r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1683

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

D.
D.1
The order of the power supply between the 1.0V series power supply (VDD10: VDD and VDD-
PLL1 to 2 and VDDA-PLL1), the 1.8V series power supply (VDD18: VDD-DDR) and the 3.3V
series power supply (VDD33: VDDQ and VDDQ-PLL1 to 2 and VDDQ-TD*) is as follows.
Note: * If VDDQ-TD is connected to VDDQ.
• Turning On Power Supply
• Turning Off Power Supply
There is no restriction for the order of the power supply between each power supply series
(VDD10, VDD18, VDD33). Within 300 ms after turning on one power supply series, turn on
all the other power supply series.
There is no restriction for the order of the power supply between each power supply series.
(VDD10, VDD18, VDD33). Within 300 ms after turning off the one power supply series, turn
off all the other power supply series.
0.1 × V**
0.9 × V**
Turning on
Turning off
Turning On and Off Power Supply
Turning On and Off Between Each Power Supply Series
Figure D.1 Sequence of Turning On and Off Each Power Supply
300 > t > or = 0
300 > t > or = 0
V** min
0.2 [V]
[ms]
[ms]
VDD10: VDD, VDD-PLL1 to 2, VDDA-PLL1
VDD18: VDD-DDR (except DDR2-SDRAM backup to turning on)
VDD33: VDDQ, VDDQ-PLL1 to 2, VDDQ-TD *
Note: * If VDDQ-TD is connected to VDDQ.
V**:
VDD10, VDD18 (transition from DDR power supply backup), VDD33
V**:
VDD10, VDD18 (transition from DDR power supply backup), VDD33
Rev.1.00 Jan. 10, 2008 Page 1653 of 1658
REJ09B0261-0100
Appendix