Description
*** clean up description***
Features:
1, using macrocrystal STC latest 1T microcontroller STC15W4K58S4. The program is compatible with all STC15 series microcontrollers, such as the STC15F2K60S2 series.
2, using the LQFP48 package, available 46 I / O (than DIP40 package more than 8 I / O oh), support 4-way serial UART, easy to connect multiple serial modules at the same time.
3, all I / O all lead out and press 2.54mm spacing layout, to facilitate the use of the smallest system in the universal board and breadboard.
4, onboard CH340G USB to serial chip, can achieve single-chip simulation debugging, serial communication and program download.
5, the use of ordinary Andrews mobile phone data cable to achieve the program to download or power supply.
6, onboard 5v regulator chip, you can use the 7v-12v input to the board power supply.
7, onboard 3.3v regulator chip, you can output 3.3v power supply.
8, the display interface can be an external LCD12864 LCD1602 and TFT 1.44-inch color screen.
9, onboard control of the LED * 1, key * 4.
10, the smallest system size is 60 * 38mm, small and exquisite, unique design, sophisticated design, all aspects of the most practical starting.
11, to provide a wealth of practical routines and learning materials, but also provide video tutorials and routines one by one correspondence.
12, the development board with SMD processing, quality assurance, the appearance of more beautiful, not to be missed.
13, the kernel supports 3.3v / 5v optional, easy to connect other different levels of logic peripherals.
STC15W4K series of single-chip parameters:
Large capacity 4096 bytes of on-chip RAM data memory.
High speed: 1 clock / machine cycle, enhanced 8051 core, faster than the traditional 8051 7 to 12 times faster.
Speed is also faster than STC early 1T series of single-chip (such as STC12 / 11/10 series) 20% faster.
Wide voltage: 2.5 ~ 5.5V.
Low power design: low speed mode, idle mode, power down mode (can be awakened by external interrupt or internal power-down wake-up timer).
No need for external reset of the microcontroller, ISP programming 16 reset threshold voltage optional, built-in high reliability reset circuit.
No need for external crystal of the microcontroller, ISP programming from the internal clock from 5MHz ~ 35MHz can be set within the high-precision R / C clock (± 0.3%), the equivalent of ordinary 8051: 60 ~ 420MHz.
On-chip Flash program memory, erase the number of times more than 100,000 times.
Large capacity on-chip EEPROM function, erase the number of times more than 100,000 times.
ISP / IAP, programmable in the system / programmable in the application, no programmer / emulator required.
High-speed ADC, 8-channel 10-bit, the speed can reach 300,000 times / sec, 8-way PWM can also be used when the 8-way D / A.
Comparator, which can be used as a 1-channel ADC, and can be used for power-down detection, support external pin CMP + and external pin CMP- to compare, can produce an interrupt, also supports external pin + and internal reference voltage for comparison.
6-channel 15-bit dedicated high-precision PWM (with dead zone control), plus 2-way CCP, can be used to achieve D / A.
A total of seven timers / counters, of which five 16-bit reloadable timer / counters.
Programmable clock output function (clock division output for internal system clock or external pin clock input).
Ultra-high speed four serial port / UART, four completely independent high-speed asynchronous serial communication port, time-sharing switch can be used as a 9-series serial port.
SPI high speed synchronous serial communication port.
Hardware Watchdog (WDT).
First instruction set structure, compatible with the general 8051 instruction set, a hardware multiplication / division instructions.
General I / O port, after reset: quasi-bidirectional / weak pull-up, can be set to four modes: quasi-bidirectional / weak pull-up, push-pull / strong pull-up, only as output / high impedance, open drain I / O drive capability can reach 20mA, but the whole chip should not exceed 20mA.
