參數(shù)資料
型號: MC56F8346MFV60
廠商: MOTOROLA INC
元件分類: 數(shù)字信號處理
英文描述: 56F8346 16-bit Hybrid Controller
中文描述: 16-BIT, 120 MHz, OTHER DSP, PQFP144
封裝: LQFP-144
文件頁數(shù): 135/160頁
文件大?。?/td> 1415K
代理商: MC56F8346MFV60
External Memory Interface Timing
56F8346 Technical Data
Preliminary
135
Table 10-16 External Memory Interface Timing
Operating Conditions: V
SS
= V
SSIO
= V
SSA
= 0V, V
DD
= 1.62-1.98V, V
DDIO
= V
DDA
=
3.0–3.6V, T
A
= –40
°
to +125
°
C, C
L
50pF
Characteristic
Symbol
Wait States
Configuration
D
M
Wait States
Controls
Unit
Address Valid to WR Asserted
t
AWR
WWS=0
-2.121
0.50
WWSS
ns
WWS>0
-1.805
0.75 + DCAOE
WR Width Asserted to WR
Deasserted
t
WR
WWS=0
-0.063
0.25 + DCAOE
WWS
ns
WWS>0
-0.253
1.00
Data Out Valid to WR Asserted
t
DWR
WWS=0
-10.252
0.25 + DCAEO
WWSS
ns
WWS=0
-2.868
0.00
WWS>0
-9.505
0.50
WWS>0
-2.552
0.25 + DCAOE
Valid Data Out Hold Time after WR
Deasserted
t
DOH
-1.512
0.25 + DCAEO
WWSH
ns
Valid Data Out Set Up Time to WR
Deasserted
t
DOS
-2.047
0.25 + DCAOE
WWS,WWSS
ns
-9.000
0.50
Valid Address after WR
Deasserted
t
WAC
-3.888
0.25 + DCAEO
WWSH
ns
RD Deasserted to Address Invalid
t
RDA
-2.922
0.00
RWSH
ns
Address Valid to RD Deasserted
t
ARDD
-1.645
1.00
RWSS,RWS
ns
Valid Input Data Hold after RD
Deasserted
t
DRD
0.00
N/A
1
1.N/A, since device captures data before it deasserts RD
2.If RWSS = RWSH = 0, RD does not deassert during back-to-back reads and D = 0.00 should be used.
3.Substitute BMDAR for MDAR if there is no chip select
ns
RD Assertion Width
t
RD
0.257
1.00
RWS
ns
Address Valid to Input Data Valid
t
AD
-14.414
1.00
RWSS,RWS
ns
-19.299
1.25 + DCAOE
Address Valid to RD Asserted
t
ARDA
-2.002
0.00
RWSS
ns
RD Asserted to Input Data Valid
t
RDD
-12.411
1.00
RWSS,RWS
ns
-17.297
1.25 + DCAOE
WR Deasserted to RD Asserted
t
WRRD
-1.323
0.25 + DCAEO WWSH,RWSS
ns
RD Deasserted to RD Asserted
t
RDRD
-0.357
2
0.00
RWSS,RWSH
MDAR
3
ns
WR Deasserted to WR Asserted
t
WRWR
WWS=0
-1.442
0.75 + DCAEO
WWSS,
WWSH
ns
WWS>0
-0.695
1.00
RD Deasserted to WR Asserted
t
RDWR
WWS=0
-0.476
0.50
RWSH,
WWSS,
MDAR
3
ns
WWS>0
-0.160
0.75 + DCAOE
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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