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MK71521-NNN [ROHM]

蓝碧石科技的“MK71511(A)”和“MK71521(A)”是支持Bluetooth 5的Bluetooth low energy单模无线模块。 “MK71511(A)”内置Nordic公司的nRF52811，“MK71521(A)”内置Nordic公司的nRF52832。“MK71511(A)”和“MK71521(A)”支持2Mbps高速传输（Bluetooth 5标准的特点之一）和提高通知数据容量（扩展广告），与Bluetooth 4标准相比，数据通信时间仅为一半，可处理通知数据容量高达8倍。而且，“MK71511(A)”还内置远距离传输功能，通信距离延长至以往Bluetooth的4倍，因此，不仅非常适用于室内应用，还非常适用于户外应用。不仅如此，还内置方向检测功能，因此还可以应用于可高精度识别位置的室内定位服务。而“MK71521(A)”则内置了保存程序用的512KB大容量FLASH存储器，非常适用于利用Bluetooth构建网状网络和各种应用产品的开发。此外，这两种产品具有相同的形状，而且引脚兼容，可以轻松替换，还可以安装在便宜的2层电路板上，有助于降低制造成本。;
MK71521-NNN
型号： MK71521-NNN
厂家： ROHM    ROHM
描述：

蓝碧石科技的“MK71511(A)”和“MK71521(A)”是支持Bluetooth 5的Bluetooth low energy单模无线模块。 “MK71511(A)”内置Nordic公司的nRF52811，“MK71521(A)”内置Nordic公司的nRF52832。“MK71511(A)”和“MK71521(A)”支持2Mbps高速传输（Bluetooth 5标准的特点之一）和提高通知数据容量（扩展广告），与Bluetooth 4标准相比，数据通信时间仅为一半，可处理通知数据容量高达8倍。而且，“MK71511(A)”还内置远距离传输功能，通信距离延长至以往Bluetooth的4倍，因此，不仅非常适用于室内应用，还非常适用于户外应用。不仅如此，还内置方向检测功能，因此还可以应用于可高精度识别位置的室内定位服务。而“MK71521(A)”则内置了保存程序用的512KB大容量FLASH存储器，非常适用于利用Bluetooth构建网状网络和各种应用产品的开发。此外，这两种产品具有相同的形状，而且引脚兼容，可以轻松替换，还可以安装在便宜的2层电路板上，有助于降低制造成本。

通信 无线 无线模块 数据通信 存储
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Dear customer  
LAPIS Semiconductor Co., Ltd. ("LAPIS Semiconductor"), on the 1st day of October,  
2020, implemented the incorporation-type company split (shinsetsu-bunkatsu) in which  
LAPIS established a new company, LAPIS Technology Co., Ltd. (“LAPIS  
Technology”) and LAPIS Technology succeeded LAPIS Semiconductor’s LSI business.  
Therefore, all references to "LAPIS Semiconductor Co., Ltd.", "LAPIS Semiconductor"  
and/or "LAPIS" in this document shall be replaced with "LAPIS Technology Co., Ltd."  
Furthermore, there are no changes to the documents relating to our products other than  
the company name, the company trademark, logo, etc.  
Thank you for your understanding.  
LAPIS Technology Co., Ltd.  
October 1, 2020  
FEDK71521-02  
Issue Date：May,20,2020  
MK71521/MK71521A  
Bluetooth® low energy wireless module  
■ Overview  
MK71521/MK71521A is a wireless module which is integrating Bluetooth® low energy LSI nRF52832, 32MHz/ 32.768kHz  
crystal oscillator, 2.4GHz PCB pattern antenna and passive components.  
MK71521/MK71521A is suitable for applications such as Healthcare, fitness device, security device, IoT devices (industrial /  
consumer).  
