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C5EC3EARCH-RM/D Folha de dados(PDF) 94 Page - Freescale Semiconductor, Inc

Nome de Peças C5EC3EARCH-RM/D
Descrição Electrónicos  C-3e NETWORK PROCESSOR SILICON REVISION A1
PDF  114 Pages
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Fabricante Electrônico  FREESCALE [Freescale Semiconductor, Inc]
Página de início  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

C5EC3EARCH-RM/D Folha de dados(HTML) 94 Page - Freescale Semiconductor, Inc

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94
CHAPTER 3: ELECTRICAL SPECIFICATIONS
C3EN
BMU Timing
Specifications
The BMU timing specifications are shown in Figure 24 and described in Table 49.
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 49 BMU Timing Description
SYMBOL
PARAMETER
MIN
TYP
MAX
UNIT
Tmc
BMU Cycle Time
8.0
ns
Tmco
BMU Ctrl Output
0.8
3.9
ns
Tmao
BMU Addr Output
0.8
3.9
ns
Tmds
BMU Data Setup
0.5
ns
Tmdh
BMU Data Hold
1.1
ns
Tmdo
BMU Data Output
0.8
4.5
ns
Tmdz
BMU Data Clk to Tri*
* Not fully tested, values based on design/characterization.
0.8
4.5
ns
Tmdv
BMU Data Clk to Driven*
0.8
4.5
ns
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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