参数资料
型号: EP7312-CVZ-90
厂商: Cirrus Logic Inc
文件页数: 11/54页
文件大小: 0K
描述: IC ARM720T MCU 90MHZ 208-LQFP
标准包装: 36
系列: EP7
核心处理器: ARM7
芯体尺寸: 32-位
速度: 90MHz
连通性: 编解码器,DAI,EBI/EMI,IrDA,键盘,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
配用: 598-1209-ND - KIT DEVELOPMENT EP73XX ARM7
其它名称: 598-1239
DS508F2
Copyright Cirrus Logic, Inc. 2011
(All Rights Reserved)
19
EP7312
High-Performance, Low-Power System on Chip
SDRAM Burst Write 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
SDQM
ADDR
DATA
SDMWE
0
D1
ADRAS
ADCAS
D4
D3
D2
t
CSa
t
RAa
t
CAa
t
CSa
t
CSd
t
RAd
t
CSd
t
CAd
t
ADv
t
DAd
t
ADv
t
DAd
t
DAd
t
DAd
t
MWa
t
MWd
Figure 5. SDRAM Burst Write Cycle Timing Measurement
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