参数资料
型号: ADSP-2185BSTZ-133
厂商: Analog Devices Inc
文件页数: 18/32页
文件大小: 0K
描述: IC DSP CONTROLLER 16BIT 100TQFP
标准包装: 1
系列: ADSP-21xx
类型: 定点
接口: 主机接口,串行端口
时钟速率: 33.3MHz
非易失内存: 外部
芯片上RAM: 80kB
电压 - 输入/输出: 5.00V
电压 - 核心: 5.00V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 100-LQFP
供应商设备封装: 100-LQFP(14x14)
包装: 托盘
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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