The RTL8752CJ / RTL8752CJF (hereafter referred to as the RTL8752C except where differences exist) is an ultra-low-power system on-chip solution for Bluetooth 4.2 low energy applications that combines the excellent performance of a leading RF transceiver with a low-power ARM Cortex-M4F and rich powerful supporting features and peripherals.
The RTL8752C supports an analog MIC interface that integrates a sigma-delta ADC, programmable gain amplifier, 5-Band equalizer and microphone bias circuit for voice command application. The RTL8752C embeds IR transceiver, hardware key-scan, and Quad-decoder on a single IC, and is provided in a QFN package.
General
Ultra low power consumption with intelligent PMU
Supports Bluetooth 4.2 core specification
Additional Adv channel
Channel Selection #2
High Duty Cycle Non-Connectable Adv
Integrated MCU to execute Bluetooth protocol stack
Supports multiple level Low Energy states
Supports LE L2CAP Connection Oriented Channel Support
Supports LE low duty directed advertising
Supports LE data length extension feature
Supports OTA (Over-the-Air) programming mechanism for firmware upgrade
Supports GAP, ATT/GATT, SMP, L2CAP
Generic Applications for GAP Central, Peripheral, Observer and Broadcaster Roles
Platform
ARM Cortex-M4 with floating-point unit (Maximum 20MHz)
Serial flash controller (One and Qual-bits mode) with 16kB 4-way cache.
Total 160kB SRAM
4Kbits eFUSE for manufacturer use
Supports AES128/192/256 encrypt/decrypt engine
Embedded 2Mbits flash (RTL8752CJF)
Bluetooth Transceiver
RX sensitivity: -97dBm BLE (min)
TX output power: +4dBm (max)
Fast AGC control to improve receiving dynamic range
Supports Bluetooth Low Energy PHY
Peripheral Interfaces
Flexible General Purpose IOs
RTL8752CJ: 24GPIOs (max)
RTL8752CJF: 26GPIOs (max)
Hardware Keyscan and Quad-decoder
Embedded IR transceiver
Real-Time Counters (RTC)
Supports generic 4-wire SPI master/slave (max clock rate: 10MHz)
Supports 8 channel Low power comparator
400ksps, 12bit, 8-channel AUXADC
Timers x 8
I2C x 2
PWM x 8
UART x 2
Supports external 40MHz XTAL without capacitor (in limited condition)
Supports external 32.768kHz XTAL without capacitor (in limited condition)
Supports embedded internal 32K RCOSC to keep BLE link (in limited condition)
Embedded PGA and audio ADC with 5-band EQ for analog MIC interface
Package
RTL8752CJ: 40-pin 5x5mm QFN
RTL8752CJF: 40-pin 5x5mm QFN
TV Remote Controller
LE HID
Beacon
Home Automation
Key Fob
Wristband
Wearable Device
Toy