Quectel UC20 User Manual

UMTS/HSPA Module Series
UC20 Hardware Design
UC20_Hardware_Design Confidential / Released 53 / 84
VDD_MCU
10K
Module
STATUS MCU_GPIO
Module
STATUS
VBAT
2.2K
Figure 32: Reference Circuit of the STATUS
3.16.2. SLEEP_IND
The SLEEP_IND is an indicated pin for judging whether the module is in sleep mode or not. When the
module enters into the sleep mode, the SLEEP_IND will output a logic high level. So you can use the
SLEEP_IND for low current indication. The following table shows the pin definition of SLEEP_IND.
Table 22: Pin Definition of SLEEP_IND
Pin Name
Pin No.
I/O
Description
Comment
SLEEP_IND
3
DO
Indicate the sleep status.
1.8V power domain.
Outputs high level when the
module is in sleep mode.

Quectel UC20 Specifications

General

Brand	Quectel
Model	UC20
Category	Control Unit
Language	English