Copyright Cirrus Logic, Inc. 2011 (All Rights Reserved) 19 EP7311 High-Performance, Low-Power S" />
參數(shù)資料
型號(hào): EP7311-IR-90
廠商: Cirrus Logic Inc
文件頁(yè)數(shù): 11/42頁(yè)
文件大小: 0K
描述: IC ARM720T MCU 90MHZ 204-TFBGA
標(biāo)準(zhǔn)包裝: 119
系列: EP7
核心處理器: ARM7
芯體尺寸: 32-位
速度: 90MHz
連通性: 編解碼器,EBI/EMI,IrDA,鍵盤(pán),多媒體編解碼器,SPI/Microwire1,UART/USART
外圍設(shè)備: LCD,LED,MaverickKey,PWM
輸入/輸出數(shù): 27
程序存儲(chǔ)器類(lèi)型: ROMless
RAM 容量: 56K x 8
電壓 - 電源 (Vcc/Vdd): 2.3 V ~ 2.7 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 204-TFBGA
包裝: 托盤(pán)
其它名稱: 598-1229
DS506F2
Copyright Cirrus Logic, Inc. 2011
(All Rights Reserved)
19
EP7311
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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