NUVOTON ISD9130FI

The ISD9100 is a system-on-chip product optimized for low power, audio record and playback with an embedded ARM Cortex™-M0 32-bit microcontroller core. The ISD9100 embeds a Cortex™-M0 core running up to 49 MHz with 68/100/145K-byte of non-volatile flash memory and 12K-byte of embedded SRAM. It also comes equipped with a variety of peripheral devices, such as Timers, Watchdog Timer (WDT), Real-time Clock (RTC), Peripheral Direct Memory Access (PDMA), a variety of serial interfaces (UART, SPI/SSP, I²C, I²S), PWM modulators, GPIO, Analog Comparator, Low Voltage Detector and Brown-out detector. The ISD9100 comes equipped with a rich set of power saving modes including a Deep Power Down (DPD) mode drawing less than 1 μA. A micro-power 16KHz oscillator can periodically wake up the device from deep power down to check for other events. A Standby Power Down (SPD) mode can maintain a real time clock function at less than 10 μA. For audio functionality the ISD9100 includes a Sigma-Delta ADC with 92dB SNR performance coupled with a Programmable Gain Amplifier (PGA) capable of a maximum gain of 61dB to enable direct connection of a microphone. Audio output is provided by a Differential Class D amplifier (DPWM) that can deliver 1W of power to an 8Ω speaker. The ISD9100 provides eight analog enabled general purpose IO pins (GPIO). These pins can be configured to connect to an analog comparator, can be configured as analog current sources or can be routed to the SDADC for analog conversion. They can also be used as a relaxation oscillator to perform capacitive touch sensing.

• Core
  • ARM Cortex™-M0 core runs up to 49MHz.
  • One 24-bit System tick timer for operating system support.
  • Supports a variety of low power sleep and power down modes.
  • Single-cycle 32-bit hardware multiplier.
  • NVIC (Nested Vector Interrupt Controller) for 32 interrupt inputs, each with 4-levels of priority.
  • Serial Wire Debug (SWD) support with 2 watchpoints/4 breakpoints.
• Power Management
  • Wide operating voltage range from 2.4V to 5.5V.
  • Power management Unit (PMU) providing four levels of power control.
  • Deep Power Down (DPD) mode with sub micro-amp leakage (<1 μA).
  • Wakeup from Deep Power Down via dedicated WAKEUP pin or timed operation from internal low power 16kHz oscillator.
  • Standby mode with limited RAM retention and RTC operation (<10 μA).
  • Wakeup from Standby can be from any GPIO interrupt, RTC or BOD.
  • Sleep mode with minimal dynamic power consumption.
  • 3V LDO for operation of external 3V devices such as serial flash.
• Flash EPROM Memory
  • 68/100/145K bytes Flash EPROM for program code and data storage.
  • 4KB of flash can be configured as boot sector for ISP loader.
  • Support In-system program (ISP) and In-circuit program (ICP) application code update.
  • 1K byte page erase for flash.
  • Configurable boundary to delineate code and data flash.
  • Support 2 wire In-circuit Programming (ICP) update from SWD ICE interface.
• SRAM Memory
  • 12K bytes embedded SRAM.
• Oscillators
  • One high speed and two low speed oscillators providing flexible selection for different applications.
  • No external components necessary.
  • Built-in trimmable oscillator with range of 16 - 49MHz.
  • Factory trimmed within 1% to settings of 49.152MHz and 32.768MHz.
  • User trimmable with in-built frequency measurement block (OSCFM) using reference clock of 32kHz crystal or external reference source.
  • Ultra-low power (<1uA) 16kHz oscillator for watchdog and wakeup from power-down or sleep operation.
  • External 32kHz crystal input for RTC function and low power system operation.
• GPIO
  • Four I/O modes: Quasi bi-direction, Push-Pull output, Open-Drain output, Input only with high impedance, TTL/Schmitt trigger input selectable.
  • I/O pin can be configured as interrupt source with edge/level setting.
  • Switchable pull-up.
• Audio Analog to Digital converter
  • Sigma Delta ADC with configurable decimation filter and 16 bit output.
  • 92dB Signal-to-Noise (SNR) performance.
  • Programmable gain amplifier with 32 steps from -12 to 35.25dB in 0.75dB steps.
  • Boost gain stage of 26dB, giving maximum total gain of 61dB.
  • Input selectable from dedicated MIC pins or analog enabled GPIO.
  • Programmable biquad filter to support multiple sample rates from 8 - 32kHz.
  • DMA support for minimal CPU intervention.
  • Differential Audio PWM Output (DPWM)
  • Direct connection