参数资料
型号: 951200201
厂商: ATMEL CORP
元件分类: 数字信号处理外设
英文描述: 40-BIT, DSP-FLOATING POINT PROCESSOR, QFP256
封装: MQFP-256
文件页数: 30/50页
文件大小: 702K
代理商: 951200201
36
TSC21020F
4153H–AERO–04/07
Memory Read
Parameter
20 MHz
Frequency
Dependency(1)
Unit
Min
Max
Min
Max
t
DAD Address, Select to Data Valid
37
37 + DT
ns
t
DRLD xRD Low to Data Valid
24
24 + 5DT/8
ns
tHDA Data Hold from Address,
Select
0
ns
tHDRH Data Hold from xRD High
-1
ns
t
DAAK xACK Delay from Address
27
27 + 7DT/8
ns
t
DRAK xACK Delay from xRD Low
15
15 + DT/2
ns
tSAK xACK Setup before CLKIN
High
14
14 + DT/4
ns
tHAK xACK Hold after CLKIN High
0
ns
t
DARL Address, Select to xRD Low
8
8 + 3DT/8
ns
t
DAP xPAGE Delay from Address,
Select
1
ns
t
DCKRL CLKIN High to xRD Low
16
26
16 + DT/4
26 + DT/4
ns
t
RW xRD Pulse Width
26
26 +
5DT/8
ns
t
RWR xRD High to xRD, xWR Low
17
17 +
3DT/8
ns
Notes:
1. DT = t
CK - 50 ns
2. x = PM or DM; Address = PMA23-0, DMA31-0; Data = PMD47-0, DMD39-0;
Select = PMS1-0, DMS3-0.
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