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ADSP2181 Datasheet(PDF) 14 Page - Analog Devices

Part # ADSP2181
Description  DSP Microcomputer
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADSP2181 Datasheet(HTML) 14 Page - Analog Devices

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REV. D
ADSP-2181
–14–
Parameter
Min
Max
Unit
Clock Signals and Reset
Timing Requirements:
tCKI
CLKIN Period
50
150
ns
tCKIL
CLKIN Width Low
20
ns
tCKIH
CLKIN Width High
20
ns
Switching Characteristics:
tCKL
CLKOUT Width Low
0.5tCK – 7
ns
tCKH
CLKOUT Width High
0.5tCK – 7
ns
tCKOH
CLKIN High to CLKOUT High
0
20
ns
Control Signals
Timing Requirement:
tRSP
RESET Width Low
5tCK
1
ns
NOTE
1Applies after power-up sequence is complete. Internal phase lock loop requires no more than 2000 CLKIN cycles assuming stable CLKIN (not including crystal
oscillator start-up time).
tCKOH
tCKI
tCKIH
tCKIL
tCKH
tCKL
tMH
tMS
CLKIN
CLKOUT
PF(2:0)
*
RESET
*PF2 IS MODE C, PF1 IS MODE B, PF0 IS MODE A
Figure 8. Clock Signals



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