參數(shù)資料
型號： MCF54417CMJ250
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： MICROPROCESSOR, PBGA256
封裝： 12 X 12 MM, ROHS COMPLAINT, MAPBGA-256
文件頁數(shù)： 19/60頁
文件大?。?/td> 1107K
代理商： MCF54417CMJ250
MCF5441x ColdFire Microprocessor Data Sheet, Rev. 6
Preliminary—Subject to Change Without Notice
Electrical characteristics
Freescale Semiconductor
26
4.8
Oscillator and PLL electrical characteristics
Reference Figure 9 for crystal circuits.
Table 14. PLL electrical characteristics
Num
Characteristic
Symbol
Min
Max
Unit
1
PLL Reference Frequency Range1
Crystal reference
External reference
fref_crystal
fref_ext
141
501
501
1
These reference value ranges are for after a PLL predivider (PREDIV), which can be programmed to 1, 2, 4, 8, or 16.
The PREDIV value can be set while booting from serial flash. In parallel reset configuration, the PREDIV value is set to
one. In this mode, if the input frequency results in an out of range reference frequency, boot the processor in limp
mode, set the proper PREDIV and multiplier settings, and switch to PLL mode.
MHz
2
Core frequency
FB_CLK frequency2 (MISCCR2[FBHALF] = 0)
2
All internal registers retain data at 0 Hz.
fsys
fsys/2
120
60
250
100
MHz
3
VCO frequency
fvco
240
500
MHz
4
DCC frequency3
3 Required only for DDR2 memory.
fDCC
300
500
MHz
5
Crystal start-up time4, 5
4
This parameter is guaranteed by characterization before qualification rather than 100% tested.
5
Proper PC board layout procedures must be followed to achieve specifications.
tcst
—10
ms
6
EXTAL input high voltage
External and limp modes
VIHEXT
EVIH
EVDD
V
7
EXTAL input low voltage
External and limp modes
VILEXT
0EVIL
V
8PLL lock time 4, 6
6
This specification is the PLL lock time only and does not include oscillator start-up time.
tlpll
—50
ms
9
Duty cycle of reference 4
tdc
–45%
+45%
%
10
Crystal capacitive load
CL
—
From crystal
spec
pF
11
Feedback resistor
RF
10
—
M
12
Series resistor
RS
0
200
13
Discrete load capacitance for XTAL
CL_XTAL
—2
C
L –
CS_XTAL –
CPCB_XTAL
7
CPCB_EXTAL and CPCB_XTAL are the measured PCB stray capacitances on EXTAL and XTAL, respectively.
pF
14
Discrete load capacitance for EXTAL
CL_EXTAL
—2
C
L –
CS_EXTAL –
CPCB_EXTAL
pF
15
FB_CLK period jitter, 4, 5, 7, 8, Measured at fSYS Max
Peak-to-peak jitter (clock edge to clock edge)
Long term jitter
8
Jitter is the average deviation from the programmed frequency measured over the specified interval at maximum fsys.
Measurements are made with the device powered by filtered supplies and clocked by a stable external clock signal.
Noise injected into the PLL circuitry via PLL VDD, EVDD, and VSS and variation in crystal oscillator frequency increase
the Cjitter percentage for a given interval.
Cjitter
—
10
0.1
% fsys/3
相關(guān)PDF資料
PDF描述
MCF54418CMJ250 MICROPROCESSOR, PBGA256
MCF54415CMJ250 MICROPROCESSOR, PBGA256
MCIMX251AJM4A 32-BIT, 400 MHz, MICROPROCESSOR, PBGA400
MCIMX255AJM4 32-BIT, 400 MHz, MICROPROCESSOR, PBGA400
MCIMX251AVM4 32-BIT, 400 MHz, MICROPROCESSOR, PBGA400
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCF54417CMJ250 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MPU COLDFIRE 250MHZ 256-MA
MCF54418CMJ250 功能描述:微處理器 - MPU COLDFIREV4M CORE C90LP RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MCF54418CMJ250 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MPU COLDFIRE 250MHZ 256-MA
MCF5441X 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MCF5441x ColdFire Microprocessor Data Sheet
MCF54450 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ColdFire㈢ Microprocessor
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*