Espressif Systems ESP8684 Ultra Low Power SoCs
Espressif Systems ESP8684 Ultra Low Power SoCs supply a highly-integrated MCU-based SoC solution. The ESP8684 supports 2.4GHz Wi-Fi® and BLUETOOTH® Low Energy (Bluetooth LE). The ESP8684 SoCs provide a 32bit RISCV singlecore processor with a four-stage pipeline that operates up to 120MHz. The device's storage capacity is ensured by 272KB of SRAM (16KB for cache) and 576KB of ROM on the chip.
Features
- WiFi
- IEEE 802.11 b/g/n-compliant
- Supports 20MHz bandwidth in 2.4GHz band
- 1T1R mode with data rate up to 72.2Mbps
- Wi-Fi Multimedia (WMM)
- TX/RX A-MPDU, TX/RX A-MSDU
- Immediate Block ACK
- Fragmentation and defragmentation
- Transmit opportunity (TXOP)
- Automatic Beacon monitoring (hardware TSF)
- 3 × virtual Wi-Fi interfaces
- Simultaneous support for Infrastructure BSS in Station mode, SoftAP mode, Station + SoftAP mode, and promiscuous mode
- Antenna diversity
- Supports external power amplifier
- BLUETOOTH®
- Bluetooth LE: Bluetooth 5
- High power mode 20dBm
- Speed: 125kbps, 500kbps, 1Mbps, 2Mbps
- Advertising extensions
- Multiple advertisement sets
- Channel selection algorithm #2
- Internal co-existence mechanism between Wi-Fi and Bluetooth to share the same antenna
- CPU and Memory
- 32-bit RISC-V single-core processor, up to 120MHz
- CoreMark® score
- Cryptographic hardware acceleration:
- ECC
- 1 core at 120MHz: 305.42CoreMark; 2.55CoreMark/M
- 576KB ROM
- 272KB SRAM (16KB for cache)
- SiP flash (see details in Chapter 1 ESP8684 Series Comparison)
- Access to flash accelerated by cache
- Supports flash in-Circuit Programming (ICP)
- Advanced Peripheral Interfaces
- 14 × programmable GPIOs
- Digital interfaces:
- 3 × SPI
- 2 × UART
- 1 × I2C Master
- LED PWM controller, with up to 6 channels
- General DMA controller (GDMA), with 1 transmit channel and 1 receive channel
- Analog interfaces:
- 1 × 12-bit SAR ADC, up to 5 channels
- 1 × temperature sensor
- Timers:
- 1 × 54-bit general-purpose timer
- 2 × watchdog timers
- 1 × 52-bit system timer
- Low Power Management
- Power Management Unit with four power modes
- Security
- Secure boot
- Flash encryption
- 1024-bit OTP, up to 256 bits for use
- SHA Accelerator (FIPS PUB 180-4)
- Random Number Generator (RNG)
Applications
- Smart Home
- Light control
- Smart button
- Smart plug
- Indoor positioning
- Industrial Automation
- Industrial robot
- Industrial field bus
- Consumer Electronics
- Smart watch and bracelet
- Over-the-top (OTT) devices
- Logger toys and proximity sensing toys
- Health Care
- Health monitor
- Baby monitor
- Smart Agriculture
- Smart greenhouse
- Smart irrigation
- Agriculture robot
- Retail and Catering
- POS machines
- Service robot
- Generic low-power IoT sensor hubs
- Generic low-power iot data loggers
Associated Dev Kit
Espressif Systems ESP8684-DevKitM-1 Development Kit
An entry-level development board based on ESP8684-MINI-1 with 1MB/2MB/4MB SPI flash.
Block Diagram
Published: 2022-06-16
| Updated: 2022-06-24