AT91R40807-33AU Atmel, AT91R40807-33AU Datasheet - Page 8

• Manufacturer Part Number: AT91R40807-33AU
• Description: IC ARM7 MCU 100TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91R40807-33AU

• 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: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Clock Waveforms
Table 7. Clock Waveform Parameters
Table 8. Clock Propagation Times
Figure 3. Clock Waveform
8
Symbol
1/(t
t
t
t
t
t
Symbol
t
t
CP
CH
CL
r
f
CDLH
CDHL
CP
)
MCKO
MCKI
AT91R40807
Parameter
Oscillator Frequency
Oscillator Period
High Half-period
Low Half-period
Rising Edge
Falling Edge
Parameter
Rising Edge Propagation Time
Falling Edge Propagation Time
t
CDLH
0.7 V
DD
0.5 V
t
CH
DD
0.3 V
t
CDHL
DD
t
CL
Conditions
Conditions
C
C
C
C
0.5 V
MCKO
MCKO
MCKO
MCKO
DD
= 0 pF
derating
= 0 pF
derating
t
r
t
CP
0.45 x t
0.45 x t
0.032
0.032
23.5
Min
Min
4.6
5.8
CP
CP
t
f
0.55 x t
0.55 x t
Max
42.6
TBD
TBD
Max
0.05
0.05
7.2
9.0
CP
CP
Units
Units
ns/pF
ns/pF
MHz
1367C–01/02
ns
ns
ns