ATSAM3U4EA-CU Atmel, ATSAM3U4EA-CU Datasheet - Page 353
![IC MCU 32BIT 256KB FLSH 144LFBGA](/photos/12/13/121356/144-lfbga_sml.jpg)
ATSAM3U4EA-CU
Manufacturer Part Number
ATSAM3U4EA-CU
Description
IC MCU 32BIT 256KB FLSH 144LFBGA
Manufacturer
Atmel
Series
SAM3Ur
Specifications of ATSAM3U4EA-CU
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
96MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
52K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b, 8x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LFBGA
Processor Series
ATSAM3x
Core
ARM Cortex M3
Data Bus Width
32 bit
Data Ram Size
52 KB
Interface Type
4xUSART, 2xTWI, 5xSPI, Bus
Maximum Clock Frequency
96 MHz
Number Of Programmable I/os
96
Number Of Timers
8
Operating Supply Voltage
1.62 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-CM3, AT91SAM3U-EK, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
ATSAM3U-EK
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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25. Static Memory Controller (SMC)
25.1
25.2
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
Description
Embedded Characteristics
The External Bus Interface is designed to ensure the successful data transfer between several
external devices and the Cortex-M3 based device. The External Bus Interface of the SAM3U
consists of a Static Memory Controller (SMC).
This SMC is capable of handling several types of external memory and peripheral devices, such
as SRAM, PSRAM, PROM, EPROM, EEPROM, LCD Module, NOR Flash and NAND Flash.
The SMC generates the signals that control the access to external memory devices or peripheral
devices. It has 4 Chip Selects and a 24-bit address bus. The 16-bit data bus can be configured
to interface with 8- or 16-bit external devices. Separate read and write control signals allow for
direct memory and peripheral interfacing. Read and write signal waveforms are fully
parametrizable.
The SMC can manage wait requests from external devices to extend the current access. The
SMC is provided with an automatic slow clock mode. In slow clock mode, it switches from user-
programmed waveforms to slow-rate specific waveforms on read and write signals.
The SMC embeds a NAND Flash Controller (NFC). The NFC can handle automatic transfers,
sending the commands and address cycles to the NAND Flash and transferring the contents of
the page (for read and write) to the NFC SRAM. It minimizes the CPU overhead.
The SMC includes programmable hardware error correcting code with one bit error correction
capability and supports two bits error detection. In order to improve overall system performance
the DATA phase of the transfer can be DMA assisted.
The External Data Bus can be scrambled/unscrambled by means of user keys.
• 16-Mbyte Address Space per Chip Select
• 8- or 16-bit Data Bus
• Word, Halfword, Byte Transfers
• Byte Write or Byte Select Lines
• Programmable Setup, Pulse and Hold Time for Read Signals per Chip Select
• Programmable Setup, Pulse and Hold Time for Write Signals per Chip Select
• Programmable Data Float Time per Chip Select
• External Data Bus Scrambling/Unscrambling Function
• External Wait Request
• Automatic Switch to Slow Clock Mode
• NAND Flash Controller Supporting NAND Flash with Multiplexed Data/Address Buses
• Supports SLC NAND Flash Technology
• Hardware Configurable Number of Chip Selects from 1 to 4
• Programmable Timing on a per Chip Select Basis
• AHB Slave Interface
• Atmel APB Configuration Interface
• Programmable Flash Data Width 8 Bits or 16 Bits
SAM3U Series
SAM3U Series
353
353
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