參數(shù)資料
型號: MCF52277CVM166
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 166.67 MHz, RISC PROCESSOR, PBGA196
封裝: 15 X 15 MM, PLASTIC, ROHS COMPLIANT, MAPBGA-196
文件頁數(shù): 9/42頁
文件大小: 1632K
代理商: MCF52277CVM166
Electrical Characteristics
MCF5227x ColdFire Microprocessor Data Sheet, Rev. 4
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
17
5.5
Oscillator and PLL Electrical Characteristics
SDRAM and FlexBus Output High Voltage
Mobile DDR/Bus Input High Voltage (nominal 1.8V)
DDR/Bus Pad Supply Voltage (nominal 2.5V)
SDR/Bus Pad Supply Voltage (nominal 3.3V)
IOH = –5.0 mA for all modes
SDVOH
1.4
2.1
2.4
V
SDRAM and FlexBus Output Low Voltage
Mobile DDR/Bus Input High Voltage (nominal 1.8V)
DDR/Bus Pad Supply Voltage (nominal 2.5V)
SDR/Bus Pad Supply Voltage (nominal 3.3V)
IOL = 5.0 mA for all modes
SDVOL
0.3
0.5
V
Input Leakage Current
Vin = VDD or VSS, Input-only pins
Iin
–1.0
1.0
μA
Weak Internal Pull-Up Device Current, tested at VIL Max.
1
IAPU
–10
–130
μA
Input Capacitance 2
All input-only pins
All input/output (three-state) pins
Cin
7
pF
1 Refer to the signals section for pins having weak internal pull-up devices.
2 This parameter is characterized before qualification rather than 100% tested.
Table 9. PLL Electrical Characteristics
Num
Characteristic
Symbol
Min
Max
Unit
1
PLL Reference Frequency Range
Crystal reference
External reference
fref_crystal
fref_ext
16
66.67
MHz
2
Core/system frequency
CLKOUT Frequency
fsys
fsys/2
TBD
166.67
83.33
MHz
3
Crystal Start-up Time1,2
tcst
—10
ms
4
EXTAL Input High Voltage
Crystal Mode3
All other modes (External, Limp)
VIHEXT
VXTAL + 0.4
EVDD/2 + 0.4
V
5
EXTAL Input Low Voltage
Crystal Mode3
All other modes (External, Limp)
VILEXT
VXTAL – 0.4
EVDD/2 – 0.4
V
7
PLL Lock Time 1,4
tlpll
50000
CLKIN
8
Duty cycle of reference1
tdc
40
60
%
9
XTAL Current
IXTAL
13
mA
10
Total on-chip stray capacitance on XTAL
CS_XTAL
1.5
pF
11
Total on-chip stray capacitance on EXTAL
CS_EXTAL
1.5
pF
12
Crystal capacitive load
CL
See crystal spec
Table 8. DC Electrical Specifications (continued)
Characteristic
Symbol
Min
Max
Unit
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