AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 37

• Manufacturer Part Number: AT91R40807-33AI
• Description: IC ARM7 MCU 176 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91R40807-33AI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

1354D–ATARM–08/02
Figures 26 through 32 show the timing cycles and wait states for read and write access
to the various AT91X40 Series external memory devices. The configurations described
are shown in the following table:
Table 5. Memory Access Waveforms
Figure Number
26
27
28
29
30
31
32
Number of Wait States
0
1
1
0
1
1
0
Bus Width
16
16
16
16
8
8
8
AT91X40 Series
Size of Data Transfer
Half-word
Half-word
Word
Word
Word
Byte
Byte
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