Bluetooth Low Energy Module

Product Summary

ROHM (LAPIS Technology) products are Bluetooth low energy single-mode wireless modules that support Bluetooth 5.

"MK71511(A) / MK71521(A)" is an all-in-one module with built-in peripheral circuits including an antenna. Radio certification has been obtained in Japan, the United States, and Canada, and for Europe, it has passed the latest EN 300 328 V2.2.2 wireless test, allowing evaluation and development to begin immediately. The PHY components for Bluetooth version 5.2 have been obtained and no additional certification testing work will be required.

Product features

・Compatible with the features of the Bluetooth 5 standard, 2 Mbps high-speed transmission and increased notification data capacity (extended advertisement)
・Compared to the Bluetooth 4 standard, it is possible to handle data communication in half the time and up to 8 times more notification data

・MK71511(A)
-Equipped with Nordic's nRF52811
- Equipped with a long-distance transmission function, the communication distance is expanded to 4 times that of conventional Bluetooth.
-Ideal for indoor as well as outdoor applications
-Since it also has a direction detection function, it can be applied to indoor location information services that can identify positions with high accuracy.

・MK71521(A)
-Equipped with Nordic's nRF52832
-Equipped with 512KB large-capacity flash memory for program storage
-Ideal for constructing a mesh network using Bluetooth and developing various applications

Product lineup

Specifications overview

	MK71511	MK71511A	MK71521	MK71521A
module size	9.7 x 13.4 x 2.0mm 54pin SMT (pin compatible)
antenna	pattern antenna
Built-in BLE chip	nRF52811		nRF52832
Core MCU specs	Arm® Cortex®-M4 (64MHz)		Arm® Cortex®-M4F (64MHz)
Flash capacity	192KB		512KB
RAM capacity	24KB		64KB
Maximum output	(+) 4dBm
Receiving sensitivity (1Mbps)	(-)97dBm		(-)96dBm
2M PHYs	〇		〇
Coded PHYs	〇		×
Extended Advertisement	〇		〇
Direction detection function supported	〇		×
Crystal oscillator	32MHz 32.768kHz	32MHz	32MHz 32.768kHz	32MHz
Bluetooth authentication	v5.2 PHY components
QDIDs	146733		146740
Radio certification	MIT/FCC/ISED/CE(RED)

*MK715xxA does not have a low-power clock crystal oscillator

・Module size
- Size: 9.7x13.4mm
- Thickness: 2.0mm
・54 pin surface mount type
・Original pad layout (design registration)
- Easy surface wiring extraction

Adoption example

Low-speed, low-power communication ⇒ Suitable for small data communication and battery-powered products
Short-range communication ⇒ Suitable for communication within tens of meters from your surroundings