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參數(shù)資料
| 型號： | ADSP-21366SKBC-ENG |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 16-BIT, 55.55 MHz, OTHER DSP, PBGA136 |
| 封裝： | MO-205AE, MBGA-136 |
| 文件頁數(shù)： | 18/54頁 |
| 文件大小： | 559K |
| 代理商： | ADSP-21366SKBC-ENG |
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Rev. PrA
|
Page 18 of 54
|
September 2004
ADSP-21365/6
Preliminary Technical Data
Power-Up Sequencing
The timing requirements for processor startup are given in
Table 10
.
Table 10. Power Up Sequencing Timing Requirements (Processor Startup)
Parameter
Timing Requirements
t
RSTVDD
t
IVDDEVDD
t
CLKVDD
1
t
CLKRST
t
PLLRST
Min
Max
Unit
RESET Low Before V
DDINT
/V
DDEXT
on
V
DDINT
on Before V
DDEXT
CLKIN Valid After V
DDINT
/V
DDEXT
Valid
CLKIN Valid Before RESET Deasserted
PLL Control Setup Before RESET Deasserted
0
–50
0
10
2
20
3
ns
ms
ms
μs
μs
200
200
Switching Characteristic
t
CORERST
1
Valid V
DDINT
/V
DDEXT
assumes that the supplies are fully ramped to their 1.2 and 3.3 volt rails. Voltage ramp rates can vary from microseconds to hundreds of milliseconds
depending on the design of the power supply subsystem.
2
Assumes a stable CLKIN signal, after meeting worst-case startup timing of crystal oscillators. Refer to your crystal oscillator manufacturer's datasheet for startup time.
Assume a 25 ms maximum oscillator startup time if using the XTAL pin and internal oscillator circuit in conjunction with an external crystal.
3
Based on CLKIN cycles
4
Applies after the power-up sequence is complete. Subsequent resets require a minimum of 4 CLKIN cycles for RESET to be held low in order to properly initialize and
propagate default states at all I/O pins.
5
The 4096 cycle count depends on t
SRST
specification in
Table 12
. If setup time is not met, 1 additional CLKIN cycle may be added to the core reset time, resulting in 4097
cycles maximum.
Core Reset Deasserted After RESET Deasserted
4096t
CK
+ 2 t
CCLK
4, 5
Figure 6. Power-Up Sequencing
CLKIN
RESET
t
RSTVDD
RSTOUT
VDDEXT
VDDINT
t
PLLRST
t
CLKRST
t
CLKVDD
t
IVDDEVDD
CLK_CFG1-0
t
CORERST
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| ADSP-21366YSWZ-2AA | 功能描述:IC DSP 32BIT 200MHZ EPAD 144LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP（數(shù)字式信號處理器） 系列:SHARC® 標準包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI，以太網(wǎng)，RS-232 時鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA（20x20） 包裝:托盤 |
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