■ Features  
● Bluetooth® Ver5.2 low energy module  
● Radio certification  
MIC JAPAN（certification no: 006-000798 [MK71521] / 006-000800 [MK71521A]）  
FCC(FCC ID:2ACIJ71521)  
ISED(IC:20971-71521)  
CE(RED) EN300 328 V2.2.2  
● Bluetooth® Qualification （RF-PHY Component Qualification, QDID:146740）  
● Bluetooth® low energy LSI Nordic nRF52832  
-
2.4GHz Transceiver  
-
-
-
-
-96dBm sensitivity in 1Mbps Bluetooth® low energy mode  
Supported data rete:2Mbps,1Mbps Bluetooth® low energy mode  
-20 to +4dBm TX power,configurable in 4dB steps  
RSSI(1dB resolution)  
-
-
-
-
-
-
-
-
-
-
64MHz Arm® Cortex®-M4 processor with FPU  
Flash512kB、RAM64kB  
128bit AES ECB/CCM/AAR  
Digital Interface:SPI/I2C/I2S/UART/PDM/QDEC  
ADC 12-bit 200 ksps  
Comparators General purpose, low-power  
Temperature sensor  
Timers/Counters 32-bit, RTC  
Pluse width modulator(PWM)  
NFC NFC-A Tag  
● Integrated 32MHz /32.768kHz crystal oscillator（※）  
● Integrated bypass capacitor and external component of switching regulator  
● General Purpose Input/Output（Maximum 30ports[MK71521]／Maximum 32ports[MK71521A]）  
● Single power supply  
1.7V to 3.6V (Typ.3.0V)  
● Operating Temperature -40 deg.C to 85 deg.C  
● Current Consumptions  
Active RX (1Mbps) 5.4 mA  
Active TX（0dBm） 5.3 mA  
● PKG  
● Dimension  
M-FLGA54-9.7X13.4-0.80-9Y  
9.7 mm(W)×13.4 mm(L)×2.0 mm(H)(TYP)  
● Pb Free, RoHS compliant  
（※） MK71521A does not built-in a 32.768kHz crystal oscillator.  
• Bluetooth® is a registered trademark of Bluetooth SIG, Inc.  
• Arm® and Cortex® are registered trademark of arm Limited (or its subsidiaries) in the EU and other countries.  
• All other company and product names are the trademarks or registered trademarks of the respective companies  
1/14  
FEDK71521-02  
MK71521/MK71521A  
● Lineup  
Certified  
product name  
32.768kHz  
crystal oscillator  
Official product name  
MK71521-NNNYEZ05B  
MK71521A-NNNYEZ05B  
Flash code  
Blank  
Remarks  
T&Rpacking  
(500 pieces)  
T&Rpacking  
(500 pieces)  
MK71521  
MK71521  
Equipped  
Blank  
Not equipped  
■ Block Diagram  
ANTENNA  
DCDC  
LC Filter  
ANT  
DCO  
DCC  
DEC4  
SWDCLK  
SWDIO  
P0.02 to P0.31  
30  
Filter  
Bluetooth® low energy LSI  
nRF52832  
RFIO  
ANT  
VBAT  
XC2  
XL2  
XL1  
XC1  
XL2/P0.01  
XL1/P0.00  
X’tal  
32MHz  
X’tal  
32.768kHz (※)  
MK71521/MK71521A  
（※）MK71521A does not built-in a 32.768kHz crystal oscillator.  
2/14  
FEDK71521-02  
MK71521/MK71521A  
■ Pin Layout  
1
2
N.C.  
N.C.  
3
ANT  
GND  
GND  
42  
11  
4
35  
RFIO  
GND  
36  
43  
5
12  
P0.23  
GND  
GND  
P0.24  
53  
44  
GND  
13  
P0.22  
SWDCLK  
45  
6
14  
37  
P0.25  
GND  
P0.20  
SWDIO  
7
15  
46  
38  
DCO  
GND  
P0.21  
P0.18  
16  
47  
P0.26  
P0.19  
8
17  
P0.27  
48  
P0.17  
39  
P0.14  
54  
P0.28  
GND  
9
18  
49  
40  
P0.30  
P0.16  
P0.29  
P0.12  
19  
P0.31  
20  
50  
P0.15  
51  
10  
41  
GND  
P0.11  
P0.13  
29  
30  
31  
32  
33  
34  
VBAT  
21  
GND  
52  
GND  
22  
23  
24  
25  
26  
27  
28  
TOP VIEW  
3/14  
FEDK71521-02  
MK71521/MK71521A  
■ List of Pins  
Description  
Pin  
Symbol  
Function  
Attribute/value  
at reset  
1
2
N.C.  
