AT91M40800-33AI Atmel, AT91M40800-33AI Datasheet - Page 16

• 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: -

Timer/Counter Signals
16
AT91M40800 Electrical Characteristics
Due to internal synchronization of input signals, there is a delay between an input event
and a corresponding output event. This delay is 3(t
mode and 4(t
minimum pulse width and minimum input period shown in Table 16 and Table 17, and
as represented in Figure 7.
Table 16. Timer Input Minimum Pulse Width
Table 17. Timer Input Minimum Period
Figure 7. Timer Input
TIOA/
TIOB/
TCLK
MCKI
Symbol
TC
Symbol
TC
1
2
CP
Parameter
TCLK/TIOA/TIOB Minimum Pulse Width
Parameter
TCLK/TIOA/TIOB Minimum Input Period
) in Waveform Total-count Detection mode. The inputs have to meet the
3(t
CP
TC
/2)
1
TC
2
CP
) in Waveform Event Detection
Min Pulse Width
Min Input Period
3(t
5(t
3(t
CP
CP
CP
/2)
/2)
/2)
1393C–ATARM–19-Nov-04
Units
Units
ns
ns