參數(shù)資料
型號: MB86860
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 200 MHz, RISC PROCESSOR, PBGA352
封裝: PLASTIC, BGA-352
文件頁數(shù): 33/70頁
文件大?。?/td> 1395K
代理商: MB86860
Specifications subject to changes without prior notice
45
MB86860 SPARClite
5.3.6.6. Refresh
SADR
SCLK
CMD
PALL
PRC=1
PRC=0
SBA
tRP
tRC
ACTV
AP
REF
SBA
BAm BAn
SADR
AP=0
CMD
PRE
ACTV
REF
BA
RA
5.3.6.7. Values Predetermined by Number of SDRAM I/F Cycles
Parameter
Symbol
MIN
unit
notes
RAS# Access Time
tRAC
6
cycle
RAS#-CAS# Delay Time
tRCD
3
cycle
CAS# Access Time
tCAC
3
cycle
CAS# to CAS# Delay
CCD
2
cycle
CAS# Bank Delay
CBD
2
cycle
RAS# Cycle Time
tRC
9
cycle
RAS# Precharge Time
tRP
3
cycle
RAS# Active Time
tRAS
6
cycle
SE
SCLK
PALL
CMD
RESET#
REF is asserted 8 times
tRP
REF0
tINI
MRS
tRC
~
8
tRC
REF1
ACTV
lMRD
SDI
x
PRC=
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