Quectel EC200T Series, Проектирование аппаратного обеспечения

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LTE Standard Module Series
EC200T Series Hardware Design
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Main UART Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
MAIN_RI 62 DO
Main UART ring
indication V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power domain.
If unused, keep it
open.
MAIN_DCD 63 DO
Main UART data
carrier detect V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power domain.
If unused, keep it
open.
MAIN_CTS 64 DO
Main UART clear to
send V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power domain.
If unused, keep it
open.
MAIN_RTS 65 DI
Main UART request to
send
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power domain.
If unused, keep it
open.
MAIN_DTR 66 DI
Main UART data
terminal ready
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power domain.
If unused, keep it
open.
MAIN_TXD 67 DO Main UART transmit
V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power domain.
If unused, keep it
open.
MAIN_RXD 68 DI Main UART receive
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power domain.
If unused, keep it
open.
Debug UART Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
DBG_RXD 11 DI Debug UART receive
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power domain.
If unused, keep it
open.
DBG_TXD 12 DO Debug UART transmit
V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power domain.
If unused, keep it
open.
ADC Interfaces
Pin Name Pin No. I/O Description DC Characteristics Comment
ADC1 44 AI
General-purpose ADC
interface Voltage range:
0 V to VBAT_BB If unused, keep it
open.