參數(shù)資料
型號: MJ-80C32E-30/883
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, 30 MHz, MICROCONTROLLER, PQCC44
封裝: MQFP-44
文件頁數(shù): 6/20頁
文件大?。?/td> 239K
代理商: MJ-80C32E-30/883
14
80C32E
Rev. K – 21-Aug-01
Table 5. External Data Memory Characteristics (ns)
Figure 8. External Data Memory Write Cycle
Symbol
Parameter
30 MHz
min
max
T
RLRH
RD Pulse Width
180
T
WLWH
WR Pulse Width
180
T
RLDV
RD to Valid Data In
135
T
RHDX
Data Hold After RD
0
T
RHDZ
Data Float After RD
70
T
LLDV
ALE to Valid Data In
235
T
AVDV
Address to Valid Data In
260
T
LLWL
ALE to WR or RD
90
115
T
AVWL
Address to WR or RD
115
T
QVWX
Data Valid to WR Transition
20
T
QVWH
Data set-up to WR High
215
T
WHQX
Data Hold After WR
20
T
RLAZ
RD Low to Address Float
0
T
WHLH
RD or WR High to ALE high
20
40
ALE
PSEN
RD
PORT 0
PORT 2
A0-A7
DATA IN
ADDRESS
OR SFR-P2
T
AVWL
T
LLWL
TRLAZ
ADDRESS A8-A15 OR SFR P2
T
RHDZ
TWHLH
T
RLRH
TLLDV
T
RHDX
T
AVDV
TLLAX
T
RLDV
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