8-Bit OTP MCU
CSU8RP3215
MAIN PARAMETERS

8-bit RISC MCU with 12-bit ADC

1 analog comparator

1 deadzone adjustable complementary PWM

Large drive I/O

Introduction

The CSU8RP3215 is a high performance 8-bit RISC MCU with 12-bit ADC. It integrates deadzone adjustable complementary PWM, large drive I/O, UART, LCD Driver, analog comparator, is suitable for multiple applications such as power bank, small home appliances.

8 bit RISC Core

8 bit RISC Core, and high efficiency C compiler

2K x 16-bit OTP program memory

128-byte data memory (SRAM)

Only 42 single-word instructions

8-level PC storage stack

8-level PUSH and POP stack

Oscillator

Built-in 32/16/8/4/2 MHz HIRC

32768 Hz external oscillator (RTC) or 2 MHz to 16 MHz oscillator

6.8MHz ERC @ VDD=5V 68KΩ

Peripheral Features

13 bidirectional I/O ports, 1 input port

— 9 input ports with the wake-up function

— 5 open drain output port

— PT1.4, PT3.5&3.6's driver current(IOH/IOL) can be configed to 54/57mA@5V

— PT1.4/1.5/1.6/1.7's driver current(IOH/IOL) can be configed to 31/35mA@5V

— Voltage of input logic level is configurable

3 PWM / buzzer output

— 1 pare deadzone adjustable complementary PWM

7 internal interrupts, 2 external interrupts

9 channels 12-bit ADC

— Voltage reference:Internal 1.4V / 2.0V / 3.0V / 4.0V / VDD and external input

— Reference voltage accuracy ±1%

— Support digital comparator

Low-voltage detection (LVD) pin, 2.4V / 3.6V voltage provided internally for comparison

1 analog comparator

Special Features

Power-on reset (POR)

POR and hardware reset delay timer (98 ms)

Low voltage reset (LVR)

Timer 0 — 8-bit timer with programable prescaler

Timer 2 — 12-bit timer/counter with programable prescaler

Timer 3 — 12-bit timer/counter with programable prescaler

Timer 4 — 12-bit timer/counter with programable prescaler

Extended watchdog timer (32K WDT) — Programmable time range

CMOS Technology

Operating voltage

— 2.2 V to 5.5 V @ fcpu=1MHz

— 3.6 V to 5.5 V @ fcpu=4MHz

Operating temperature: -40~85 ºC

Low Power Consumption

Operating current of MCU

-- 0.85mA @ 4MHz, 3V in normal mode

-- 8uA @ 32KHz, 3V in normal mode

-- Less than 1μA in sleep mode

Package Type

SOP16 / DIP16 / TSSOP16

Applications

Power bank

Small home appliances

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