STC and ATMEL

STC is a 8051 MCU design and production company in Shenzhen. STC series MCUs now occupy a large proportion of the 51 MCU market in China. Hongjing Technology has now grown into the world's largest 8051 MCU design company and now provides dedicated MCU design services. Shenzhen Hongjing Technology Co., Ltd. is a professional MCU supplier, committed to providing the industry's leading, high-performance STC series MCU and SRAM. Its products have passed multiple certifications from the internationally authoritative certification agency SGS (Swiss General Notary Office): 1. EFT test certification: 4KV fast pulse interference 2. Green environmental protection certification: lead-free certification STC MCU performance features are: 89C series: operating frequency 0~40M equivalent to 0~80M of ordinary 8051, FLASH program storage 4K-64K, RAM data storage 512B-1280B, internal integrated EEPROM 2K-16K and watchdog and dedicated reset circuit, with A/D function. 12C series: single clock/machine cycle. Ultra-small package. 2-4 PWM, 8-10-bit high-speed A/D conversion. FLASH program storage 512B-60K, RAM data storage 256B-1280B, integrated EEPROM and hardware WDT. The products are all low power. With ISP and IAP functions, strong anti-interference and EMI reduction performance. The 15F series has a single-chip microcomputer with a minimum of 8 pins of STC pins. The most notable feature is that it supports ISP online download function.

Atmel Semiconductor was founded in 1984 and is headquartered in the United States. It is a world leader in the design, manufacture and marketing of advanced semiconductor products, including microprocessors, programmable logic devices, non-volatile memory, security chips, mixed signal and RF radio frequency integrated circuits. Through the combination of these core technologies, ATMEL has produced a variety of general-purpose and application-specific system-level chips to meet the growing and evolving needs of today's electronic system design engineers.

AVR(r) is an 8-bit RISC microcontroller that is many times faster than traditional CISC architecture in terms of instruction and data throughput. AVR has a rich set of on-chip analog and digital peripherals, as well as in-system programmable EEPROM and FLASH memory. This greatly improves flexibility, eliminates the bottleneck of accessing external memory, and improves program and data security. The product line extends from tinyAVR(tm) (1K on-chip program FLASH) to megaAVR(tm) (128K on-chip program FLASH).

　　For applications that require high processing power while maintaining the lowest possible power consumption, ATMEL offers 32-bit microcontrollers based on ARM(r). This series offers a variety of memory capacities and on-chip functions to precisely meet the needs of various high-performance applications. For applications that require extremely high data bandwidth, consider 64-bit MIPS(r) products or 128-bit mAgic VLIW (very long instruction word) signal processor cores.

　　ATMEL has a wide range of microcontrollers based on the 80C51 structure, including FLASH versions, OTP versions and ROM versions that can be programmed online. It also provides advanced on-chip peripheral functions, such as CAN bus controllers, USB controllers, MP3 decoders, and smart card interfaces. ATMEL can also provide highly reliable microcontrollers for military and space applications based on the Motorola PowerPC(r) structure.