參數(shù)資料
型號: TMPR3927F
廠商: Toshiba Corporation
英文描述: 32 Bit TX39 Family System RISC Microprocessor(32位TX39系列精簡指令集系統(tǒng)計算機微處理器)
中文描述: 32位TX39家庭系統(tǒng)RISC微處理器(32位TX39系列精簡指令集系統(tǒng)計算機微處理器)
文件頁數(shù): 16/22頁
文件大?。?/td> 272K
代理商: TMPR3927F
TAEC_rev4_11-Jan-2000 16/22
TMPR3927F
TENTATIVE
6.4 Crystal Oscillator Characteristics
6.4.1
Recommended oscillator conditions
Parameter
Symbol
Recommended value
6.25~8.33
Unit
MHz
Crystal Oscillator frequency
fIN
ROUT
CIN,COUT
Output register
10
M
External condenser
12
pF
Clock generator
Rising time
Falling time
tr
tf
5(1)
5(1)
ns
ns
(1) For a reference. Ask clock generator manufacture.
6.4.2
Recommended input clock conditions (when 2-multiply)
Parameter
Symbol
fIN
Recommended Value
50 ~ 66.67
Unit
MHz
Input Clock Frequency
Note: When 2-multiply, the external clock should input to the XIN pin. Then the XOUT pin must be left open.
6.4.3
Electrical characteristics
(T
c
= 0
70
°
C, VDDS= 3.3V
±
0.3V, VDD2= 2.5V
±
0.2V, VSS = 0V)
Parameter
Symbol
tSTA
Condition
MIN.
-
TYP.
1
MAX
10
Unit
ms
Oscillation start time
f=6.25
8.75MHz
6.5 PLL Filter Circuit
The following filter circuit is recommended for the PLL filter using the pins LP (Filter0) and AGS
(Filter1).
TMPR3927F
XIN
XOUT
C
OUT
C
IN
X’tal
OUT
R
Filter0 Filter1
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