參數(shù)資料
型號(hào): ADSP-2171BSZ-133
廠商: Analog Devices Inc
文件頁(yè)數(shù): 18/52頁(yè)
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 16BIT 128PQFP
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: 33MHz
非易失內(nèi)存: 外部
芯片上RAM: 10kB
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: 128-BFQFP
供應(yīng)商設(shè)備封裝: 128-MQFP(14x20)
包裝: 托盤
ADSP-2171/ADSP-2172/ADSP-2173
REV. A
–25–
ADSP-2171/ADSP-2172
Parameter
Min
Max
Unit
Host Interface Port
Separate Data and Address (HMD1 = 0)
Read Strobe and Write Strobe (HMD0 = 0)
Timing Requirement:
tHSU
HA2–0 Setup before Start of Write or Read
1, 2
5ns
tHDSU
Data Setup before End of Write
3
5ns
tHWDH
Data Hold after End of Write
3
3ns
tHH
HA2–0 Hold after End of Write or Read
3, 4
3ns
tHRWP
Read or Write Pulse Width
5
20
ns
Switching Characteristic:
tHSHK
HACK
Low after Start of Write or Read
1, 2
015
ns
tHKH
HACK
Hold after End of Write or Read
3, 4
015
ns
tHDE
Data Enabled after Start of Read
2
0ns
tHDD
Data Valid after Start of Read
2
18
ns
tHRDH
Data Hold after End of Read
4
0ns
tHRDD
Data Disabled after End of Read
4
7ns
NOTES
1Start of Write = HWR Low and HSEL Low.
2Start of Read = HRD Low and HSEL Low.
3End of Write = HWR High or HSEL High.
4End of Read = HRD High or HSEL High.
5Read Pulse Width = HRD Low and HSEL Low, Write Pulse Width = HWR Low and HSEL Low.
DATA
HD15–0
HSEL
HWR
HACK
HA2–0
ADDRESS
t
HSU
t
HH
t
HWDH
t
HRWP
t
HSHK
t
HKH
t
HDSU
DATA
HD15–0
HSEL
HRD
HACK
HA2–0
ADDRESS
t
HSU
t
HH
t
HRWP
t
HRDH
t
HKH
t
HSHK
t
HRDD
t
HDE
t
HDD
Figure 14. Host Interface Port (HMD1 = 0, HMD0 = 0)
Host Write Cycle
Host Read Cycle
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