I2C Smart Card memory

[aerostar]

Many moons ago I bought some of the blank memory cards, and I THINK I got them from.........Crownhill !!!

Perhaps you could drop Lester a line and see if they did supply these cards at one time.

I never did get round to using them, but I did write on one card the pinout, but nothing about the address and I cannot see in my pdfs any data sheet for these.

C1 5v , C3 SCL, C5 GROUND, C7 SDA. C2,C4,C6,C8 NO CONNECTS.

From what I remember, the memory inside was 24lc16, and there are 8 banks of 256 bytes, so if your card is the same you have to write in blocks of upto 256 per block then change to next bank.
The control I use for 24LC16
RBANK0 CON %10100000 'CONTROL CODE OF MEM IC FIRST 256BYTES
RBANK1 CON %10100010
RBANK2 CON %10100100
RBANK3 CON %10100110
RBANK4 CON %10101000
RBANK5 CON %10101010
RBANK6 CON %10101100
RBANK7 CON %10101110

Also remember the need for pullups.