N.C.  
Not Connected  
Not Connected  
Not Connected pin  
Not Connected pin  
-
-
Internal antenna port. It should be connected to PAD 35(RF  
IO) for normal operation.  
3
ANT  
Antenna In/Out  
-
4
5
6
GND  
P0.24  
GND  
Ground  
Digital I/O  
Ground  
Ground PAD  
General purpose I/O  
Ground PAD  
-
Input  
-
Test pin(DC/DC converter output )  
Be sure to use this pin open.  
General purpose I/O  
7
8
DCO  
Power  
-
Digital I/O  
Analog Input  
P0.28  
Input  
SAADC/COMP/LCOMP Input(AIN4)  
Digital I/O  
Analog Input  
Power  
General purpose I/O  
SAADC/COMP/LCOMP Input(AIN5)  
Power supply PAD  
9
P0.29  
VBAT  
Input  
10  
-
11  
12  
13  
14  
15  
16  
17  
GND  
Ground  
Ground PAD  
-
P0.23  
P0.22  
P0.25  
GND  
P0.26  
P0.27  
Digital I/O  
Digital I/O  
Digital I/O  
Ground  
Digital I/O  
Digital I/O  
Digital I/O  
Analog Input  
Digital I/O  
Analog Input  
Input  
Input  
Input  
General purpose I/O  
"General purpose I/O  
General purpose I/O  
Ground PAD  
General purpose I/O  
General purpose I/O  
"General purpose I/O  
SAADC/COMP/LCOMP Input(AIN6)  
General purpose I/O  
SAADC/COMP/LCOMP Input(AIN7)  
-
Input  
Input  
18  
19  
P0.30  
P0.31  
Input  
Input  
20  
21  
22  
GND  
GND  
P0.06  
Ground  
Ground  
Digital I/O  
Digital I/O  
Analog Input  
Ground PAD  
Ground PAD  
General purpose I/O  
-
-
Input  
General purpose I/O  
23  
P0.04  
Input  
SAADC/COMP/LCOMP Input(AIN2)  
MK71521: Test Monitor pin:Connection for 32.768 kHz crystal  
(LFXO)Be sure to use this pin open.  
MK71521A:"General purpose I/O  
MK71521:Test Monitor pin:Connection for 32.768 kHz crystal  
(LFXO)Be sure to use this pin open.  
