AT91SAM9G45-CU Electronic IC Chip AT91 ARM Thumb based Microcontrollers

AT91 ARM Thumb-based Microcontrollers

AT91SAM9G45

Features

• 400 MHz ARM926EJ-S™ ARM® Thumb® Processor

  – 32 KBytes Data Cache, 32 KBytes Instruction Cache, MMU

• Memories

  – DDR2 Controller 4-bank DDR2/LPDDR, SDRAM/LPSDR

  – External Bus Interface supporting 4-bank DDR2/LPDDR, SDRAM/LPSDR, Static Memories,

     CompactFlash, SLC NAND Flash with ECC

  – One 64-KByte internal SRAM, single-cycle access at system speed or processor speed through

     TCM interface

  – One 64-KByte internal ROM, embedding bootstrap routine

• Peripherals

  – LCD Controller supporting STN and TFT displays up to 1280*860

  – ITU-R BT. 601/656 Image Sensor Interface

  – USB Device High Speed, USB Host High Speed and USB Host Full Speed with OnChip Transceiver

  – 10/100 Mbps Ethernet MAC Controller

  – Two High Speed Memory Card Hosts (SDIO, SDCard, MMC)

  – AC'97 controller

  – Two Master/Slave Serial Peripheral Interfaces

  – Two Three-channel 32-bit Timer/Counters

  – Two Synchronous Serial Controllers (I2S mode)

  – Four-channel 16-bit PWM Controller

  – Two Two-wire Interfaces

  – Four USARTs with ISO7816, IrDA, Manchester and SPI modes

  – 8-channel 10-bit ADC with 4-wire Touch Screen support

• System

  – 133 MHz twelve 32-bit layer AHB Bus Matrix

  – 37 DMA Channels

  – Boot from NAND Flash, SDCard, DataFlash® or serial DataFlash

  – Reset Controller with on-chip Power-on Reset

  – Selectable 32768 Hz Low-power and 12 MHz Crystal Oscillators

  – Internal Low-power 32 kHz RC Oscillator

  – One PLL for the system and one 480 MHz PLL optimized for USB High Speed

  – Two Programmable External Clock Signals

  – Advanced Interrupt Controller and Debug Unit

  – Periodic Interval Timer, Watchdog Timer, Real Time Timer and Real Time Clock

• I/O

  – Five 32-bit Parallel Input/Output Controllers

  – 160 Programmable I/O Lines Multiplexed with up to Two Peripheral I/Os with Schmitt trigger input

• Package

  – 324-ball TFBGA, pitch 0.8 mm

Description

The ARM926EJ-S based AT91SAM9G45 features the frequently demanded combination of user interface functionality and high data rate connectivity, including LCD Controller, resistive touchscreen, camera interface, audio, Ethernet 10/100 and high speed USB and SDIO. With the processor running at 400MHz and multiple 100+ Mbps data rate peripherals, the AT91SAM9G45 has the performance and bandwidth to the network or local storage media to provide an adequate user experience.

The AT91SAM9G45 supports the latest generation of DDR2 and NAND Flash memory interfaces for program and data storage. An internal 133 MHz multi-layer bus architecture associated with 37 DMA channels, a dual external bus interface and distributed memory including a 64- KByte SRAM which can be configured as a tightly coupled memory (TCM) sustains the high bandwidth required by the processor and the high speed peripherals.

The I/Os support 1.8V or 3.3V operation, which are independently configurable for the memory interface and peripheral I/Os. This feature completely eliminates the need for any external level shifters. In addition it supports 0.8 ball pitch package for low cost PCB manufacturing.

The AT91SAM9G45 power management controller features efficient clock gating and a battery backup section minimizing power consumption in active and standby modes.

Absolute Maximum Ratings*

Operating Temperature (Industrial)................-40° C to + 85° C

Junction Temperature-..................................................125°C

Storage Temperature...................................-60°C to + 150°C

Voltage on Input Pins with Respect to Ground......-0.3V to VDDIO+0.3V(+ 4V max)

Maximum Operating Voltage

    (VDDCORE, VDDPLLA, VDDUTMIC, VDDPLLUTMI)....1.2V

    (VDDIOM0).....................................................................2.0V

    (VDDIOM1, VDDIOPx, VDDUTMII, VDDOSC,

    VDDANA and VDDBU)....................................................4.0V

Total DC Output Current on all I/O lines ..................... 350 mA

*NOTICE: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

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