參數(shù)資料
型號: DSP56F803BU80E
廠商: Freescale Semiconductor
文件頁數(shù): 26/52頁
文件大?。?/td> 0K
描述: IC DSP 80MHZ 64KB FLASH 100LQFP
特色產(chǎn)品: DSP56F803 Digital Signal Controller
標準包裝: 90
系列: 56F8xx
核心處理器: 56800
芯體尺寸: 16-位
速度: 80MHz
連通性: CAN,EBI/EMI,SCI,SPI
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 16
程序存儲器容量: 71KB(35.5K x 16)
程序存儲器類型: 閃存
RAM 容量: 2.5K x 16
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-LQFP
包裝: 托盤
56F803 Technical Data, Rev. 16
32
Freescale Semiconductor
Figure 3-11 External Bus Asynchronous Timing
3.7 Reset, Stop, Wait, Mode Select, and Interrupt Timing
1.
Timing is both wait state and frequency dependent. In the formulas listed, WS = the number of wait states and
T = Clock Period. For 80MHz operation, T = 12.5ns.
2.
Parameters listed are guaranteed by design.
To calculate the required access time for an external memory for any frequency < 80Mhz, use this formula:
Top = Clock period @ desired operating frequency
WS = Number of wait states
Memory Access Time = (Top*WS) + (Top- 11.5)
Table 3-11 Reset, Stop, Wait, Mode Select, and Interrupt Timing 1, 5
Operating Conditions: V
SS = VSSA = 0 V, VDD = VDDA = 3.0–3.6V, TA = –40° to +85°C, CL 50pF
Characteristic
Symbol
Min
Max
Unit
See Figure
RESET Assertion to Address, Data and Control
Signals High Impedance
tRAZ
—21
ns
Minimum RESET Assertion Duration2
OMR Bit 6 = 0
OMR Bit 6 = 1
tRA
275,000T
128T
ns
RESET De-assertion to First External Address Output
tRDA
33T
34T
ns
A0–A15,
PS, DS
(See Note)
WR
D0–D15
RD
Note: During read-modify-write instructions and internal instructions, the address lines do not change state.
Data In
Data Out
tAWR
tARDA
tARDD
tRDA
tRD
tRDRD
tRDWR
tWRWR
tWR
tDOS
tWRD
tWRRD
tAD
tDOH
tDRD
tRDD
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