MK71521A:"General purpose I/O  
"General purpose I/O  
General purpose I/O  
NFC antenna connection(NFC1)  
General purpose I/O  
NFC antenna connection(NFC2)  
General purpose I/O  
XL1  
Analog input  
Digital I/O  
-
Input  
-
24  
P0.00  
XL2  
Analog input  
25  
P0.01  
P0.08  
Digital I/O  
Digital I/O  
Digital I/O  
NFC Input  
Digital I/O  
NFC Input  
Digital I/O  
Analog Input  
Digital I/O  
Analog Input  
Input  
Input  
26  
27  
P0.09  
P0.10  
P0.03  
P0.02  
Input  
Input  
Input  
Input  
28  
29  
30  
SAADC/COMP/LCOMP Input(AIN1)  
General purpose I/O  
SAADC/COMP/LCOMP Input(AIN0)  
31  
32  
GND  
GND  
Ground  
Ground  
Digital I/O  
Analog Input  
Digital I/O  
Ground PAD  
Ground PAD  
General purpose I/O  
SAADC/COMP/LCOMP Input(AIN3)  
"General purpose I/O  
-
-
33  
P0.05  
Input  
34  
35  
P0.07  
RFIO  
Input  
RF In/Out  
Single-ended radio antenna connection  
-
36  
37  
38  
39  
40  
41  
42  
GND  
Ground  
Ground PAD  
-
P0.20  
P0.18  
P0.14  
P0.12  
P0.11  
GND  
Digital I/O  
Digital I/O  
Digital I/O  
Digital I/O  
Digital I/O  
Ground  
Input  
Input  
Input  
Input  
Input  
General purpose I/O  
General purpose I/O  
General purpose I/O  
General purpose I/O  
General purpose I/O  
Ground PAD  
-
4/14  
FEDK71521-02  
MK71521/MK71521A  
Description  
Pin  
Symbol  
GND  
Function  
Ground  
Attribute/value  
at reset  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
Ground PAD  
-
Pull-down  
Pull-up  
Input  
Input  
Input  
Input  
Input  
Input  
SWDCLK Digital input  
Serial Wire Debug clock for Programming and debug  
Serial Wire Debug I/O for Programming and debug  
General purpose I/O  
SWDIO  
P0.21  
P0.19  
P0.17  
P0.16  
P0.15  
P0.13  
GND  
Digital I/O  
Digital I/O  
Digital I/O  
Digital I/O  
Digital I/O  
Digital I/O  
Digital I/O  
Ground  
General purpose I/O  
General purpose I/O  
General purpose I/O  
General purpose I/O  
General purpose I/O  
Ground PAD  
-
-
-
53  
54  
GND  
GND  
Ground  
Ground  
Ground PAD  
Ground PAD  
(*)GND=0V  
■ Electrical Characteristics  
The values in the columns described below as standard indicate typical center values. It is not a guaranteed value that takes  
into account variations.  
● Absolute Maximum Ratings  
Min  
-0.3  
Max  
3.9  
Unit  
V
Item  
Symbol  
VBAT  
Condition  
–
Power supply voltage  
GND  
VIN  
–
-
0
VBAT+0.3  
3.9  
V
V
VBAT ≤ 3.6V  
-0.3  
-0.3  
-
Input voltage  
VBAT >3.6V  
V
Input power  
RFIO  
INFC1/2  
Tstg  
–
–
–
10  
dBm  
mA  
°C  
NFC antenna pin current  
Storage temperature  
80  
-40  
85  
Write/erace  
cycles  
Flash memory endurance  
(*)GND=0V  
－
–
10000  
-
● Recommended Operating Conditions  
Condition  
Item  
Symbol  
VBAT  
Min.  
Standard  
Max.  
Unit  
V
－
Power supply voltage  
1.70  
3.00  
3.60  
Supply rise time  
(0V to 1.7V) *1  
－
Power supply rise time  
tR_VBAT  
Ta  
-
-
60  
ms  
°C  
Operating temperature  
(*)GND=0V  
-40  
+25  
+85  
*1 If the power supply rise time (tR_VBAT) is exceeded, the power-on reset circuit in the nRF52832 may not operate properly.  
Also, when turning on the power after turning off the power, be sure to drop it to 0.3V or less before starting up.  
5/14  
FEDK71521-02  
MK71521/MK71521A  
● Current consumption  
(Ta=25℃)  
Item  
Symbol  
Condition  
Min.  
―
Standard  
5.4  
Max.  
―
Unit  
mA  
mA  
IRX_1Mbps  
IRX_2Mbps  
RX only run current (1Mbps)  
RX only run current (2Mbps)  
Current consumption  
of RX  
―
5.8  
―
Bluetooth Low Energy mode  
(1Mbps)  
IRADIO_RX1Mbps  
―
6.5  
―
mA  
ITX_0dBm  
ITX_4dBm  
TX only run current (0dBm)  
TX only run current (+4dBm)  
―
―
5.3  
7.5  
―
―
mA  
mA  
Current consumption  
of TX  
Bluetooth Low Energy mode  
(0dBm)  
IRADIO_TX0dBm  
―
7.1  
―
mA  
IOFF  
IRAM  
ION  
System Off,No RAM Retention  
System Off,64kB RAM Retention  
System On,No RAM Retention  
―
―
―
0.3  
0.7  
1.2  
―
―
―
uA  
uA  
uA  
Current consumption  
at low power  
(*) VBAT=3.0V、GND=0V  
● DC Characteristics  
(Ta=25℃)  
Item  
Symbol  
VIH  
Condition  
Min.  
