STC MCU Selection Guide

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STC MCU Selection Guide [Copy link]

Reasons for choosing STC89C51RC and STC89C58RD+ series microcontrollers:

★ Strong encryption, cannot be decrypted
★ Super strong anti-interference:
1. High anti-static (ESD protection)
2. Easily pass 2KV/4KV fast pulse interference (EFT test)
3. Wide voltage, not afraid of power supply jitter
4. Wide temperature range, -40℃～85℃
5. I/O port has been specially processed
6. The power supply system inside the microcontroller has been specially processed
7. The clock circuit inside the microcontroller has been specially processed
8. The reset circuit inside the microcontroller has been specially processed
9. The watchdog circuit inside the microcontroller has been specially processed
★ Three measures to reduce the external electromagnetic radiation of the microcontroller clock:
　　　　　- A strong guarantee for export to Europe and the United States
1. ALE output is prohibited;
2. If 6 clocks/machine cycles are selected, the external clock frequency can be reduced by half;
3. The gain of the microcontroller clock oscillator can be set to 1/2Gain.
★Ultra-low power consumption:
1. Power-down mode: typical power consumption <0.1 μA 　
2. Idle mode: typical power consumption 2mA
3. Normal working mode: typical power consumption 4mA-7mA
4. The power-down mode can be awakened by an external interrupt, suitable for battery-
　 　 powered systems, such as water meters, gas meters, portable devices, etc.
★In-system programmable, no programmer required, remote upgradeable
★STC-ISP download programmer available, 10,000 pieces/person/day
★MCU with internally integrated MAX810 dedicated reset circuit available,
only D version has internally integrated dedicated reset circuit, original reset circuit can be retained or not used, when not in use, RESET pin is directly shorted to ground


STC12C2052/STC12C4052 Main performance: ●High speed: 1 clock/machine cycle, RISC type CPU core, 12 times faster than ordinary 8051
●Wide voltage: 3.4~5.5V, 2.0~3.8V (STC12LE2052AD series)
●Low power design: idle mode, power-down mode (can be woken up by external interrupt)
●Operating frequency: 0~35MHz, equivalent to ordinary 8051: 0~420MHz
●Clock: external crystal or internal RC Optional oscillator
●512/1K/2K/3K/4K/5K on-chip FLASH program memory, erase and write times more than 100,000 times
●256 bytes on-chip RAM data memory
●E2PROM function on chip
●ISP/IAP, in-system programmable
●2 analog comparators
●8-channel high-precision 8-bit ADC
●2-channel capture/compare unit (CCU/PCA/PWM), providing PWM function
●2 16-bit timers
●Hardware watchdog (WDT)
●High-speed SPI communication port
●Enhanced UART
●Advanced RISC reduced instruction set structure, compatible with ordinary 8051 instruction set111 powerful instructions, 12 instructions can be completed
　　　　　in just 1 clock　　　　　　Integrated hardware multiplier and hardware divider (execution speed is 4 clock cycles)4 groups of 8 8-bit general working registers (32 general registers in total)

460656861

Thank you.. I learned some knowledge.

mxdaiyi

Understand~~ STC seems not very expensive~~ I want to play with single-chip microcomputers, but I can't find the circuit diagram of STC's ISP download line. . . 89X52/51 seems to be quite a lot~~

新郧阳

Find out...

sjmasdf

Thanks for sharing! Thanks for sharing!