USB Full-speed, CAN 2.0B, 3 x UARTs, 2 x Fast I2C, 2 x SPI/SSI/MICROWIRE |
| Timers | 4 x 16-bit standard timers with DMA |
| ADC | 8-channel, 10-bit ADC with DMA |
| DMA Channels | 9 programmable DMA channels |
| Power Modes | Run, Idle, Sleep (as low as 50 uA) |
| Package | LQFP-80 |
Key Features
- High-Performance Core: ARM966E-S™ 16/32-bit RISC core with Harvard architecture and 5-stage pipeline, supporting single-cycle DSP instructions.
- Advanced Communication: Includes 10/100 Ethernet MAC, USB Full-speed, CAN 2.0B, three 16550-style UARTs, two Fast I2C, and two SPI/SSI/MICROWIRE channels.
- Memory and Storage: Dual burst Flash memories (256 KB main, 32 KB secondary) and SRAM (64 KB or 96 KB with optional battery backup).
- Power Management: Flexible power modes including Run, Idle, and Sleep modes, with a sleep mode as low as 50 uA.
- Peripheral Set: Includes 8-channel 10-bit ADC, 4 standard timers with DMA, and a 3-phase induction motor controller.
- Debug and Trace: JTAG interface with boundary scan and an embedded trace module (ARM® ETM9™).
Applications
- Industrial Automation: Suitable for control systems, motor control, and industrial networking applications.
- Automotive Systems: Used in vehicle control units, infotainment systems, and advanced driver-assistance systems (ADAS).
- Consumer Electronics: Applicable in smart home devices, set-top boxes, and other consumer electronics requiring high-performance processing and multiple communication interfaces.
- Medical Devices: Can be used in medical equipment that requires robust control and communication capabilities.
Q & A
- What is the core architecture of the STR911FAM42X6?
The STR911FAM42X6 is based on the ARM966E-S™ 16/32-bit RISC core with a Harvard architecture and a 5-stage pipeline. - What is the maximum clock speed of the STR911FAM42X6?
The maximum clock speed is up to 96 MHz. - How much Flash and SRAM memory does the STR911FAM42X6 have?
The device has 256 KB of main Flash memory and 32 KB of secondary Flash memory, along with 64 KB or 96 KB of SRAM. - What communication interfaces are available on the STR911FAM42X6?
The device includes 10/100 Ethernet MAC, USB Full-speed, CAN 2.0B, three 16550-style UARTs, two Fast I2C, and two SPI/SSI/MICROWIRE channels. - Does the STR911FAM42X6 support power-saving modes?
Yes, it supports Run, Idle, and Sleep modes, with the sleep mode consuming as low as 50 uA. - What type of package is the STR911FAM42X6 available in?
The STR911FAM42X6 is available in an LQFP-80 package. - Does the STR911FAM42X6 have built-in motor control capabilities?
Yes, it includes a 3-phase induction motor controller. - How many DMA channels does the STR911FAM42X6 have?
The device has 9 programmable DMA channels. - What is the resolution and conversion time of the ADC on the STR911FAM42X6?
The ADC is an 8-channel, 10-bit converter with a conversion time of 0.7 usec. - Is the STR911FAM42X6 suitable for industrial automation applications?
Yes, it is well-suited for industrial automation due to its robust control and communication capabilities.