Standard  
Max.  
Unit  
High-level input  
voltage  
VBAT  
X0.7  
－
―
VBAT  
V
V
V
V
Low-level input  
voltage  
VBAT  
X0.3  
VIL  
VOH  
VOL  
－
GND  
―
―
―
High-level output  
voltage  
VBAT  
- 0.4  
IOH=5mA  
IOL=5mA  
VBAT  
Low-level output  
voltage  
GND  
+0.4  
GND  
(*) VBAT=3.0V、GND=0V  
(*)The target pin is a digital input / digital output pin  
● RF Characteristics  
(Ta=25℃)  
Item  
Symbol  
fOP  
Condition  
Min.  
Standard  
Max.  
Unit  
Transmitter  
Operating frequencies  
－
2402  
－
2480  
MHz  
kHz  
fDELTA,BLE,1  
Frequency deviation  
Frequency deviation  
BLE 1Msps  
－
±250  
－
M
fDELTA,BLE,2  
M
BLE 2 Msps  
－
－
±500  
－
－
kHz  
Maximum output  
power  
PRF  
－
4
dBm  
RF power control  
range  
PRFC  
－
－
－
－
24  
－
dB  
dB  
RF power accuracy  
Receiver  
PRFCR  
－
±4  
Maximum received  
signal strength  
PRX,MAX  
at < 0.1% BER  
－
－
－
0
－
－
－
dBm  
dBm  
dBm  
PSENS,IT,SP, 1Msps BLE ideal transmitter,  
1M,BLE <=37 bytes BER=0.1%  
PSENS,IT,SP, 2Msps BLE ideal transmitter,  
2M,BLE <=37 bytes BER=0.1%  
-96  
-93  
Receiver Sensitivity  
(*) VBAT=3.0V、GND=0V  
6/14  
FEDK71521-02  
MK71521/MK71521A  
■ Module Dimension  
Remarks for Mounting the Surface Mount Type Package  
Surface mount type package is very sensitive affected by heating from reflow process, humidity during storage.  
Therefore, before you perform reflow mounting, contact sales office for the product name, package name, pin number, package  
code and desired mounting conditions (reflow method, temperature and times) and storage environment.  
7/14  
FEDK71521-02  
MK71521/MK71521A  
■ Examples of Application Circuit  
MK71521/MK71521A  
30  
29  
23  
33  
22  
34  
26  
27  
28  
41  
40  
51  
39  
50  
49  
48  
38  
47  
37  
46  
13  
12  
5
P0.02  
P0.03  
P0.04  
P0.05  
P0.06  
P0.07  
P0.08  
P0.09  
P0.10  
P0.11  
P0.12  
P0.13  
P0.14  
P0.15  
P0.16  
P0.17  
P0.18  
P0.19  
P0.20  
P0.21  
P0.22  
P0.23  
P0.24  
P0.25  
P0.26  
P0.27  
P0.28  
P0.29  
P0.30  
P0.31  
0Ω  
3
ANT  
35  
RFIO  
10  
VBAT  
Power supply  
7
DCO  
45  
44  
SWDIO  
SWD Debug port  
SWDCLK  
Reset  
14  
16  
17  
8
1
2
N.C.  
N.C.  
9
18  
19  
24  
25  
XL1/P0.00  
XL2/P0.01  
GND  
4,6,11,15,20,21,31,32,36,42,43  
,52,53,54  
・Unused pins should be "N.C. "pin.  
