Timing Requirements: tIKW
參數(shù)資料
型號(hào): ADSP-2185BSTZ-133
廠商: Analog Devices Inc
文件頁(yè)數(shù): 18/32頁(yè)
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 16BIT 100TQFP
標(biāo)準(zhǔn)包裝: 1
系列: ADSP-21xx
類型: 定點(diǎn)
接口: 主機(jī)接口,串行端口
時(shí)鐘速率: 33.3MHz
非易失內(nèi)存: 外部
芯片上RAM: 80kB
電壓 - 輸入/輸出: 5.00V
電壓 - 核心: 5.00V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(14x14)
包裝: 托盤(pán)
ADSP-2185
REV. 0
–25–
Parameter
Min
Max
Unit
IDMA Write, Long Write Cycle
Timing Requirements:
tIKW
IACK Low before Start of Write
1
0ns
tIKSU
IAD15–0 Data Setup before
IACK Low
2, 3, 4
0.5 tCK + 10
ns
tIKH
IAD15–0 Data Hold after
IACK Low
2, 3, 4
2ns
Switching Characteristics:
tIKLW
Start of Write to
IACK Low
4
1.5 tCK
ns
tIKHW
Start of Write to
IACK High
15
ns
NOTES
1Start of Write = IS Low and IWR Low.
2If Write Pulse ends before IACK Low, use specifications t
IDSU, tIDH.
3If Write Pulse ends after IACK Low, use specifications t
IKSU, tIKH.
4This is the earliest time for IACK Low from Start of Write. For IDMA Write cycle relationships, please refer to the ADSP-2100 Family User’s Manual.
IAD 15–0
DATA
tIKHW
tIKW
IACK
IS
IWR
tIKLW
tIKH
tIKSU
Figure 22. IDMA Write, Long Write Cycle
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