參數(shù)資料
型號(hào)： MCF5327CVM240
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 240 MHz, RISC PROCESSOR, PBGA196
封裝： 15 X 15 MM, ROHS COMPLIANT, MAPBGA-196
文件頁(yè)數(shù)： 16/50頁(yè)
文件大?。?/td> 1114K
代理商： MCF5327CVM240
Electrical Characteristics
MCF532x ColdFire Microprocessor Data Sheet, Rev. 5
Freescale Semiconductor
23
Figure 8. FlexBus Write Timing
5.7
SDRAM Bus
The SDRAM controller supports accesses to main SDRAM memory from any internal master. It supports standard SDRAM or
double data rate (DDR) SDRAM, but it does not support both at the same time.
5.7.1
SDR SDRAM AC Timing Characteristics
The following timing numbers indicate when data is latched or driven onto the external bus, relative to the memory bus clock,
when operating in SDR mode on write cycles and relative to SD_DQS on read cycles. The device’s SDRAM controller is a
DDR controller that has an SDR mode. Because it is designed to support DDR, a DQS pulse must remain supplied to the device
for each data beat of an SDR read. The processor accomplishes this by asserting a signal named SD_SDR_DQS during read
cycles. Care must be taken during board design to adhere to the following guidelines and specs with regard to the
SD_SDR_DQS signal and its usage.
Table 10. SDR Timing Specifications
Symbol
Characteristic
Symbol
Min
Max
Unit
Frequency of Operation1
60
80
MHz
SD1
Clock Period2
tSDCK
12.5
16.67
ns
SD3
Pulse Width High3
tSDCKH
0.45
0.55
SD_CLK
SD4
Pulse Width Low4
tSDCKH
0.45
0.55
SD_CLK
SD5
Address, SD_CKE, SD_CAS, SD_RAS, SD_WE, SD_BA,
SD_CS[1:0] - Output Valid
tSDCHACV
—
0.5
× SD_CLK
+1.0
ns
SD6
Address, SD_CKE, SD_CAS, SD_RAS, SD_WE, SD_BA,
SD_CS[1:0] - Output Hold
tSDCHACI
2.0
—
ns
SD7
SD_SDR_DQS Output Valid5
tDQSOV
—
Self timed
ns
SD8
SD_DQS[3:0] input setup relative to SD_CLK6
tDQVSDCH
0.25
×
SD_CLK
0.40
× SD_CLK
ns
FB_CLK
FB_R/W
FB_TS
FB_OE
S0
S2
S3
DATA
S1
ADDR[31:X]
FB_A[23:0]
FB_D[31:X]
ADDR[23:0]
FB_CSn, FB_BE/BWEn
FB_TA
FB3
FB1
FB2
FB7
FB6
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
MCF5327CVM240,
MCF53281CVM240,
MCF5328CVM240,
MCF5329CVM240
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCF5327CVM240J 制造商:Freescale Semiconductor 功能描述:MPC5XXX RISC 32-BIT CMOS 240MHZ 196-PIN MA-BGA TRAY - Trays
MCF5328 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ColdFire㈢ Microprocessor
MCF53281 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ColdFire㈢ Microprocessor
MCF53281CVM240 功能描述:微處理器 - MPU MCF5329 DRAGONFIRE 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(chǔ)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
MCF53281CVM240J 功能描述:32位微控制器 - MCU DRAGONFIRE RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT
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