AcSiP Technology AI7681H User Manual
AcSiP Confidential
Product Name
Version
Doc No
Date
AI7681H
MT7681
802.11b/g/n IOT Module
D
901-06201
th
May 19
, 2015
0
g
AcSiP Confidential
Document History
Date Revised Contents Revised By Version
Dec 9th ,2014
Feb 6
Apr 17
th
,2015
th
,2015
May 19
th
,2015
Initial Version
Change Document Format & Specification
Change Mechanical Dimensions & Product
Marking
Change Product Marking for FCC & CE
Kidd
Kidd
Kidd
Kidd
A
B
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Product Name
Version
Doc No
AI7681H
MT7681
802.11b/g/n IOT Module
D
901-06201
May 19
Date
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AcSiP Confidential
INDEX
1. Description .................................................................................................................................................3
1-1. Block Diagram ...........................................................................................................................................4
1-2. Specification ..............................................................................................................................................4
2. Electrical Characteristics ...........................................................................................................................5
2-1. Absolute Maximum Ratings ......................................................................................................................5
2-2. Recommended Operating Range ...............................................................................................................5
2-3. DC Characteristics .....................................................................................................................................5
2-4. RF Characteristics ......................................................................................................................................6
3. Pin Definition .............................................................................................................................................8
3-1. Pin Description...........................................................................................................................................8
3-2. Pin Assignment and Footprint ....................................................................................................................9
3-3. Mechanical Dimensions ...........................................................................................................................10
4. Recommended Reflow Profile ................................................................................................................. 11
5. Module Preparation ..................................................................................................................................12
5-1. Handling ...................................................................................................................................................12
5-2. SMT Preparation ......................................................................................................................................12
6. Package Information ................................................................................................................................13
6-1 Product Marking ......................................................................................................................................13
6-2 Tray Dimension ........................................................................................................................................14
6-3 Packing Information.................................................................................................................................15
6-4 Humidity Indicator Card ..........................................................................................................................15
Product Name
Version
Doc No
AI7681H
MT7681
802.11b/g/n IOT Module
D
901-06201
May 19
Date
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AcSiP Confidential
1. Description
AcSiP Technology Corp. introduces a low-cost and low-power consumption IOT module, AI7681H. The
AI7681H integrate Wi-Fi single chip, which supports IEEE 802.11b/g/n stream, providing GPIO for intelligent
control, and UART interfaces for device communication.
The AI7681H integrate chip antenna and 8Mbits flash to reduce customer platform size. And also integrate
power manage unit for single 3.3V power source for cost effective design.
The AI7681H embedded 32-bit RISC MCU for 802.11b/g/n drivers, supplicant, TCP/IP protocol stack, and
networking applications, can be operated in station mode and softAP mode. The AI7681H is an ideal solution for
embedded device to enable networking service with minimized design effort.
Feature
Small footprint：18 mm x 15 mm x 1.7 mm
Single stream IEEE 802.11 b/g/n
32-bit RISC microprocessor as the host MCU
Embedded IEEE 802.11 b/g/n drivers, supplicant, and TCP/IP stack
Highly integrated RF PA, LNA, and RF switch
Integrate chip antenna and 8Mbits flash
Integrate high efficiency switching regulator for single 3.3V power source
Security support for WFA WPA/WPA2 personal, WPS2.0, WAPI
Operation in station mode or softAP mode
Rich interfaces, UART and GPIOs
RoHS & Halogen free compliant / Lead free
Product Name
Version
Doc No
Date
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AI7681H
MT7681
802.11b/g/n IOT Module
D
901-06201
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May 19
, 2015
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1-1. Block Diagram
AcSiP Confidential
A simplified block diagram of the AI7681H IOT module is depicted in the figure below.
1-2. Specification
Model Name AI7681H
Product Description IOT Module
Network Standard
Host Interface UART / GPIO[0..4]
Operation Conditions
Temperature
Humidity
Dimension 18 mm x 15 mm x 1.7 mm
Package LGA
Station mode：IEEE 802.11b/g/n
AP mode：IEEE 802.11b/g
Storage：-40℃ ~ +85℃
Operating：-10℃ ~ +70℃
Operating：10 ~ 95% (Non-Condensing)
Storage：5 ~ 95% (Non-Condensing)
Product Name
Version
Doc No
AI7681H
MT7681
802.11b/g/n IOT Module
D
901-06201
May 19
Date
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2. Electrical Characteristics
AcSiP Confidential
2-1. Absolute Maximum Ratings
Symbol Parameter Min. Typ. Max. Unit
3.3VD Supply Voltage -0.3 3.3 3.6 V
3.3VD_RF Supply Voltage (RF) -0.3 3.3 3.6 V
2-2. Recommended Operating Range
Symbol Parameter Min. Typ. Max. Unit
3.3VD Supply Voltage 2.97 3.3 3.63 V
3.3VD_RF Supply Voltage (RF) 2.97 3.3 3.63 V
2-3. DC Characteristics
Symbol Parameter Conditions Min. Max. Unit
VIL Input Low Voltage LVTTL -0.28 0.6 V
VIH Input High Voltage 2.0 3.63 V
VOL Output Low Voltage
VOH Output High Voltage
RPU Input Pull-Up Resistance PU=High, PD=Low 40 190
PRD Input Pull-Down Resistance PU=Low, PD=High 40 190
︱IOL︱= 1.6~14mA
︱IOH︱= 1.6~14mA
-0.28 0.4 V
2.4 VDD+0.33 V
KΩ
KΩ
Product Name
Version
Doc No
AI7681H
MT7681
802.11b/g/n IOT Module
D
901-06201
May 19
Date
5of 17
Pa
e
th
, 2015
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