AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 38

• 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: -

Figure 26. 0 Wait States, 16-bit Bus Width, Word Transfer
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·
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Standard Protocol
Early Protocol
Byte Write/
Byte Select Option
READ ACCESS
WRITE ACCESS
AT91X40 Series
Internal Bus
D0 - D15
D0 - D15
D0 - D15
A1 - A23
NWE
MCK
NRD
NRD
NCS
NUB
NLB
ADDR
B
2
B
1
B
2
B
B
2
1
B
1
X X B
2
B
1
ADDR+1
B
B
4
4
B
B
3
3
B
4
B
B
3
4
B
3
B
2
B
1
1354D–ATARM–08/02