Datasheet

NXP Semiconductors
88W8977
2.4 GHz/5 GHz Dual-band 1x1 Wi-Fi 4
®
and Bluetooth
®
5 Combo SoC
88W8977 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved.
Product short data sheet Rev. 1 — 13 July 2020
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5.2.3 Power-up sequence
• VPA must be good (90%) before AVDD18 starts ramping up.
• AVDD18 must be good (90%) before VCORE starts ramping up.
Figure 8 shows the power-up sequence.
Internal POR
Strap/
Internal
RESETn
Boot ROM execution starts and firmware
download begins
1.1V
VCORE
VIN/VIO
EN
(PMIC_EN)
VPA
2.2V
Power_good (90%)
AVDD18
1.8V
PDn
1.8V
Power_good (90%)
XTAL_IN
Figure 8. Power-up sequence