AT91M43300-25CI Atmel, AT91M43300-25CI Datasheet - Page 12

• Manufacturer Part Number: AT91M43300-25CI
• Description: IC ARM7 MCU 144 BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M43300-25CI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: WDT
• Number Of I /o: 58
• Program Memory Type: ROMless
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LFBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Timer Counter Signals
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
there are the following delays relative to MCKI waveforms.
Table 15. Timer Outputs
The inputs can be used synchronously or asynchronously (in relation to MCKI).
For synchronous Timer inputs, certain setup/hold constraints must be met. These constraints are shown in the Table 16
and are represented in Figure 6.
For asynchronous inputs, a minimum pulse-width and a minimum input period are necessary as shown in Tables 17 and 18
and as represented in Figure 6.
Table 16. Synchronous Timer Inputs
Table 17. Asynchronous Timer Input Minimum Pulse-width
Table 18. Asynchronous Timer Input Minimum Input Period
12
Symbol
TC
TC
TC
TC
Symbol
TC
TC
TC
TC
Symbol
TC
Symbol
TC
1
2
3
4
5
6
7
8
9
10
AT91M63200/M43300
Type of Input
Synchronous
Synchronous
Synchronous
Synchronous
CP
Type of Inputs
Asynchronous
Type of Inputs
Asynchronous
Parameter
MCKI Rising to TIOA Rising
MCKI Rising to TIOA Falling
MCKI Rising to TIOB Rising
MCKI Rising to TIOB Falling
) in Waveform Event Detection mode and 4(t
Parameter
TIOA/TIOB Rising Relative to MCKI Rising
TIOA/TIOB Falling Relative to MCKI
Rising
TCLK Rising Relative to MCKI Rising
TCLK Falling Relative to MCKI Rising
TCLK/TIOA/TIOB Minimum Pulse-width
Parameter
TCLK/TIOA/TIOB Minimum Input Period
Parameter
CP
) in Waveform Total-count Detection mode. In addition
Core at
TBD
TBD
TBD
TBD
2V
Core at 2V
TBD
TBD
TBD
TBD
Setup
Core at
Maximum
3.3V
2
2
2
2
Input Period
Pulse-width
Core at 3.3V
3(t
5(t
Core at
TBD
TBD
TBD
TBD
CP
CP
2V
22
22
22
22
/2)
/2)
Hold
Core at
3.3V
5
5
5
5
Units
ns
Units
Units
Units
ns
ns
ns