AT91M55800A-33CJ Atmel, AT91M55800A-33CJ Datasheet - Page 248

• Manufacturer Part Number: AT91M55800A-33CJ
• Description: IC ARM MCU 16BIT 176BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M55800A-33CJ

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 58
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LFBGA
• Processor Series: AT91Mx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: EBI, SPI, USART
• Maximum Clock Frequency: 33 MHz
• Number Of Programmable I/os: 58
• Number Of Timers: 10 bit
• Operating Supply Voltage: 3 V to 3.6 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: AT91EB55
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• On-chip Dac: 8 bit, 2 Channel
• Cpu Family: AT91
• Device Core: ARM7TDMI
• Device Core Size: 32b
• Frequency (max): 33MHz
• Program Memory Size: Not Required
• Total Internal Ram Size: 8KB
• # I/os (max): 58
• Number Of Timers - General Purpose: 6
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 176
• Package Type: BGA
• For Use With: AT91EB55 - KIT EVAL FOR ARM AT91M55800A
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 27-2.
Note:
Figure 27-3.
Note:
248
MCKI
NWAIT
NCS
MCKI
NWAIT
NRD
1. These numbers refer to the standard access cycles.
1. These numbers refer to the standard access cycles.
AT91M5880A
Number of Standard Wait States is Two
Number of Standard Wait States is One
1 (1)
1
(1)
Standard Access Length with Two Wait States
If the first two conditions are not met during a 32-bit read access, the first 16-bit data is read at
the end of the standard 16-bit read access. In the following example, the number of standard
waits is one. NWAIT assertions do affect both NRD pulse lengths, but first data sampling is not
delayed. The second data sampling is correct.
32-bit Access = Two 16-bit Accesses
Each Access Length = One Wait State + Assertion for One More Cycle
EBI
5
2 (1)
First Data Sampling
EBI
(Erroneous)
5
2
(1)
2 (1)
1 (1)
2 (1)
2 (1)
3
1745F–ATARM–06-Sep-07
(1)
Second Data
Sampling
(Correct)