|
Title: What uC? 20 pin pdip with xtal connected to pin 1 & 2 Post by: Ichan on November 21, 2007, 05:43:01 17:43 Hi,
I'am trying to find out a microcontroller on an existing board with label scraped off, it has 20 pin in pdip package and the crystal is connected to pin 1 and 2. Anyone knows? TIA, Ichan. Title: Re: What uC? 20 pin pdip with xtal connected to pin 1 & 2 Post by: 8K51 on November 21, 2007, 07:33:48 19:33 Hi
Some old 8 bits µC from Motorola(Freescale) had Xtal on 1 and 2 pins one of them in 68HC05 family : 68HC705J1A Here is the link for its datasheet http://www.freescale.com/files/microcontrollers/doc/data_sheet/MC68HC705J1A.pdf?pspll=1 (http://www.freescale.com/files/microcontrollers/doc/data_sheet/MC68HC705J1A.pdf?pspll=1) Maybe some 68HC908 have same pinout fot oscillator Regards Title: Re: What uC? 20 pin pdip with xtal connected to pin 1 & 2 Post by: Ichan on November 21, 2007, 09:22:12 21:22 Ah... You are my hero!
Too bad, as you said it's an obsolete one, and no PDIP 20 replacement... :( Best Regards, Ichan. |