name: TC514900AJ function: 4M DRAM (512K X 9) package: 28 Pin SOJ, 400 Mil,28 manufacturer: Toshiba added-by: Steve J. Sibert +--()--+ Vcc | 1 28| Vss I/O1 | 2 27| I/O8 I/O2 | 3 26| I/O7 I/O3 | 4 25| I/O6 I/O4 | 5 24| I/O5 I/O5 | 6 23| !CAS !WRITE | 7 22| !OE !RAS | 8 21| N.C. A9R | 9 20| A8 A0 |10 19| A7 A1 |11 18| A6 A2 |12 17| A5 A3 |13 16| A4 Vcc |14 15| Vss +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/