Samsung S3F401F - Manual (Page 273)

S3F401F_UM_REV1.00 ELECTRICAL DATA
13-3
Table 13-3. Timing Constants
(T
A
= −40°C to + 85°C, V
DD
= 3.3
± 0.3V)
Parameter Symbol Min Typ Max Unit
Input frequency for CPU MCLK 0
−
90 MHz
Input frequency for peripheral block PCLK 0
−
90
Flash frequency for access at 1-clock FCLK 0
−
45
Oscillator input frequency F
EXTCLK
4
−
8
Oscillator stabilization time T
ST
− −
10 ms
Oscillation stabilization time after reset T
STR
− 2 16 /F
EXTCLK
−
Oscillation stabilization time after stop release T
STS
−
(NOTE)
−
s
NOTE: The duration of the oscillation stabilization time when it is released by an interrupt is determined by the setting in the
basic timer control register, BTCON.
Table 13-4. PLL Timing Constants
(T
A
= −40°C to + 85°C, V
DD
= 3.3
± 0.3V)
Parameter Symbol Min Typ Max Unit
PLL Input Frequency F
IN
4
−
8 MHz
PLL Output Frequency F
PLLO
20
−
90
PLL Output Clock Duty Ratio T
OD
40 50 60 %
PLL Locking Time T
LOCK
− −
300 us
PLL Period Jitter (peak-to-peak) T
JP
− −
600 Ps