参数资料
型号: EP9301-IQ
厂商: Cirrus Logic, Inc.
英文描述: Entry-level ARM9 System-on-chip Processor
中文描述: 入门级ARM9的系统芯片处理器
文件页数: 14/41页
文件大小: 297K
代理商: EP9301-IQ
14
Copyright 2005 Cirrus Logic (All Rights Reserved)
DS636PP5
EP9301
Entry Level ARM9 System-on-Chip Processor
Memory Interface
SDRAM Load Mode Register Cycle
Figure 2
through
Figure 5
define the timings associated with all phases of the SDRAM. The following table contains the
values for the timings of each of the SDRAM modes.
Parameter
Symbol
Min
Typ
Max
Unit
SDCLK high time
t
clk_high
-
(t
HCLK
) / 2
-
ns
SDCLK low time
t
clk_low
-
(t
HCLK
) / 2
-
ns
SDCLK rise/fall time
t
clkrf
-
2
4
ns
Signal delay from SDCLK rising edge time
t
d
-
-
8
ns
Signal hold from SDCLK rising edge time
t
h
1
-
-
ns
DQMn delay from SDCLK rising edge time
t
DQd
-
-
8
ns
DQMn hold from SDCLK rising edge time
t
DQh
1
-
-
ns
DA valid setup to SDCLK rising edge time
t
DAs
2
-
-
ns
DA valid hold from SDCLK rising edge time
t
DAh
3
-
-
ns
Figure 2. SDRAM Load Mode Register Cycle Timing Measurement
SDCLK
SDCSn
RASn
CASn
SDWEn
DQMn
AD
DA
OP-Code
t
clk_high
t
clk_low
t
clkrf
t
d
t
h
相关PDF资料
PDF描述
EP9301-IQZ Entry-level ARM9 System-on-chip Processor
EP9302 High-speed ARM9 System-on-chip Processor with MaverickCrunch
EP9302-CQ Modular Connector
EP9302-CQZ High-speed ARM9 System-on-chip Processor with MaverickCrunch
EP9302-EQ High-speed ARM9 System-on-chip Processor with MaverickCrunch
相关代理商/技术参数
参数描述
EP9301-IQZ 功能描述:微处理器 - MPU IC Entry-Level ARM9 SOC Processor RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
EP9302 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:High-speed ARM9 System-on-chip Processor with MaverickCrunch
EP9302A-Z 制造商:Cirrus Logic 功能描述:- Bulk
EP9302-CQ 制造商:Cirrus Logic 功能描述:
EP9302-CQ/E1 制造商:Cirrus Logic 功能描述: