ATSAMB11XR datasheet(15/87 Pages) MICROCHIP

Part #	ATSAMB11XR

Description	Ultra Low Power BLE 4.1 SiP/Module

PDF	87 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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15 / 87 page

Figure 5-1. Power-up/Power-down Sequence

The timing parameters are provided in following table.

Table 5-1. Power-up/Power-down Sequence Timing

Parameter Min. Max. Units

Description

Notes

VBAT rise to VDDIO rise

VBAT and VDDIO can rise

simultaneously or can be tied together

VDDIO rise to C_EN rise

C_EN must not rise before VDDIO. C_EN

must be driven high or low, not left

floating.

µs

C_EN rise to 31.25 kHz (2

MHz/64) oscillator stabilizing

tB'

C_EN fall to VDDIO fall

C_EN must fall before VDDIO. C_EN

must be driven high or low, not left

floating.

tA'

VDDIO fall to VBAT fall

VBAT and VDDIO can fall simultaneously

or be tied together

5.3

Digital and Mixed-Signal I/O Pin Behavior during Power-Up Sequences

The following table represents I/O pin states corresponding to device power modes.

ATSAMB11XR/ZR

Datasheet Preliminary

DS70005342A-page 15

ATSAMB11XR Datasheet(PDF) 15 Page - Microchip Technology