Uart Interface; Uart Design Guide - SIMCom Wireless Solutions SIM7600A-H User Manual

The RESET pin has been pulled up to 1.8V internally, so it does not need to be pulled up externally.
It is strongly recommended to put a100nF capacitor and an ESD protection diode close to the
RESET pin. Please refer to the following figure for the recommended reference circuit.
Table 10: RESET pin electronic characteristic
Symbol Description
The active low level time impulse on
T
reset
RESET pin to reset module
V Input high level voltage
IH
V Input low level voltage
IL
3.3

UART Interface

Module provides a 7-wire UART (universalasynchronous serial transmission) interface as DCE
(Data Communication Equipment). AT commands and data transmission can be performed through
UART interface.
3.3.1

UART Design Guide

The following figures show the reference design.
SIM7600A-H_User Manual_V1.00
Figure 11: Reference reset circuit
Smart Machine Smart Decision
Min. Typ. Max.
100
1.17 1.8 2.1
-0.3 0 0.8
25
Unit
ms
V
V
2017-11-24