参数资料
型号: STR712FZH1TR
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, PBGA144
封装: 10 X 10 MM, 1.70 MM HEIGHT, LFBGA-144
文件页数: 36/78页
文件大小: 2018K
代理商: STR712FZH1TR
STR71xF
Electrical parameters
41/78
4.3.2
Clock and timing characteristics
External clock sources
Subject to general operating conditions for V33, and TA.
Notes:
1.
Data based on design simulation and/or technology characteristics, not tested in production.
Figure 14.
CK external clock source
Table 18.
CK external clock characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fCK
External clock source
frequency
0
16.5
MHz
VCKH
CK input pin high level
voltage
0.7xV33
V33
V
VCKL
CK input pin low level
voltage
VSS
0.3xV33
tw(CK)
CK high or low time 1)
25
ns
tr(CK)
tf(CK)
CK rise or fall time 1)
20
CIN(CK)
CK input capacitance1)
5pF
DuCy(XT1)
Duty cycle
40
60
%
IL
CK Input leakage current
VSS≤VIN≤V33
±1
A
CK
fCLK
EXTERNAL
STR710
CLOCK SOURCE
VCKL
VCKH
tr(CK)
tf(CK)
tw(CKH)
tw(CKL)
IL
90%
10%
TCK
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