AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 14

• 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 5. EBI Signals Relative to MCKI
Notes:
14
NWR (No Wait States)
1. Early Read Protocol.
2. Standard Read Protocol.
NWR (Wait States)
AT91R40807
D0 - D15 to Write
D0 - D15 Read
NUB/NLB/A0
A1 - A23
NWAIT
NRD
NRD
MCKI
NCS
CS
(1)
(2)
EBI
EBI
EBI
4
21
EBI
3
1
/EBI
EBI
2
5
EBI
EBI
11
EBI
EBI
EBI
EBI
31
33
6
22
7
EBI
EBI
EBI
EBI
8
EBI
EBI
EBI
25
19
34
23
9
16
EBI
No Wait
EBI
EBI
24
26
4
EBI
EBI
EBI
20
17
EBI
EBI
18
EBI
27-30
12-15
EBI
32
10
Wait
EBI
18
1367C–01/02