Rainbow Electronics AT91CAP9S250A - Manual (Page 968)

968
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
47.10 Timings
47.10.1 Corner Definition
Timings in MAX corner always result from the extraction and comparison of timings in MAX and MIN corners.
Timings in STH corner always result from the extraction and comparision of timings in STH and MIN corners.
47.10.2 Processor Clock
47.10.3 Maximum Speed of the I/Os
Criteria used to define the maximum frequency of the I/Os:
• output duty cycle (40%-60%)
• minimum output swing: 100mV to VDDIO - 100mV
• Addition of rising and falling time inferior to 75% of the period
Notes: 1. Pin Group x = To Be Defined for each product
2. 3.3V domain: V
VDDIOP
from 3.0V to 3.6V, maximum external capacitor = 40pF
3. 1.8V domain: V
VDDIOP
from 1.65V to 1.95V, maximum external capacitor = 20pF
Table 47-18. Corner Definition
Corner Process
Temp
(External ; Junction) VDDCORE: 1.2V VDDIO: 1.8V VDDIO: 3.3V
MAX Slow 85°C ; 100°C 1.10V 1.65V 3.0V
STH Slow 85°C; 100°C 1.2V 1.8V 3.3V
MIN Fast -40C; -40C 1.32V 1.95V 3.6V
Table 47-19. Processor Clock Waveform Parameters
Symbol Parameter Conditions Min Max Units
1/(t
CPPCK
) Processor Clock Frequency Corner MAX 200 MHz
1/(t
CPPCK
) Processor Clock Frequency Corner STH TBD MHz
Table 47-20.
Symbol Parameter Conditions Min Max Units
FreqMax Pin Group x (1) frequency
3.3V domain (2) TBD MHz
1.8V domain (3) TBD MHz
PulseminH Pin Group (1) High Level Pulse Width
3.3V domain (2) TBD ns
1.8V domain (3) TBD ns
PulseminL Pin Group x (1) Low Level Pulse Width
3.3V domain (2) TBD ns
1.8V domain (3) TBD ns