MCF5227x ColdFire Microprocessor Data Sheet, Rev. 8 F" />
參數(shù)資料
型號: PCF52274CLU120
廠商: Freescale Semiconductor
文件頁數(shù): 11/46頁
文件大?。?/td> 0K
描述: MCU 32-BIT W/LCD TOUCH 176-LQFP
標(biāo)準(zhǔn)包裝: 40
系列: MCF5227x
核心處理器: Coldfire V2
芯體尺寸: 32-位
速度: 120MHz
連通性: CAN,EBI/EMI,I²C,SPI,SSI,UART/USART,USB OTG
外圍設(shè)備: DMA,LCD,PWM,WDT
輸入/輸出數(shù): 47
程序存儲器類型: ROMless
RAM 容量: 128K x 8
電壓 - 電源 (Vcc/Vdd): 1.4 V ~ 1.6 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 176-LQFP
包裝: 托盤
Electrical Characteristics
MCF5227x ColdFire Microprocessor Data Sheet, Rev. 8
Freescale Semiconductor
19
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 11. PLL Electrical Characteristics
Num
Characteristic
Symbol
Min
Max
Unit
1
PLL Reference Frequency Range
Crystal reference
External reference
fref_crystal
fref_ext
16
251
66.671
MHz
2
Core/system frequency
CLKOUT Frequency
fsys
fsys/2
512 Hz2
256 Hz2
166.67
83.33
MHz
3
Crystal Start-up Time3,4
tcst
—10
ms
4
EXTAL Input High Voltage
Crystal Mode5
All other modes (External, Limp)
VIHEXT
VXTAL + 0.4
EVDD/2 + 0.4
V
5
EXTAL Input Low Voltage
Crystal Mode5
All other modes (External, Limp)
VILEXT
VXTAL – 0.4
EVDD/2 – 0.4
V
7
PLL Lock Time 3,6
tlpll
50000
CLKIN
8
Duty cycle of reference3
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 10. DC Electrical Specifications (continued)
Characteristic
Symbol
Min
Max
Unit
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