CSU38F20 is an 8-bit wide voltage Flash MCU with LED driver and 12-bit ADC, built-in 16K bytes Flash program memory, integrated 8COM×7SEG LED driver, UART interface, I2C interface, suitable for personal care, electronic cigarette, battery management , fire signs and other fields.

Main features

High-performance RISC CPU

• 8-bit MCU

• Built-in 8K×16-bit program memory FLASH

• 488 bytes of data memory (SRAM)

• 43 single-word instructions

• 8-level PC storage stack

• 8-level PUSH and POP stack

• Supports In-Circuit Simulation (ICD)

oscillator

• Built-in 32MHz oscillator, the accuracy is ±1%@5V, 25℃

Peripheral Features

• 19-bit bidirectional I/O port

• 3 PWM outputs, 1 complementary PWM output

• 10 interrupt sources

— 8 internal interrupts

— 2 external interrupts—INT0, INT1

• 14 inputs with wake-up function

• LED driver

— 8COM×7SEG LED driver with adjustable duty cycle

— SED drive capability 8/10/12/14mA, accuracy ±5% — COM sink current 70mA/40mA

• 12-bit ADC

— 8 external input channels, supporting differential/single-ended input

— Internal 1.22V, VDD two voltage reference options

• Internal voltage reference

— 1.22V internal voltage reference, accuracy ±1% (5V)

— Support voltage reference output, load 10K/100pF

• Low Voltage Reset (LVR) function

— Reset voltage: 1.7V, 2.0V, 2.5V

• Low Voltage Detection (LVD) function

— Detection voltage: 1.9V, 2.2V, 3.2V, 3.7V

— Comparator function, external input and internal 0.6V comparison

• POR power-on reset voltage 1.8V

• PT1.3 supports open-drain output

• PT1.5 and PT1.4 output current can be configured, the maximum can be IOL=60mA@5V, IOH=25mA@5V

• Configurable input logic level voltage

• 1 channel UART, baud rate up to 115200

• 1 channel I2C slave, supports standard mode (100kbps) and fast mode (400kbps)

Features of Dedicated Microcontrollers

• Power-On Reset (POR)

• Power-on reset and hardware reset delay timer (30ms)

• Built-in Low Voltage Reset (LVR)

• Timer 0-8-bit programmable prescaler timer/counter

• Timer/Counter 2-12-bit programmable prescaler Timer/Counter

• Timer/counter 3-12-bit programmable prescaler timer/counter

• Timer/Counter 4-12-bit programmable prescaler Timer/Counter

• Extended Watchdog Timer (32K WDT)

— Programmable time range

• Window watchdog (CPU clock)

— 7-bit down-counter, cannot be closed by software after enabling

CMOS technology

• Voltage operating range

— 2.3V~5.5V@fcpu=4MHz (instruction cycle)

— 1.8V~2.4V@fcpu=2MHz (instruction cycle)

• range of working temperature

— -40~85℃

Low Power Features

• MCU operating current

— Normal mode 3.5mA@4MHz, 5V

— Sleep mode 3uA

package

• QFN24/QFN20/SSOP24/SOP16/MSOP10

Scope of application

• Personal care appliances, electronic cigarettes

• Security

Functional block diagram

The AP8000 universal programmer independently developed by ACROVIEW Technology includes three parts: the host, the bottom plate, and the adapter seat.

The host supports USB and NET connections, allowing multiple ic programmers to be networked to achieve the purpose of simultaneously controlling multiple programmers and burning at the same time. The built-in chip safety protection circuit ensures that even if the chip is reversed or short-circuited due to other reasons, it can be detected immediately and power off to ensure the safety of the chip and the programmer. Embedded high-speed FPGA greatly accelerates data transmission and processing. There is an SD card slot on the back of the host. Put the project file created by the PC software in the root directory of the SD card and insert it into the card slot. Through the buttons on the programmer, the project file can be selected, loaded, and burned, etc. Command, in order to achieve the purpose of being able to operate without the PC, which greatly reduces the cost of PC hardware configuration, and is convenient and quick to match the working environment.

AP8000 makes the host more expandable by adding an adapter board to the base plate. At present, it has supported devices produced by all mainstream semiconductor manufacturers, including TI, ST, MicroChip, Atmel, Hynix, Macronix, Micron, Samsung, Toshiba, etc. The supported device types are NAND, NOR, MCU, CPLD, FPGA, EMMC, etc., and file formats including Intel Hex, Motorola S, Binary, POF, etc. are supported.

About ChipSea: ChipSea, established in September 2003, is a full-signal chain integrated circuit design enterprise integrating perception, calculation, control and connection. Focus on the R&D and design of high-precision ADCs, high-reliability MCUs, measurement algorithms and AIoT one-stop solutions. Products and solutions are widely used in industrial measurement and industrial control, communications and computers, lithium battery management, consumer electronics, automotive electronics, smart home, smart meters, smart health and other fields.

About ACROVIEW: ACROVIEW is the world's leading provider of semiconductor chip programming solutions. The company insists on changing the world with technology, driving the future with intelligence, and continuously creating value for customers. Oncor's AP8000 universal programmer platform and the latest IPS5000 programming automation solution provide one-stop solutions for customers in the semiconductor and electronic manufacturing fields. The company has served global leading customers such as Huawei, BYD, and Foxconn.