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參數(shù)資料
| 型號： | DSP56F805FV80E |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 28/56頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DSP 80MHZ 64KB FLASH 144LQFP |
| 標(biāo)準(zhǔn)包裝： | 60 |
| 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)： | 32 |
| 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： | 144-LQFP |
| 包裝： | 托盤 |
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56F805 Technical Data, Rev. 16
34
Freescale Semiconductor
3.7 Reset, Stop, Wait, Mode Select, and Interrupt Timing
Table 3-11 Reset, Stop, Wait, Mode Select, and Interrupt Timing1, 6
Operating Conditions: V
SS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C, CL ≤ 50pF
1.
In the formulas, T = clock cycle. For an operating frequency of 80MHz, T = 12.5ns.
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
2.
Circuit stabilization delay is required during reset when using an external clock or crystal oscillator in two cases:
After power-on reset
When recovering from Stop state
tRA
275,000T
128T
—
ns
RESET Deassertion to First External Address Output
tRDA
33T
34T
ns
Edge-sensitive Interrupt Request Width
tIRW
1.5T
—
ns
IRQA, IRQB Assertion to External Data Memory
Access Out Valid, caused by first instruction
execution in the interrupt service routine
tIDM
15T
—
ns
IRQA, IRQB Assertion to General Purpose Output
Valid, caused by first instruction execution in the
interrupt service routine
tIG
16T
—
ns
IRQA Low to First Valid Interrupt Vector Address Out
recovery from Wait State3
3.
The minimum is specified for the duration of an edge-sensitive IRQA interrupt required to recover from the Stop state. This is
not the minimum required so that the IRQA interrupt is accepted.
tIRI
13T
—
ns
IRQA Width Assertion to Recover from Stop State4
4.
The interrupt instruction fetch is visible on the pins only in Mode 3.
tIW
2T
—
ns
Delay from IRQA Assertion to Fetch of first instruction
(exiting Stop)
OMR Bit 6 = 0
OMR Bit 6 = 1
tIF
—
275,000T
12T
ns
Duration for Level Sensitive IRQA Assertion to Cause
the Fetch of First IRQA Interrupt Instruction (exiting
Stop)
OMR Bit 6 = 0
OMR Bit 6 = 1
tIRQ
—
275,000T
12T
ns
Delay from Level Sensitive IRQA Assertion to First
Interrupt Vector Address Out Valid (exiting Stop)
OMR Bit 6 = 0
OMR Bit 6 = 1
tII
—
275,000T
12T
ns
RSTO pulse width5
normal operation
internal reset mode
5.
ET = External Clock period, For an external crystal frequency of 8MHz, ET=125ns.
6.
Parameters listed are guaranteed by design.
tRSTO
63ET
2,097,151ET
ns
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