- This topic has 7 replies, 5 voices, and was last updated 9 years, 11 months ago by .
Viewing 8 posts - 1 through 8 (of 8 total)
Viewing 8 posts - 1 through 8 (of 8 total)
- You must be logged in to reply to this topic.
|
Microcontroller › 8051 › 89S51 and 89C51 similarity or difference
Can The two microcontrollers 89S51 and 89C51 be interchangably used?
Is there a majour difference between the two?
Can I use 89S51 ISP programmer with 89C51 ?
i think it is not possible
89s51 is having mosi.miso sck pins
but 89c51 is programed serilally
i think it may not be possible
Thanks for the useful information.
I had similar impression about 89C51 but I saw a data sheet from Atmel that claims “4K Bytes of In-System Reprogrammable Flash Memory, – Endurance: 1,000 Write/Erase Cycles“
I am new to this forum, can I attach the PDF file here ?
here the insystem programable means
i think 89C51 can be programed through RXD and TXD serial pins
we connect it to PC db9 port through max232ic and program it with relavent software.but in case of 89S51 it is programed using “master and slave mode”
MOSI:master out slave in
MISO:master in slave out
I think you are using an usb programer for 89S51 that containing an atmega8
microcontroller from AVR family from atmel.this mcu also contains mosi,miso pins.
so 89C51 wont support it
89c51 is once programmable and you can’t erase it.
but in 89s51 you can programme it many times
89c51 is not programable with the isp programmer of 89s51. 89c51 is only programable through its parallel proggraming lines.
89C51 also reprogramable. we can erase and reprogram easily