8/14  
FEDK71521-02  
MK71521/MK71521A  
■ Appendix  
● Radio Certification  
MIC JAPAN（certification no：006-000798[MK71521] /006-000800[MK71521A]）  
MK71521/MK71521A complies with MIC JAPAN radio certification.  
FCC（FCC ID: 2ACIJ71521）  
This device complies with Part 15 of the FCC Rules.  
Operation is subject to the following two conditions:  
(1)this device may not cause harmful interference, and (2)this device must accept any interference received, including  
interference that may cause undesired operation.  
The regulatory label on the final system must include the statement: “Contains FCC ID: 2ACIJ71521" or using electronic  
labeling method as documented in KDB 784748.  
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.  
The antenna used for this transmitter must not be collocated or operating in conjunction with any other antenna or transmitter  
within a host device, except in accordance with FCC multi-transmitter product procedures.  
The final system integrator must ensure there is no instruction provided in the user manual or customer documentation  
indicating how to install or remove the transmitter module except such device has implemented two-ways authentication  
between module and the host system.  
OEM Responsibilities to comply with FCC Regulations  
This module has been certified for integration into products only by OEM integrators under the following condition:  
- The transmitter module must not be colocated or operating in conjunction with any other antenna or transmitter.  
As long as the conditions above are met, further transmitter testing will not be required. However, the OEM integrator is still  
responsible for testing their end-product for any additional compliance requirements required with this module installed (for  
example, digital device emissions, PC peripheral requirements, etc.).  
IMPORTANT NOTE:  
In the event that any of these conditions can not be met (for example the reference trace specified in this manual, or use of a  
different antenna), then the FCC authorizatione is no longer considered valid and the FCC ID can not be used on the final  
product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the  
transmitter) and obtaining a separate FCC authorization.  
Changes or modification not expressly approved by the party responsible for compliance could void the user’s authority to  
operate the equipment.  
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15  
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential  
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in  
accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee  
that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or  
television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the  
interference by one or more of the following measures:  
— Reorient or relocate the receiving antenna.  
— Increase the separation between the equipment and receiver.  
— Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.  
— Consult the dealer or an experienced radio/TV technician for help.  
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FEDK71521-02  
MK71521/MK71521A  
ISED（IC: 20971-71521）  
This device complies with ISED(Innovation, Science and Economic Development Canada)’s licence-exempt RSSs.  
Operation is subject to the following two conditions:  
(1) This device may not cause interference; and  
(2) This device must accept any interference, including interference that may cause undesired operation of the device.  
Le présent appareil est conforme aux CNR d’ ISED(Innovation, Science and Economic Development Canada) applicables  
aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes :  
(1) l’appareil ne doit pas produire de brouillage;  
(2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en  
compromettre le fonctionnement.  
The regulatory label on the final system must include the statement: “Contains IC: 20971-71521".  
Due to the model size the IC identifier is displayed in this manual only and can not be displayed on the modules label due to  
the limited size.  
CE（RED）  
MK71521/MK71521A complies with the radio test requirements (EN 300 328 V2.2.2) ,which is based on the RE Directive.  
EMC and Safety test that is required for the CE marking should be done in the final end-product.  
● Bluetooth® Qualification (RF-PHY)  
MK71521/MK71521A is listed on the Bluetooth SIG website as qualified RF-PHY Component.  
（Declaration ID：D049595、QDID：146740）  
When selling the final product using this module, please perform End Product Listing of customer product based on the  
certification of this module and certification of Nordic softDevice.  
■ Note  
・When mounting this product on the double-sided board, do not mount it on the initial mounting side.  
(Reflow on the other side from the module mounting side is prohibited.)  
・Due to its material characteristic, the sealed case may change color. However, this does not affect the product performance  
and its quality.  
・Please contact a ROHM sales office for guidelines on board design.  
■ Related Documents  
The following related documents are available and should be referenced as needed.  
＜nRF52832 related documents＞  
・nRF52832_Product Specification （https://infocenter.nordicsemi.com/pdf/nRF52832_PS_v1.4.pdf）  
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■ Revision History  
Page  
Previous Current  
Document  
Date  
Description  
No.  
