Quectel EC200T Series User Manual

LTE Standard Module Series
EC200T Series Hardware Design
EC200T_Series_Hardware_Design 56 / 90
Table 25: Pin Definition of FORCE_USB_BOOT Interface
Pin Name Pin No. I/O Description Comment
FORCE_
USB_BOOT
115 DI
Force the module into
emergency download mode
1.8 V power domain.
Active high.
It is recommended to reserve test
points.
The following figure shows a reference circuit of FORCE_USB_BOOT interface.
Figure 26: Reference Circuit of FORCE_USB_BOOT Interface
V
IL
≤ 0.5V
VBAT
PWRKEY
≥ 500 ms
RESET_N
NOTE 1
VDD_EXT
About 5 ms
FORCE_
USB_BOOT
FORCE_USB_BOOT can be pulled up to 1.8 V
before VDD_EXT is powered up, and the module
will enter emergency download mode when it is
powered on.
About 22 ms
Figure 27: Timing Sequence for Entering Emergency Download Mode

Quectel EC200T Series Specifications

General

Brand	Quectel
Model	EC200T Series
Category	Control Unit
Language	English