The OM6621Ex is a power-optimized true system-on-chip (SOC) solution for both Bluetooth low energy and proprietary 2.4GHz applications. It integrates a high performance and low power RF transceiver with Bluetooth base band and rich peripheral IO extension. OM6621Ex also integrates power management unit (PMU) to provide high-efficient power management. It targets 2.4GHz Bluetooth low energy systems, proprietary 2.4GHz systems, Human-Interface Devices (keyboard, mouse, and remote control), sports and leisure equipment, mobile phone accessories and consumer electronics.
OM6621Ex on-chip Bluetooth system compliant with version 5.1, supports all Bluetooth standard 4.2 feature.
The chip integrates up to 64MHz high-performance MCU, DMA, GPIO, SPI, UART, Timer, Watchdog, supports 32MHz external crystal, integrates multi-purpose max 12-bit ADC.
The OM6621Ex integrates on chip 40K SRAM, 256-bit EFUSE and supports user defined IDE system on chip SFLASH MCU development and JTAG software upgrade.
RF transceiver
• -97dBm sensitivity @ 1Mbps GFSK
• -94dBm sensitivity @ 2Mbps GFSK
• TX Power -20 to +7dBm
• AGC (Auto Gain Control)
• RSSI (1dB Resolution)
CPU
• ARM® Cortex™-M4, max 64MHz
Memory
• EFUSE: 256-bit
• SRAM: 40KB
• Serial Flash
• OM6621EM: 512KB
• OM6621ED: 256KB
• I-Cache RAM: 4KB
Clocks
• 32MHz crystal, 32MHz RC, 32KHz RC
Link Controller
• BT 5.1 LE PHY, link controller
• Proprietary 2.4-GHz link controller
Power Management
• Single power supply voltage: 1.8V ~ 3.6V
• 4.9mA peak current in RX
• 4.9mA peak current in TX (0dBm)
• 1.2uA in sleep mode (no RAM retention, wakeup by GPIO)
• 1.8uA in sleep mode (with 40K RAM retention, wakeup by GPIO)
• 2.9uA in sleep mode (with 40K RAM retention, RC32K on)
• Integrated DCDC BUCK Converter(for OM6621EM only)
Software
• Compliant with BLE version 5.1
• Supported data rates: 1Mbps, 2Mbps
• Sample applications and profiles
• Supports OTA
• SWD interface
Peripherals
• OM6621EM: up to 23 General Purpose I/O
• OM6621ED: up to 16 General Purpose I/O
• 4 x DMA
• 2 x UART
• 1 x I2S interface
• 1 x I2C interface
• QSPI Flash Controller
• 1 x 16-bit Advanced Timer,1 x 16-bit 1 channel PWM Timer,1 x 16-bit 4 channels PWM Timer
• Watchdog
• 8 channel single-end max 12-bit GPADC, up to 500Ksps (precision and sample rate can be configured)
• Audio ADC
• 16-bit ADC
• support PDM, IIS
• SNR 93dB (A-weighted)
• 1 x DMIC (Digital Mic)
• 1 x AMIC (Analog Mic)
• Embedded IR Transmitter and Receiver
Security
• AES HW encryption (Integrated in the Bluetooth module)
• Support AES-128 key
• Support encryption mode
• HW Random Number Generator
Package and Work Environment
• OM6621EM: 32-pin 4x4mm, 0.4mm pitch QFN32
• OM6621ED: 24-pin 4x4m, 0.5mm pitch QFN24
• -40 ℃ ~ +85 ℃
The OM6621Ex integrated circuit has a fully integrated radio transceiver and base band processor for Bluetooth® Smart. It can be used as an application processor as well as a data pump in fully hosted systems.
- BT VersionBLE 5.1
- CoreM4
- Max Speed64MHz
- SRAM40KB
- Flash512KB
- PackagesQFN32 4*4mm
- Supply Voltage1.8V - 3.6V
