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BK7235 Highly integrated single-chip Wi Fi 6 (802.11b/g/n/ax) and Bluetooth 5.2/Internet of Things (IoT) applications
Classification:
Product
IC/Optical Lotus
WIFI IC
- Product Description
-
- Commodity name: BK7235 Highly integrated single-chip Wi Fi 6 (802.11b/g/n/ax) and Bluetooth 5.2/Internet of Things (IoT) applications
Overview
BK7235 is a highly integrated single-chip WiFi 6 (802.11b/g/n/ax) and Bluetooth 5.2 combination solution designed for applications that require high security and abundant resources.
The RISC-V MCU, combined with various rich peripheral device interfaces, makes the BK7235 very suitable for a variety of Internet of Things (IoT) application scenarios.
BK7235 adopts advanced design and process technology, providing high integration and low power consumption, suitable for smart lighting, smart homes, and other complex Internet of Things.
feature
Wi-Fi
Compliant with IEEE 802.11b/g/n/ax 1x1 standard
2.4 GHz 20/40 MHz channel bandwidth
• Support downlink multi-user multiple input multiple output (DL MU-MIMO)
• Supports Orthogonal Frequency Division Multiple Access (OFDMA)
• Support target wake-up time (TWT)
TX and RX low-density parity check (LDPC) support extended range
WPA/WPA2/WPA3 Personal supports enhanced security
• Working modes: STA and SoftAP
• SoftAP+STA coexistence
• Transmission power up to+20 dBm
• Reception sensitivity -99 dBm
Bluetooth Low Energy
Bluetooth Low Power 5.2
• Supports Bluetooth low power consumption of 1 Mbps, 2 Mbps, and long-distance (125 kbps and 500 kbps)
• Supported Bluetooth low-power features: LE audio, 2 Mbps, advertising extension, and long-distance
kernel
32-bit RISC-V MCU with a frequency of up to 320 MHz:
- 32 KB ITCM + 32 KB DTCM
-Five level sequential execution pipeline
-Hardware multipliers and dividers
-Branch prediction
-Machine (M) and User (U) privilege levels
-Performance Monitor
-Unaligned memory access
-Physical Memory Protection (PMP), 8 regions
-RISC-V RV32I Basic Integer Instruction Set
-RISC-V "M" Integer Multiplication and Division Standard Extension
-RISC-V "A" Atomic Instruction Standard Extension
-RISC-V "F" standard extension for single precision floating-point
-RISC-V "C" standard extension for compressed instructions
-DSP Expansion
-RISC-V "N" standard extension for user level interrupt and exception handling
-Performance Expansion
-CoDense extension
- 3.57 CoreMark/MHz，1.98 DMIPS/MHz
UART flash download
Serial Wire Debugging (SWD) Interface
memory
• 4 MB SiP flash
• SiP PSRAM: 4 MB or none
512 KB shared SRAM
• 64 KB ROM
• eFuse
safety
Isolation secure element using hardware encryption technology (FIPS 140-2 Level 2 certification)
• Safe startup
Unique ID (UID) and secure storage
• Security updates and anti rollback measures
• Lifecycle management, such as security debugging
Flash encryption
Encryption hardware acceleration:
-Encryption Accelerator: DES, AES-128/192/256, ChaCha20-128/256, SM4-128
-Public key accelerator: ECDSA-P256/P384, RSA-2048/3072, SM2
-Hash: SHA-224/256, SHA-384/512, IASC, Poly1305, SM3-512
-True Random Number Generator (TRNG)
Key Derivative Function (KDF)
Clock management
External oscillators: 26 MHz crystal oscillator (XTALH), 32.768 kHz crystal oscillator (XTALL)
Internal oscillator: 32 kHz ring oscillator (ROSC), 26-360 MHz digitally controlled oscillator (DCO)
• 320/480 MHz PLL (DPLL)
Audio Phase Locked Loop (APLL)
power management
2.8 to 5.0 V VBAT power supply
• on-chip power on reset (POR) and undervoltage detector (BOD)
• Built in DC-DC converter and LDO regulator
Low power consumption:
-Active mode RX: 85 mA
-Active mode TX @ 17 dBm: 230 mA
-Sleep mode: 238 μ A
-Deep sleep mode: 16 μ A
-Off mode: 3.4 μ A
peripheral
26 GPIO
• 1 SPI
2 UARTs: 1 supports Flash download
• 1 I2C
1 CAN controller, supporting CAN FD
One general-purpose DMA controller (GDMA) with 12 channels
• 1 JPEG hardware encoder
• 1 JPEG hardware decoder
One 8-bit CIS DVP interface
10 32-bit PWM channels
13 bit AUX ADC with up to 5 channels
6 32-bit universal timers
2 watchdog timers (WDT)
1 real-time counter (RTC)
• 1 infrared interface
• 1 temperature sensor
1 touch sensor, up to 14 touch sensing I/O
encapsulation
QFN40 package, 5 x 5 mm
• Operating temperature range: -40 to+105 ° C
8613632534755
Address: 12F, Building C, Tongjian Building, Nanyuan Street, Futian District, Shenzhen
