參數(shù)資料
型號: MCIMX507CVM8B
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PBGA400
封裝: 17 X 17 MM, 0.5 MM PITCH, ROHS COMPLIANT, PLASTIC, MABGA-400
文件頁數(shù): 67/120頁
文件大小: 1980K
代理商: MCIMX507CVM8B
i.MX50 Applications Processors for Consumer Products, Rev. 0
50
Freescale Semiconductor
Electrical Characteristics
NF5
WE pulse width
tWP
DS*T
10
ns
NF6
ALE setup time
tALS
(AS+1)*T
10
ns
NF7
ALE hold time
tALH
(DH+1)*T
20
ns
NF8
Data setup time
tDS
DS*T
10
ns
NF9
Data hold time
tDH
DH*T
10
ns
NF10
Write cycle time
tWC
(DS+DH)*T
20
ns
NF11
WE hold time
tWH
DH*T
10
ns
NF12
Ready to RE low
tRR
(AS+1)*T
10
ns
NF13
RE pulse width
tRP
DS*T
10
ns
NF14
READ cycle time
tRC
(DS+DH)*T
20
ns
NF15
RE high hold time
tREH
DH*T
10
ns
NF16
Data setup on read
tDSR
N/A
10
ns
NF17
Data hold on read
tDHR
N/A
10
ns
1 GPMI’s Async Mode output timing could be controlled by module’s internal register, say
HW_GPMI_TIMING0_ADDRESS_SETUP, HW_GPMI_TIMING0_DATA_SETUP, and HW_GPMI_TIMING0_DATA_HOLD.
This AC timing depends on these registers’ setting. In the above table, we use AS/DS/DH representing these settings each.
2 T represents for the GPMI clock period.
3 AS minimum value could be 0, while DS/DH minimum value is 1.
Table 37. Asynchronous Mode Timing Parameters1 (continued)
ID
Parameter
Symbol
Timing
T2 = GPMI Clock Cycle3
Example Timing for
GPMI Clock
≈ 100MHz
T = 10ns
Unit
Min.
Max.
Min.
Max.
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