AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 44

• 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 32. 0 Wait States, 16-bit Bus Width, Byte Transfer
44
·
·
·
Standard Protocol
READ ACCESS
Early Protocol
·
Byte Write Option
WRITE ACCESS
Byte Select Option
AT91X40 Series
Internal Address
Internal Bus
D0 - D15
D0 - D15
D0 - D15
A1 - A23
NWR0
NWR1
NWE
MCK
NCS
NLB
NRD
NUB
NRD
ADDR X X X 0
ADDR X X X 0
B
XB
X B
1
B
1
1
X X X B
1
1
ADDR X X X 0
ADDR X X X 1
B
B
2
2
B
B
X
2
2
X
X X B
2
1354D–ATARM–08/02
X