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CSU38M20 User Manual

天天爱棋牌 CSU38M20 User Manual V1.0.7

2019-07-29
CST92F30 User Manual
2019-07-26
CSU32P20_UserManual
Function description

CSU32P20 is an 8-bit CMOS single-chip RISC MCU with a 12-bit ADC, built-in 2K × 16-bit OTP program memory and 104-byte SRAM.

High-performance RISC CPU

8-bit single-chip microcontroller MCU

Built-in 2K × 16-bit program memory OTP

104-byte data memory (SRAM)

Only 42 single-word instructions

天天爱棋牌 8-level PC storage stacks

8-level PUSH and POP stacks

Oscillator

Built-in 32/16/8/4/2MHz oscillator with ±1%@5V accuracy, 25°C

Peripherals characteristics

14-bit bidirectional I/O ports

2-channel buzzer outputs, and 2-channel PWM outputs

2 complementary PWM outputs, supporting large drive output

4 internal interrupts

— ADC

— Timer 0

— Timer/counter 2

天天爱棋牌 — Timer/counter 3

2 external interrupts - INT0, INT1, and 11 external interrupt input ports

11 input ports with wake-up function

7+3 channels 12-bit ADC

— 6 reference voltage options: internal 1.4V, internal 2.0V, internal 3.0V, internal 4.0V, VDD, and external input

— With digital comparator

A reference voltage (1。4V, 2V, 3V, 4V) output, with accuracy of ±1。5%

Low voltage detection (LVD) with internal 2.4V voltage comparator

4 open-drain output ports

天天爱棋牌 — PT5。0, PT5。1, PT1。1, and PT1。3 open-drain outputs

天天爱棋牌 Output current of PT5.0 and PT5.1 can be configured as IOL=53mA@5V,IOH=25mA@5V;

Output current of PT1。0 and PT3。5 can be configured as IOL=30mA@5V, IOH=20mA@5V

Input logic level threshold configurable

5*8 LCD driver, 1/4duty, 1/2bias

Characteristics of dedicated microcontroller

Power-on reset (POR)

Power-on reset and hardware reset delay timer (98ms)

Built-in low voltage reset (LVR)

Timer 0

– 8-bit prescale 8-bit timing counter

Timer/counter 2

– 12-bit prescale 12-bit frequency divider

天天爱棋牌 Timer/counter 3

– 12-bit prescale 12-bit frequency divider

Extended watch dog timer (32K WDT)

天天爱棋牌 — Programmable time range

Window watchdog (CPU clock)

— 7-bit down-counter, cannot be turned off after enabling

Working conditions

Voltage operating range

天天爱棋牌 - VDD 2.35V~5.5V

Operating temperature range

- -40~85ºC

Low power consumption

MCU operating current

— Normal mode: 2.5mA@16MHz, 5V

Package

SOP8, DIP8, MSOP8, MSOP10, SOP14, DIP14, TSSOP14, SOP16, TSSOP16, DIP16

Application scope

Mobile power supply

E-cigarette

Electrombile meter

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