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SPEAR320S Datasheet(PDF) 76 Page - STMicroelectronics

Part # SPEAR320S
Description  Embedded MPU with ARM926 core for industrial and consumer applications
PDF  113 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPEAR320S Datasheet(HTML) 76 Page - STMicroelectronics

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Electrical characteristics
SPEAr320S
76/113
Doc ID 022508 Rev 2
4.9
Power-up sequence
It is recommended to power up the power supplies in the order shown in Figure 6.
VDD 1.2 is brought up first, followed by VDD 1.8, then VDD 2.5 and finally VDD 3.3. The minimum
time (
Δt) between each power up is >0 µs.
Figure 6.
Power-up sequence
4.10
Power-down sequence
All power supplies can be shut down at the same time.
VDD 1.2
VDD1.8
VDD 2.5
VDD 3.3
Power-up sequence
t
t
t



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