Description

The AS3524 is an ultra low-power microcontroller based on the ARM9 32bit processor combining strong calculating power and high performance interfaces commonly used within various application systems.

Using advanced 0.13µm process technology and a large on chip RAM leads to outstanding low power consumption of 0.3 mW/MHz for the ARM922T microcontroller core and 0.6 mW/MHz for the overall system measured with a typical audio SW application.

AS3524 is based on the ARM922TDMI processor, with 8K byte instruction, 8K byte data cache memories and embedded 320K Byte SRAM with performance from 20 ~ 266MHz.

The AS3524 SOC (system-on-a-Chip) features dedicated high speed interfaces for ATA IDE, USB2.0 HS-OTG and SDRAM ensuring maximum performance for download, upload, and playback.

Furthermore interfaces for NAND flashes, MMC/SD cards and Memory Stick ensure most flexible system design possibilities. Hardware support for parallel interfaces lower the CPU load serving complex and/or color user interfaces.

Additional serial high-speed data and control interfaces guarantee the connection to other peripherals and or processors in the system.

Two independently programmable PLLs generate the required frequencies for audio playback/recording, for the processor core and for the USB interface at the same time.

AS3524 is available in a small footprint of 10x10mm, 180 CTBGA RoHS-compliant package.

Key Features

• Embedded 32-Bit RISC Controller
  • Embedded 32-Bit RISC Controller
  • ARM922TDMI RISC CPU
  • 2.5Mbit on-chip RAM
  • 1Mbit on chip ROM
  • Clock speed max. 250MHz (200MIPS)
  • Standard JTAG interface
  • USB 2.0 HS & OTG Interface
• USB 2.0 HS & OTG Interface
  • Up to 480Mbit/s transfer speed
  • USB 2.0 HS/FS physical inlcuding OTG support
  • USB 2.0 HS/FS digital core including OTG host
  • Dedicated dual port buffer RAM
  • DMA bus master functionality
• IDE Host Controller
  • Supporting Ultra ATA 33/66/100/133 modes
  • Programmable IO and Multi-word DMA capability
  • Dedicated dual port buffer RAM
  • DMA bus master functionality
• External Memory Controller
  • Dynamic memory interface
  • Asynchronous static memory
  • DMA bus master functionality
• DMA Controller
  • Single Master DMA controller
  • 2 DMA channels possible at the same time
  • 16 DMA requests supported
• Interrupt Controller
  • Support for 32 standard interrupts
  • Support for 16 vectored IRQ interrupts
• Audio Subsystem Interface
  • Dedicated 2 wire serial control master
  • I2S input and output with dual port buffer RAM
• Nand Flash Interface
  • 8 and 16bit flash support
  • 3, 4 & 5 byte address support
  • hardware ECC
• MMC/SD Interface
  • MMC/SD Card host for multiple card support
  • 4 data line support for SD cards
• MS / MS Pro Interface
  • Dedicated dual port buffer RAM
• Display Interface
  • Serial and parallel controller supported
  • On chip hardware acceleration
• Synchronous Serial Interface
  • Master and slave operation
  • 8 and 16 bit support
  • Several protocol standards supported
• I2S Interface
  • Input multiplexed with audio subsystem
  • selectable SPDIF input conversion
  • Dedicated dual port buffer RAM
• 2 Wire Serial Control Interface
  • Master and slave operation
  • Standard and fast mode support
• General Purpose IO Interface
  • 4x 8-bit ports

Applications

• Portable Patient Monitor(Medical devices)
• Learning Toys
• Language translators
• Enhanced Voice recorders
• Wearables
• Personal Museum Guide
• GPS Data Loggers
• Broadband Internet Gadgets
• Point-of-sales(POS) equipment
• USB Transport Controller
• WiFi-to-USB Adapter
• Portable Navigation Device
• Bluetooth Headsets / Car Kits / Photo viewers
• Portable Digital Media Player
• PDA / Smartphone

Block diagram for AS3524 Analog Integrated Microcontroller IC