What is the difference between AT89S52 and AT89C52?

Answer 1

89S52 have 8KB ROM and 256bytes RAM also it supports SPI program downloading but 89C51 have 4Kb ROM, 128bytes RAM and it wont support Serial program downloading.

For more details visit www.8051projects.info

Answer 2

Both of them are ICs of 8051 microcontroller.

The difference between them are IC89c51 is compatible with CMOS Voltage levels and 89v51RD2 is compatible with TTL voltage levels. Meaning of "v" in IC 89v51RD2 is it is vacuum tube version.

Answer 3

Both have the same datasheet and instruction set. But 89s52 uses serial programming protocol, and is recommended over 89c52 ( which uses parallel programming protocol and larger programming circuit ) by Atmel for newer projects.

Answer 4

AT89C52IS NOT '"IN SYSTEM " REPROGRAMMABLE WHERE AS AT89S52 IS "IN SYSTEM" REPROGRAMMABLE. AT89S52 CAN BE PROGAMMED IN YOUR PC;AT89C52 CAN BE PROGRAMMED BY THE PROGRAMMER. BY, LIZA BABY

Answer 5

the main difference is C comes before S.... the main and important difference...

Answer 6

8051 is divided in to different categories according to the memories used .

89c51 is type of 8051 only. In 89c51 we used Flash memory.

Answer 7

8051 and 89c51 are same architecture but difference is ROM memory .

ROM less for 8051 while ROM (flash) for 89c51.

it advanced EEPROM (flash) is difference.

Answer 8

8051 is the one of the oldest series of Microcontroller but still very common and in use and at89c51 is the atmel's microcontroller of series 8051.