AT91SAM9G20B-CFU Atmel, AT91SAM9G20B-CFU Datasheet - Page 22

IC MCU ARM9 247-LFBGA

AT91SAM9G20B-CFU

Manufacturer Part Number
AT91SAM9G20B-CFU
Description
IC MCU ARM9 247-LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet

Specifications of AT91SAM9G20B-CFU

Core Processor
ARM9
Core Size
16/32-Bit
Speed
400MHz
Connectivity
EBI/EMI, Ethernet, I²C, IrDA, ISI, MMC, SPI, SSC, UART/USART, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
64KB (64K x 8)
Program Memory Type
ROM
Ram Size
96K x 8
Voltage - Supply (vcc/vdd)
0.9 V ~ 1.1 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
247-TFBGA
Processor Series
AT91SAMx
Core
ARM926EJ-S
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
SPI, TWI, UART
Maximum Clock Frequency
400 MHz
Number Of Programmable I/os
96
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM9G20-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
Part Number:
AT91SAM9G20B-CFU
Manufacturer:
Atmel
Quantity:
10 000
8.2
8.2.1
8.2.2
8.2.3
22
External Memories
AT91SAM9G20 Summary
External Bus Interface
Static Memory Controller
SDRAM Controller
The external memories are accessed through the External Bus Interface. Each Chip Select line
has a 256-Mbyte memory area assigned.
Refer to the memory map in
• Integrates three External Memory Controllers
• Additional logic for NAND Flash
• Full 32-bit External Data Bus
• Up to 26-bit Address Bus (up to 64MBytes linear)
• Up to 8 chip selects, Configurable Assignment:
• 8-, 16- or 32-bit Data Bus
• Multiple Access Modes supported
• Multiple device adaptability
• Multiple Wait State Management
• Slow Clock mode supported
• Supported devices
• Numerous configurations supported
– Static Memory Controller
– SDRAM Controller
– ECC Controller
– Static Memory Controller on NCS0
– SDRAM Controller or Static Memory Controller on NCS1
– Static Memory Controller on NCS2
– Static Memory Controller on NCS3, Optional NAND Flash support
– Static Memory Controller on NCS4 - NCS5, Optional CompactFlash support
– Static Memory Controller on NCS6-NCS7
– Byte Write or Byte Select Lines
– Asynchronous read in Page Mode supported (4- up to 32-byte page size)
– Compliant with LCD Module
– Control signals programmable setup, pulse and hold time for each Memory Bank
– Programmable Wait State Generation
– External Wait Request
– Programmable Data Float Time
– Standard and Low-power SDRAM (Mobile SDRAM)
– 2K, 4K, 8K Row Address Memory Parts
– SDRAM with two or four Internal Banks
– SDRAM with 16- or 32-bit Datapath
Figure 8-1 on page
19.
6384DS–ATARM–13-Jan-10

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