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Chip Overview

CI1324X is a high-performance, low-power, and highly integrated intelligent voice chip developed by Chipintelli for IoT (Internet of Things) applications. The chip integrates Chipintelli’s independently developed Brain Neural Processing Unit BNPU V3.5 and CPU core, with a system main frequency of up to 210MHz, 288KByte SRAM, and a built-in PMU power management unit and RC oscillator. It also features a single-channel high-performance low-power Audio Codec and multiple UART, IIC, PWM, GPIO, and other peripheral control interfaces.

CI1324X adopts industrial-grade design standards, with good environmental reliability, a working temperature range of -40℃ to +85℃, and compliance with MSL3 level humidity, IEC 61000-4-2 4KV contact discharge test standards, RoHS, and REACH environmental standards.

CI1324X uses Chipintelli’s new generation BNPU technology, which supports DNN, TDNN, RNN, CNN, and other neural networks, as well as parallel vector operations, enabling high-performance voice recognition, voice noise reduction, and other functions, with strong environmental noise suppression capabilities. CI1324X also supports multiple languages, including Chinese, English, and Japanese, and can be widely used in home appliances, lighting, toys, wearable devices, industrial, automotive, and other product fields, realizing voice interaction and control, as well as various intelligent voice solution applications.

Please click to download the complete chip datasheet: CI13242 Datasheet

Table G-1 Chip Information

Chip Model FLASH Capacity RAM Capacity Package Information
CI13241 1MByte 288KByte SSOP24(8.6mm x 6.0mm x 1.75mm)
CI13242 2MByte 288KByte SSOP24(8.6mm x 6.0mm x 1.75mm)

Application Areas

CI1324X can be applied to the following product fields:

  • Smart Home
  • Smart Appliances
  • Smart Toys
  • Smart Lighting
  • Wearable Devices

CI13241&CI13242 Chip Application Diagram

Figure G-1 CI1324X Chip Application Diagram

Chip Key Features

  • Brain Neural Processing Unit BNPU V3.5
    • Adopting Chipintelli’s new generation hard BNPU technology, supporting DNN, TDNN, RNN, CNN, and other neural networks, as well as parallel vector operations, enabling high-performance voice recognition, voice noise reduction, and other functions
  • CPU
    • 32-bit high-performance CPU, with a maximum frequency of 210MHz
    • 32-bit single-cycle multiplier, supporting DSP extension acceleration
  • Memory
    • Built-in 288KB SRAM
    • Built-in 256bit eFuse
    • Built-in 1MB/2MB Flash
  • Audio Interface
    • Built-in high-performance low-power Audio Codec module, supporting single-channel ADC sampling and single-channel DAC playback
    • Supporting Automatic Level Control (ALC) function
    • Supporting 8kHz/16kHz/24kHz/32kHz/44.1kHz/48kHz sampling rates
  • Power Management Unit PMU
    • Supporting wide power supply voltage, with a supply range of 3.6V to 5.5V
    • Built-in 2 high-performance LDO circuits, without the need for external power chip configuration, with only a small number of external peripheral components required
  • Clock
    • Built-in RC oscillator
    • Supporting external crystal input
  • Peripherals and Timers
    • 3 UART interfaces, supporting up to 3M baud rate communication
    • 1 IIC interface, supporting external IIC device expansion
    • 4 PWM interfaces, supporting LED dimming and motor control
    • Built-in 2 32-bit timers
    • Built-in 1 independent watchdog (IWDG)
  • GPIO
    • Supporting 13 GPIO ports, which can be used as master control IC applications
    • Each GPIO port can be configured with interrupt functions and pull-up/pull-down states
    • 7 GPIO ports can be directly supported with 5V level communication through external 5V pull-up resistors
  • Software Development Support
    • Providing complete software development package, application solution examples, and online firmware production support through the voice development platform, for more information, please visit: https://aiplatform.Chipintelli.com
  • Firmware flashing and Protection
    • Supporting UART upgrade and firmware protection
  • ESD Performance
    • Adopting internal ESD enhancement design, passing 4KV contact discharge test
  • ROHS and REACH Compliance
    • Using environmentally friendly materials, compliant with ROHS and REACH standards
  • Package and Operating Temperature Range
    • Package: SSOP24, dimensions 8.6mm x 6.0mm x 1.75mm
    • Operating temperature range: -40°C to +85°C