參數(shù)資料
型號: MCC5E0RX266WB0B
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 266 MHz, RISC PROCESSOR, CBGA840
封裝: 31 X 31 MM, 3.55 MM HEIGHT, 1 MM PITCH, CERAMIC, FCBGA-840
文件頁數(shù): 117/120頁
文件大小: 1711K
代理商: MCC5E0RX266WB0B
96
CHAPTER 3: ELECTRICAL SPECIFICATIONS
C5ENPB0-DS REV 05
MOTOROLA GENERAL BUSINESS INFORMATION
BMU Timing
Specifications
The BMU timing specifications are shown in Figure 24 and described in Table 53.
The BMU synchronous DRAM interface is PC100-compliant and designed to work with
industry standard SDRAM components with 12 or fewer address lines. The information
below is intended to provide the output, setup, and hold data required to design this
interface without duplicating the transaction waveform diagrams in SDRAM data sheets.
Figure 24 BMU Timing Diagram
MDCLK
Cycle 1
Cycle 2
Cycle 3
Cycle 4
Cycle 5
M_ctl
MAn
MDn
(output)
MDn
(input)
Tmc
Tmdo
Tmco
Tmao
Tmdv
Tmds
Tmdz
Tmdh
Table 53 BMU Timing Description
SYMBOL
PARAMETER
MIN
TYP
MAX
UNIT
Tmc
BMU Cycle Time
7.5
ns
Tmco
BMU Ctrl Output
0.8
3.5
ns
Tmao
BMU Addr Output
0.8
3.7
ns
Tmds
BMU Data Setup
0.5
ns
Tmdh
BMU Data Hold
1.1
ns
Tmdo
BMU Data Output
0.8
4.4
ns
Tmdz
BMU Data Clk to Tri*
* Not fully tested, values based on design/characterization.
0.8
4.4
ns
Tmdv
BMU Data Clk to Driven*
0.8
4.4
ns
Tr, Tf
MDCLK Rise, Fall
2.0
Measured 0.8V to 2.0V.
ns
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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