Datasheet

FS98O22
Rev. 1.6 10/146
1. Device Overview
The FS98O22 is a CMOS 8-bit single chip microcontroller(MCU) with embedded a 4kx16 bits one-time
programmable (OTP) ROM, a 8-channel 14-bit fully differential input analog to digital converter, low noise
amplifier, and 4 x 20 LCD driver.
The FS98O22 is best suited for applications such as electrical scale, meter, and sensor or transducer
measurement application etc.
1.1. High Performance RISC CPU
z 8-bit single chip microcontroller(MCU).
z Embedded 4k x 16 bits program memory with one-time programmable (OTP) ROM.
z 256-byte data memory (SRAM).
z Only 37 single word instructions to learn
z 8-level memory stacks.
1.2. Peripheral Features
z 16-bit bi-directional I/O port.
z PDM (Pulse Density Modulator) output.
z Buzzer output.
z I2C serial I/O port (slave mode only).
z 4 x 20 LCD drivers.
z One 8-channel 14-bit fully differential input analog to digital converter(ADC)
z One low noise amplifier
1.3. Analog Features
z 8-channel Sigma-Delta ADC with programmable output rate and resolution.
z Low noise (1μV Vpp without chopper, 0.5μV Vpp with chopper, 0.1Hz~1Hz) OPAMP with chopper
controller.
1.4. Special Microcontroller Features
z External 32768Hz crystal oscillator (RTC).
z Embedded Low Voltage Reset (LVR) and Low Voltage Detector (LVD).
z Embedded charge pump (Voltage Doubler) and voltage regulator (3.6V regulated output).
z Embedded bandgap voltage reference (typical 1.16V±50mV, 100ppm/°C).
z 8 Interrupt sources (external: 5, internal: 3).
z Internal silicon temperature sensor.
z Watchdog timer (WDT).
z Embedded 1.0 MHz oscillator.
z Package: 73-pin dice form, 100-pin LQFP.
1.5. CMOS Technology
z Voltage operation ranges from 2.2V to 3.6V.
z Operation current is less than 4 mA; sleep mode current is about 3μA.
FORTUNE'
Properties
For Reference Only