參數(shù)資料
型號(hào): MCF5235CVM100
廠商: FREESCALE SEMICONDUCTOR INC
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, 100 MHz, RISC PROCESSOR, PBGA256
封裝: ROHS COMPLIANT, MAPBGA-256
文件頁(yè)數(shù): 20/48頁(yè)
文件大?。?/td> 666K
代理商: MCF5235CVM100
Electrical Characteristics
MCF523x Integrated Microprocessor Hardware Specification, Rev. 4
Freescale Semiconductor
27
7.4
Oscillator and PLLMRFM Electrical Characteristics
Table 10. HiP7 PLLMRFM Electrical Specifications1
1
All values given are initial design targets and subject to change.
Num
Characteristic
Symbol
Min.
Value
Max.
Value
Unit
1
PLL Reference Frequency Range
Crystal reference
External reference
1:1 mode (NOTE: fsys/2 = 2 × fref_1:1)
fref_crystal
fref_ext
fref_1:1
8
24
25
75
MHz
2
Core frequency
CLKOUT Frequency 2
External reference
On-Chip PLL Frequency
2
All internal registers retain data at 0 Hz.
fsys
fsys/2
0
fref ÷ 32
150
75
MHz
3
Loss of Reference Frequency 3, 5
3
“Loss of Reference Frequency” is the reference frequency detected internally, which transitions the PLL
into self clocked mode.
fLOR
100
1000
kHz
4
Self Clocked Mode Frequency 4, 5
4
Self clocked mode frequency is the frequency that the PLL operates at when the reference frequency falls
below fLOR with default MFD/RFD settings.
fSCM
10.25
15.25
MHz
5
Crystal Start-up Time 5, 6
5
This parameter is guaranteed by characterization before qualification rather than 100% tested.
6
Proper PC board layout procedures must be followed to achieve specifications.
tcst
—10
ms
6
XTAL Load Capacitance5
530
pF
7
PLL Lock Time 5, 7,13
tlpll
—750
μs
8
Power-up To Lock Time 5, 6,8
With Crystal Reference (includes 5 time)
Without Crystal Reference9
tlplk
11
750
ms
μs
9
1:1 Mode Clock Skew (between CLKOUT
and EXTAL) 10
tskew
–1
1
ns
10
Duty Cycle of reference 5
tdc
40
60
%
11
Frequency un-LOCK Range
fUL
–3.8
4.1
% fsys/2
12
Frequency LOCK Range
fLCK
–1.7
2.0
% fsys/2
13
CLKOUT Period Jitter, 5, 6, 8,11, 12
Measured at fsys/2 Max
Peak-to-peak Jitter (Clock edge to clock
edge)
Long Term Jitter (Averaged over 2 ms
interval)
Cjitter
5.0
.01
% fsys/2
14
Frequency Modulation Range Limit13,14
(fsys/2 Max must not be exceeded)
Cmod
0.8
2.2
%fsys/2
15
ICO Frequency. fico = fref × 2 × (MFD+2)
15
fico
48
150
MHz
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MCF5235CVM150 制造商:Freescale Semiconductor 功能描述:Microprocessor IC
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