Edition  
Edition  
FEDK71521-01  
Apr 9,2020  
－
－
1st edition.  
Updated pin description in pin list.  
FEDK71521-02  
May 20,2020  
4-5  
4-5  
(added description of AIN0-AIN7/NFC1/NFC2)  
11/14  
FEDK71521-02  
MK71521/MK71521A  
Notes  
Precautions for the Specification  
1) Contents of the Specification are the information at the time of their issuance. The information contained herein is subject  
to change without notice.  
2) LAPIS Semiconductor has used reasonable care in preparing the information included in the Specification, but LAPIS  
Semiconductor does not warrant that such information is error free. LAPIS Semiconductor assumes no liability whatsoever  
for any damages incurred by you resulting from errors in or omissions from the information included herein.  
3) The technical information specified herein is intended only to show the typical functions of the Products and examples of  
application circuits for the Products. No license, expressly or implied, is granted hereby under any intellectual property  
rights or other rights of LAPIS Semiconductor or any third party with respect to the information contained in this  
document; therefore LAPIS Semiconductor shall have no responsibility whatsoever for any dispute, concerning such rights  
owned by third parties, arising out of the use of such technical information.  
4) The Specification contains information related to the LAPIS Semiconductor’s copyright and technical know-how. Any use  
of them other than pertaining to the usage of appropriate products is not permitted. Further, the Specification, in part or in  
whole, may not be reprinted or reproduced and disclosed to third parties without prior consent of LAPIS Semiconductor.  
Precautions for the Products  
●Precautions for Safety  
1) The Products are designed and produced for application in ordinary electronic equipment (AV equipment, OA equipment,  
telecommunication equipment, home appliances, amusement equipment, etc.).  
2) For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact and  
consult with a LAPIS Semiconductor representative: transportation equipment (i.e. cars, ships, trains), primary  
communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and  
power transmission systems.  
3) Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power  
control systems, and submarine repeaters.  
4) The Products are designed for use in a standard environment and not in any special environments.  
Application of the Products in a special environment can deteriorate product performance. Accordingly, verification and  
confirmation of product performance, prior to use, is recommended if used under the following conditions:  
[a] Use in various types of liquid, including water, oils, chemicals, and organic solvents  
[b] Use outdoors where the Products are exposed to direct sunlight, or in dusty places  
[c] Use in places where the Products are exposed to sea winds or corrosive gases, including  
Cl2, H2S, NH3, SO2, and NO2  
[d] Use in places where the Products are exposed to static electricity or electromagnetic waves  
[e] Use in environment subject to strong vibration and impact.  
[f] Use in proximity to heat-producing components, plastic cords, or other flammable items  
[g] Use involving sealing or coating the Products with resin or other coating materials  
[h] Use of the Products in places subject to dew condensation  
[i ] Use in an environment where the temperature is always low, such as in a freezer  
5) The Products might receive the radio wave interference from electronic devices such as Wireless LAN devices, Bluetooth  
devices, digital cordless telephone, and microwave oven and so on that radiate electromagnetic wave.  
6) The Products are not radiation resistant.  
7) Verification and confirmation of performance characteristics of Products, after on-board mounting, is advised.  
8) Confirm that operation temperature is within the specified range described in the Specification.  
12/14  
FEDK71521-02  
MK71521/MK71521A  
9) Although LAPIS Semiconductor is continuously working to improve product reliability and quality, semiconductors can  
break down and malfunction due to various factors. Therefore, if product malfunctions may result in serious damage,  
including that to human life, sufficient fail-safe measures must be taken, including the following:  
[a] Installation of protection circuits or other protective devices to improve system safety  
[b] Installation of redundant circuits in the case of single-circuit failure  
10) Failure induced under deviant condition from what defined in the Specification cannot be guaranteed.  
11) This product is a specification to radiate the radio wave. It is necessary to acquire the attestation of decided Radio Law of  
each region used to use the equipment that radiates the radio wave.  
