AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 22

• 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 8. Memory Connections for Eight External Devices
Note:
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For eight external devices, the maximum address space per device is 1M byte.
AT91X40 Series
EBI
NCS0 - NCS3
CS4 - CS7
D0 - D15
A0 - A19
NWRx
NRD
8 or 16
NCS0
NCS1
NCS2
D0 - D15 or D0 - D7
Memory Enable
Output Enable
Write Enable
A0 - A19
NCS3
Memory Enable
CS4
Memory Enable
CS5
Memory Enable
CS6
Memory Enable
CS7
Memory Enable
Memory Enable
Memory Enable
1354D–ATARM–08/02