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E78-400M22S

[IC] : ASR6501

[Frequency] : 410~493MHz

[Power] : 22dBm

[Distance] : 7km

[Interface] : SoC

[Introduction] : E78-400M22S is a SoC LoRa RF module designed by Ebyte. This module adopts ASR6501 chip of ASR company. Small size, low power consumption, and it supports LoRaWAN, LinkWAN protocols, suitable for various IoT application scenarios.

EN_改版E78-400M22S (1)EN_E78-400M22S_01 (2)EN_E78-400M22S_01 (3)EN_E78-400M22S_01 (4)EN_E78-400M22S_01 (5)EN_E78-400M22S_01 (6)EN_E78-400M22S_01 (7)

RF ParameterValue
Remark
Working frequency
410~493 MHz

Support ISM band

Transmitting power22 dBm

Max. Power (160mW)

Receiving sensitivity
-140 dBm

Air data rate is 0.018kbps

Air data rate

0.018k~62.5kbps

0.6k~300kbps

Lora

GFSK

Test distance7000m

Test condition:clear and open area, antenna gain: 5dBi,

antenna height: 2.5m,air data rate: 1kbps


Hardware ParameterValue
Remark

Size

14 * 20 mm

-

Antenna type

IPEX / Stamp hole

50 ohm impedance

Communication interface

SoC

-

Package

SMD

-    


Electronic parameterMin.Typ.Max.UnitCondition
Power supply
2.53.33.7V≥3.3 V ensures output power
Communication level-3.3-V

For 5VTTL, it may be at risk of burning down

Transmitting current
-115-mAInstant power consumption
Receiving current
-
24-mA
-
Sleep current
-
2.5-nASoftware is shut down
Operating temperature
-4020
+85-
Operating humidity
1060
90%-
Storage temperature
-4020
+125-


E78-400M22S_Size

Pin No.
Pin ItemPin DirectionPin Application

1

GND

-

Ground wire, connected to the power reference ground

2

VCC

-

Power supply, range 2.5-3.7V (external ceramic filter capacitor is recommended)

3

SETB

Input/output

Ground wire, connected to the power reference ground

4

DIO1

Input/output

Multipurpose digital IO cannot be used as external GPIO

5

BUSY

Input/output

SPI busy indicator that cannot be used as an external GPIO

6

I2C_SDA

Input/output

I2C SCL pins

7

I2C_SCL

Input/output

I2C SDA pin

8

UART_CTS

Input/output

UART CTS pin

9

UART_RTS

Input/output

UART RTS pin

10

GND

-

Ground wire, connected to the power reference ground

11

ANT

-

Antenna interface, stamp hole (50 ohm characteristic impedance)

12

GND

-

Ground wire, connected to the power reference ground

13

GND

-

Ground wire, connected to the power reference ground

14

GND

-

Ground wire, connected to the power reference ground

15

GND

-

Ground wire, connected to the power reference ground

16

XRES

Input

External reset pins

17

ADC_IN

Input

ADC input pin

18

AUX

Input/output

MCU GPIO

19

SETA

Input/output

MCU GPIO

20

UART_RX

Input/output

UART RX pin

21

UART_TX

Input/output

UART TX pin

22

SWD_DATA

Input/output

SWD Data pins

23

SWD_CLK

Input/output

SWD Clock pin

24

GND

-

Ground wire, connected to the power reference ground

25

SPI_MISO

Input/output

SPI MISO test point, internally connected, cannot be used as external SPI

26

SPI_NSS

Input/output

SPI NSS test point, internally connected, cannot be used as an external SPI

27

SPI_MOSI

Input/output

SPI MOSI test point, internally connected, cannot be used as an external SPI

28

SPI_SCK

Input/output

SPI SCK test point, internally connected, cannot be used as external SPI

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ModelIC Interface Frequency
Hz
Power
dBm
Distance
km
Air
Rate(bps)
Package Size
(mm)
Feature ManualSample
E78-400M22S ASR6501 SoC 433M 22 7 0.018k~62.5k SMD 14*20 Low consumption, anti-interference
  • E78-400M22S

    Product model:E78-400M22S

    IC : ASR6501

    Interface : SoC

    Frequency Hz : 433M

    Power dBm : 22

    Distance km : 7

    Air Rate(bps) : 0.018k~62.5k

    Package : SMD

    Size (mm) : 14*20

    Feature : Low consumption, anti-interference

    PDF :

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