HS6621 supports the complete BLE5.0 protocol. HS6621 not only supports 1Mbps data rate, but also supports 2Mbps data rate in high-speed mode and 125Kbps and 500Kbps data rate in long-distance mode. It supports long packet mode of broadcast packets and expansion of broadcast channels; therefore, the new generation of products can bring users It achieves 2 times the data transmission rate, 4 times the communication distance expansion, and 8 times the broadcast data capacity. Of course, our HS6621 also supports the private 2.4G communication protocol, which can make it easier for users to develop dual-mode products.
HS6621 has a powerful core, ARM® Cortex™-M4F. The core supports a maximum main frequency of up to 144MHz; the chip's SRAM resource reaches 256KB, has a built-in 1MB SPI Flash, and supports external large-capacity SPI Flash. The powerful MCU and abundant storage resources of HS6621 provide customers with a broader space for imagination to develop products with richer functions and better performance. Currently, customers are using Bluetooth fingerprint lock applications to store 100 fingerprints with a resolution of 192*192, which can complete fingerprint detection in hundreds of milliseconds. The performance even exceeds similar products from major foreign manufacturers. With the Bluetooth function, HS6621 is used in Bluetooth fingerprint locks. Very cost-effective.
The performance of HS6621 has been further improved. The chip adopts advanced 40nm ULP process and supports -20dBm~+8dBm transmit power, which is 6dBm higher than the maximum transmit power of the previous generation product; the receiving sensitivity in 1Mbps mode is -96dBm, reaching the level of world-class brand manufacturers; product Internally integrated BUCK DCDC, the transmitter current at 0dBm is 5.5mA, the receiver current is 6.0mA (DC-DC on), and the power consumption in sleep mode is 4uA. Various power consumption indicators have basically reached the level of mass-produced products by major international manufacturers.
HS6621 has rich peripheral interfaces. The chip supports up to 40 GPIOs, and other interfaces such as SPI, UART, I2C, I2S, etc. are also available; it supports up to 8 channels of GPADC with a sampling rate of 1MHz; in addition, the chip integrates a 16bit Audio ADC with a sampling rate of 48KHz. The dynamic range is 95dB and the SNR reaches 93dB; these rich peripheral interfaces expand the application scope of the product and bring more and more flexible choices to customers. In smart watch applications, after company internal testing and customer verification, combined with the product's powerful core and abundant storage resources, the SPI interface of HS6621 has excellent animation 3D rendering effects for screens with resolutions of 360*360 and 454*454. It can achieve first-class UI fluency, and the display effect is not inferior to similar high-end products at home and abroad.
HS6621 integrates multiple personalized circuit modules. The chip integrates a lithium battery charging circuit that supports 100mA and 300mA charging current; it also integrates a capacitance detection circuit; in addition, it also integrates a heart rate monitoring controller. In terms of clock circuit, the product integrates a 32.768KHz RC oscillator circuit and cooperates with the high-precision calibration algorithm to generate a 32.768KHz clock with an accuracy of up to 100ppm, which fully meets the use in various low-speed clock scenarios and avoids the need for an external 32.768Khz crystal. . These built-in circuit function modules greatly reduce the BOM cost when customers develop related products, providing strong support for customers to further improve product competitiveness.