参数资料
型号: STR715FRT3
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 66 MHz, RISC MICROCONTROLLER, PQFP64
封装: 10 X 10 MM, LQFP-64
文件页数: 39/78页
文件大小: 2018K
代理商: STR715FRT3
Electrical parameters
STR71xF
44/78
Figure 16.
RTC crystal oscillator and resonator
PLL electrical characteristics
V33 = 3.0 to 3.6V, V33IOPLL = 3.0 to 3.6V, TA = -40 / 85 °C unless otherwise specified.
CL
RT
C
X
T
I
RT
C
X
T
O
RS
RT
C
X
T
I
RT
C
X
T
O
DEVICE
Table 21.
PLL1 characteristics
Symbol
Parameter
Test conditions
Value
Unit
Min
Typ
Max
fPLLCLK1 PLL multiplier output clock
165
MHz
fPLL1
PLL input clock
FREF_RANGE = 0
1.5
3.0
MHz
FREF_RANGE = 1
MX[1:0]=’00’ or ‘01’
3.0
8.25
MHz
FREF_RANGE = 1
MX[1:0]=’10’ or ‘11’
3.0
6
MHz
PLL input clock duty cycle
25
75
%
fFREE1
PLL free running frequency
FREF_RANGE = 0
MX[1:0]=’01’ or ‘11’
125
kHz
FREF_RANGE = 0
MX[1:0]=’00’ or ‘10’
250
kHz
FREF_RANGE = 1
MX[1:0]=’01’ or ‘11’
250
kHz
FREF_RANGE = 1
MX[1:0]=’00’ or ‘10’
500
kHz
tLOCK1
PLL lock time
FREF_RANGE = 0
Stable Input Clock
Stable V33IOPLL, V18
300
s
FREF_RANGE = 1
Stable Input Clock
Stable V33IOPLL, V18
600
s
tJITTER1 PLL jitter (peak to peak)
tPLL = 4 MHz, MX[1:0]=’11’
Global Output division = 32
(Output Clock = 2 MHz)
0.7
2
ns
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