AT91M40800-33AU Atmel, AT91M40800-33AU Datasheet - Page 26

• Manufacturer Part Number: AT91M40800-33AU
• Description: IC ARM7 MCU 100 LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M40800-33AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Package: 100TQFP
• Device Core: ARM7TDMI
• Family Name: 91M
• Maximum Speed: 33 MHz
• Operating Supply Voltage: 2.5|3.3 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 32
• Interface Type: EBI/USART
• Number Of Timers: 3
• Processor Series: AT91Mx
• Core: ARM7TDMI
• Data Ram Size: 8 KB
• Maximum Clock Frequency: 33 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
• Minimum Operating Temperature: - 40 C
• Eeprom Memory: 0 Bytes
• Input Output: 32
• Interface: EBI/EMI, UART/USART
• Ios: 32
• Memory Type: ROMless
• Number Of Bits: 32
• Package Type: 100-pin LQFP
• Programmable Memory: 0 Bytes
• Timers: 3-16-bit
• Voltage, Range: 1.8-3.6 V
• Cpu Family: 91M
• Device Core Size: 32b
• Frequency (max): 33MHz
• Program Memory Size: Not Required
• Total Internal Ram Size: 8KB
• # I/os (max): 32
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 1.8V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Boot on NCS0
26
AT91X40 Series
Depending on the device and the BMS pin level during the reset, the user can select
either an 8-bit or 16-bit external memory device connected on NCS0 as the Boot Mem-
ory. In this case, EBI_CSR0 (Chip Select Register 0) is reset at the following
configuration for chip select 0:
•
•
Byte access type and number of data float time are respectively set to Byte Write
Access and 0. With a non-volatile memory interface, any values can be programmed for
these parameters.
Before the remap command, the user can modify the chip select 0 configuration, pro-
gramming the EBI_CSR0 with exact boot memory characteristics. the base address
becomes effective after the remap command, but the new number of wait states can be
changed immediately. This is useful if a boot sequence needs to be faster.
8 wait states (WSE = 1, NWS = 7)
8-bit or 16-bit data bus width, depending on BMS
1354D–ATARM–08/02