参数资料
型号: EP7311-CV
厂商: Cirrus Logic Inc
文件页数: 9/42页
文件大小: 0K
描述: IC ARM720T MCU 74MHZ 208-LQFP
标准包装: 36
系列: EP7
核心处理器: ARM7
芯体尺寸: 32-位
速度: 74MHz
连通性: 编解码器,EBI/EMI,IrDA,键盘,多媒体编解码器,SPI/Microwire1,UART/USART
外围设备: LCD,LED,MaverickKey,PWM
输入/输出数: 27
程序存储器类型: ROMless
RAM 容量: 56K x 8
电压 - 电源 (Vcc/Vdd): 2.3 V ~ 2.7 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 208-LQFP
包装: 托盘
其它名称: 598-1224
DS506F2
Copyright Cirrus Logic, Inc. 2011
(All Rights Reserved)
17
EP7311
High-Performance, Low-Power System on Chip
SDRAM Load Mode Register Cycle
Note:
1. Timings are shown with CAS latency = 2
2. The SDCLK signal may be phase shifted relative to the rest of the SDRAM control and data signals due to uneven loading.
Designers should take care to ensure that delays between SDRAM control and data signals are approximately equal
SDCLK
SDCS
SDRAS
SDCAS
ADDR
DATA
SDQM
SDMWE
t
CSa
t
RAa
t
CAa
t
MWa
t
ADv
t
ADx
t
RAd
t
CSd
t
CAd
t
MWd
Figure 3. SDRAM Load Mode Register Cycle Timing Measurement
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