Please inquire about the attestation of Radio Law that this product acquires.  
12) When product safety related problems arises, please immediately inform to LAPIS Semiconductor, and consider technical  
counter measure.  
●Precautions for Reference Circuits  
1) If change is made to the constant of an external circuit, allow a sufficient margin due to variations of the characteristics of  
the Products and external components, including transient characteristics, as well as static characteristics.  
2) The reference circuit examples, their constants, and other types of information contained herein are applicable only when  
the Products are used in accordance with standard methods. Therefore, if mass production is intended, sufficient  
consideration to external conditions must be made.  
● Precaution for Electrostatic  
This product is Electrostatic sensitive product, which may be damaged due to Electrostatic discharge. Please take proper  
caution during manufacturing and storing so that voltage exceeding Product maximum rating won't be applied to the Products.  
Please take special care under dry condition (Grounding of human body / equipment / solder iron, isolation from charged  
objects, setting of Ionizer, friction prevention and temperature / humidity control etc.)  
● Precautions for Storage / Transportation  
1) Product performance and connector mating may deteriorate if the Products are stored in the following places:  
[a] Where the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2 and NO2  
[b] Where the temperature or humidity exceeds those recommended by LAPIS Semiconductor  
Temperature: 5°C to 40°C, Humidity 40% to 60%  
[c] Storage in direct sunshine or condensation.  
[d] Storage in high Electrostatic.  
2) Even under LAPIS Semiconductor recommended storage condition, connector mating, mountability, and heat resistance  
of products over 1 year old may be degraded.  
3) Store / transport cartons in the correct direction, which is indicated on a carton as a symbol, otherwise bent leads may occur  
due to excessive stress applied when dropping of a carton.  
● Precaution for Product Label  
QR code printed on LAPIS Semiconductor product label is only for internal use, and please do not use at customer site.  
It might contain internal products information that is inconsistent with product information.  
● Precaution for Disposition  
When disposing products , please dispose them properly with an industry waste company.  
● Prohibition Regarding Intellectual Property  
LAPIS Semiconductor prohibits the purchaser of the Products to exercise or use the intellectual property rights, industrial  
property rights, or any other rights that either belong to or are controlled by LAPIS Semiconductor, other than the right to use,  
sell, or dispose of the Products.  
13/14  
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MK71521/MK71521A  
● The other precautions  
1) Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS  
Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. LAPIS Semiconductor  
shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations.  
2) When providing our Products and technologies contained in the Specification to other countries, you must abide by the  
procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US  
Export Administration Regulations and the Foreign Exchange and Foreign Trade Act.  
Copyright 2020 LAPIS Semiconductor Co., Ltd.  
2-4-8 Shinyokohama, Kouhoku-ku,  
Yokohama 222-8575, Japan  
http://www.lapis-semi.com/en/  
14/14  

相关型号：

MK71521A-NNN

 蓝碧石科技的“MK71511(A)”和“MK71521(A)”是支持Bluetooth 5的Bluetooth low energy单模无线模块。 “MK71511(A)”内置Nordic公司的nRF52811，“MK71521(A)”内置Nordic公司的nRF52832。“MK71511(A)”和“MK71521(A)”支持2Mbps高速传输（Bluetooth 5标准的特点之一）和提高通知数据容量（扩展广告），与Bluetooth 4标准相比，数据通信时间仅为一半，可处理通知数据容量高达8倍。而且，“MK71511(A)”还内置远距离传输功能，通信距离延长至以往Bluetooth的4倍，因此，不仅非常适用于室内应用，还非常适用于户外应用。不仅如此，还内置方向检测功能，因此还可以应用于可高精度识别位置的室内定位服务。而“MK71521(A)”则内置了保存程序用的512KB大容量FLASH存储器，非常适用于利用Bluetooth构建网状网络和各种应用产品的开发。此外，这两种产品具有相同的形状，而且引脚兼容，可以轻松替换，还可以安装在便宜的2层电路板上，有助于降低制造成本。
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