8-Bit OTP MCU
CSU8RP3429
MAIN PARAMETERS

4K*16 bits OTP, 256 bytes data RAM

Integrated 4*5 LCD driver, 1/4duty, 1/2bias

Internal reference voltage accuracy ±1%

Built-in 32/16/8/4/2 MHz HIRC with the precision of ±1%

Introduction

The CSU8RP3429 is a high performance 8-bit RISC MCU with 12-bit ADC and LCD driver. It integrates 256 bytes SRAM, 4K×16 bits OTP ROM, 2 channel PWM, 1 analog comparator, 2 analog Op amp, is suitable for multiple applications such as power band, small home appliances.

8 bit RISC Core

8 bit RISC Core, and high efficiency C compiler

4K x 16-bit OTP program memory

256-byte data memory (SRAM)

Only 41 single-word instructions

8-level PC storage stack

8-level PUSH and POP stack

Oscillator

Built-in 32/16/8/4/2 MHz HIRC with the precision of ±1%, 25℃

Built-in 32KHz LIRC with the precision of ±1%, 25℃

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

8MHz ERC @ VDD=5V, 4MHz ERC @ VDD = 3V

Special Features

Power-on reset (POR)

POR and hardware reset delay timer (98 ms)

Low voltage reset (LVR) -- 2.0V / 2.4V / 3.0V / 3.6V

Timer 0 — 8-bit timing counter supporting programming and pre-frequency division

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

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

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

Peripheral Features

13 bidirectional I/O ports, 1 input port

2 PWM / buzzer output

5 internal interrupts, 2 external interrupts

4 input ports with the wake-up function

6 open drain output port

Voltage of input logic level is configurable

PT3.3, PT5.0&5.1's driver current is configurable, up to 40mA@5V

5 channels 12-bit ADC

— Internal 1.45V / 2.0V / 3.0V / 4.0V / VDD and external input

— Built-in temperature sensor

— Reference voltage accuracy ±1%@5V, 25°C

— Support digital comparator

4*5 LCD drives, 1/4 duty, 1/2 bias

VDD over-voltage detection (4.8 V, 4.9 V, 5.4 V, and 5.6 V)

Low-voltage detection (LVD) pin, 2.4V / 3.0V / 3.6V voltage provided internally for comparison

CMOS Technology

Operating voltage: 2.2 V to 5.5 V

Operating temperature: -40~85 ºC

Low Power Consumption

Operating current of MCU

-- 1mA @ 4MHz, 3V in normal mode

-- 10uA @ 32KHz, 3V in normal mode

-- Less than 1μA in sleep mode

Package Type

SOP20/ DIP20

Applications

Power bank

Small home appliances

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