AT91M40800-33AI Atmel, AT91M40800-33AI Datasheet - Page 18

• Manufacturer Part Number: AT91M40800-33AI
• Description: IC ARM7 MCU 100 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M40800-33AI

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

Advanced Interrupt Controller
Signals
Parallel I/O Signals
18
AT91M40800 Electrical Characteristics
Inputs have to meet the minimum pulse width and minimum input period shown in Table
19 and Table 20 and represented in Figure 9.
Table 19. AIC Input Minimum Pulse Width
Table 20. AIC Input Minimum Period
Figure 9. AIC Signals
The inputs have to meet the minimum pulse width shown in Table 21 and represented in Fig-
ure 10.
Table 21. PIO Input Minimum Pulse Width
Figure 10. PIO Signal
Inputs
Symbol
AIC
Symbol
AIC
IRQ0/IRQ1/
Symbol
PIO
IRQ2/IRQ3
PIO
1
2
1
MCKI
Input
FIQ/
Parameter
PIO Input Minimum Pulse Width
Parameter
AIC Minimum Input Period
Parameter
FIQ/IRQ0/IRQ1/IRQ2/IRQ3 Minimum Pulse Width
AIC
1
PIO
1
AIC
2
Min Pulse Width
Min Pulse Width
Min Input Period
3(t
CP
3(t
5(t
/2)
1393C–ATARM–19-Nov-04
CP
CP
/2)
/2)
Units
Units
Units
ns
ns
ns