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

Espressif Systems ESP8684 Ultra Low Power SoCs

Features

Applications

Block Diagram

husseinkey ELECTRONICS®

COMPANY

Espressif Systems ESP8684 Ultra ­Low­ Power SoCs

Features

Applications

Block Diagram

husseinkey ELECTRONICS®

COMPANY

Espressif Systems ESP8684 Ultra Low Power SoCs