EM9304
Optimized Bluetooth® 5.0 Low Energy Companion or SoC (not recommended for new design. For new design, please visite EM9305 (link to the EM9305 page).
The EM9304 is a compact, low-power Bluetooth® 5.0 IC offering versatile use as a companion IC or SoC. It supports up to 8 connections, advanced algorithms, and efficient power management, with a minimal PCB footprint, robust connectivity, and extensive developer support.
Redefining Connectivity and Efficiency
Engineered for flexibility, performance, and energy efficiency, the EM9304 delivers state-of-the-art Bluetooth® 5.0 technology in a compact, cost-effective design for IoT and connected applications.
Optimized power management minimizes energy usage across all modes, extending battery life while maintaining high performance for connected applications.
The EM9304’s small PCB footprint, minimal external component requirements, and multiple packaging options make it ideal for cost-sensitive and space-constrained designs.
The EM9304 offers a flexible design that functions as a companion IC or a standalone System-on-Chip (SoC), enabling compatibility with a wide range of ASIC and MCU-based applications.
With Bluetooth 5.0 support, including multiple connections, secure communication, and over-the-air firmware updates, the EM9304 delivers cutting-edge connectivity for modern IoT devices.
Documents
The EM9304 is a compact, low-power Bluetooth® 5.0 IC offering versatile use as a companion IC or SoC. It supports up to 8 connections, advanced algorithms, and efficient power management, with a minimal PCB footprint, robust connectivity, and extensive developer.
Features / Block Diagram
System-on-Chip:
Energy efficient, industry standard, ARC EM4, 32-bit MCU running at 24MHz
Floating-point unit for sensor processing
136kB ROM including link layer and stack
128kB OTP for parameters, profiles, and applications – 24MHz execution speed
48kB instruction RAM and 28kB data RAM
4, 8, or 20kB with selectable data retention
Universal, sleep, and protocol timers
I2C and SPI master interfaces
Up to 12 GPIO
Bluetooth 5.0 Low Energy Technology:
BT 5.0 Controller Subsystem (QD ID 93999)
Bluetooth stack (QD ID 84268) in ROM
SPI and UART HCI/ACI Transport Layers
Up to eight simultaneous connections supported
Extended PDU length and enhanced security
Security Features:
True Random Number Generator
AES-128 Hardware Encryption Engine
Key Generation (ECC-P256)
Firmware Over-the-Air Updating
Per application, function, or configuration
Sophisticated Power Management System:
Digital step-up/down DCDC operation
Supports 1.5V and 3.0V batteries
Scheduler and memory manager
Low frequency RC or crystal oscillator time base
Low Current Consumption at 3V:
- 3.0mA typical peak receiver current
- 5.2mA typical peak transmitter current at 0.4dBm
- 1.0A connected sleep mode
- 5nA chip disable mode
High Performance RF:
-94dBm Bluetooth low energy receiver sensitivity for 1Mpbs operation and 37 byte payload
-34 to +6.1dBm transmitter output power range
Low Component Count and Cost:
3 DC caps, 1 DCDC coil, 1 ferrite bead
Single ended 50Ω antenna pin (no balun)
48MHz XTAL, 32kHz XTAL (optional)
Packaging:
QFN-28 (4x4mm), WLCSP25, and bare-die/wafer
Industrial Operating Temperature Range: -40C to +85C
Customer Support:
Hardware, software development kits
FCC/CE certification support
Forum for hardware and software support
