參數(shù)資料
型號: EP7211
廠商: Cirrus Logic, Inc.
英文描述: HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
中文描述: 高性能超低功耗系統(tǒng)與LCD控制器芯片
文件頁數(shù): 139/166頁
文件大?。?/td> 2623K
代理商: EP7211
EP7211
High-Performance Ultra-Low-Power System-on-Chip with LCD Controller
139
Electrical Specifications
DS352PP3
JUL 2001
Figure 6-4. DRAM Read Cycles at 13 MHz and 18.432 MHz
NOTES:
1)
2)
3)
4)
5)
6)
t
RC
(Read cycle time) = 150 ns max at 18.432 MHz and 230 ns at 13 MHz
t
RAS
(RAS pulse width) = 70 ns max at 18.432 MHz and 110 ns at 13 MHz
t
RP
(RAS precharge time) = 70 ns max at 18.432 MHz and 110 ns at 13 MHz
t
CAS
(CAS pulse width) = 20 ns max at 18.432 MHz and 30 ns at 13 MHz
t
CP
(CAS precharge in page mode) = 12 ns max at 18.432 MHz and 20 ns at 13 MHz
t
PC
(Page mode cycle time) = 45 ns min at max at 18.432 MHz and 70 ns at 13 MHz
Word reads shown, for byte reads only one off
NCAS[3:0]
will be active,
NCAS0
for byte 0, etc.
ROW
COL
DRA[12:0]
EXPCLK
NMOE
D[31:0]
5$6
ROW
COL1
COL2
NRAS[1:0]
NCAS[3:0]
NMWE
WORD/
HALFWORD
WRITE
1
2
5&
53
&3
3&
&$6
COLn
n
DRAM Word Read followed by Page Mode Read (EXPCLK shown for reference only)
相關(guān)PDF資料
PDF描述
EP7211-CP-A HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
EP7211-CV-A HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
EP7212 HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CB-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CV-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
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