HM5117800BJ

HM5117800BJ(1/2) IL08D C-MOS (2,097,152-WORD x 8)-BIT DRAM —TOP VIEW— VCC 1 VDD I/O0 2 I/O1 3 I/O2 4 I/O3 5 WE 6 RAS 7 8 NC A10 9 A0 10 A1 11 A2 12 A3 13 14 VDD GND 28 27 I/O7 26 I/O6 25 I/O5 24 I/O4 23 CAS 22 OE 21 A9 20 A8 19 A7 18 A6 17 A5 16 A4 GND 15 10 11 12 13 16 17 18 19 20 21 9 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 2 3 4 5 24 25 26 27 7 23 22 6 RAS CAS OE WE INPUT A0 - A10 RAS CAS OE WE w w w .d e e h s a t a . u t4 m o c ; ; ; ; ; ADDRESS ROW ADDRESS STROBE COLUMN ADDRESS STROBE OUTPUT ENABLE WRITE ENABLE INPUT/OUTPUT I/O0 - I/O7 ; DATA www.DataSheet4U.com HM5117800BJ (2/2) RAS 7 CAS 23 WE 6 OE 22 RAS CONTROL CIRCUIT CAS CONTROL CIRCUIT WE CONTROL CIRCUIT OE CONTROL CIRCUIT ROW DECODER & DRIVER 27 I/O 7 ROW DECODER & DRIVER I/O 7 BUFFER I/O 6 BUFFER 256K MEMORY CELL ARRAY x 16 SENSE AMP.& I/O BUS x 17 256K MEMORY CELL ARRAY x 16 SENSE AMP.& I/O BUS x 17 COLUMN DECODER & DRIVER 256K MEMORY CELL ARRAY x 16 SENSE AMP.& I/O BUS x 17 256K MEMORY CELL ARRAY x 16 SENSE AMP.& I/O BUS x 17 COLUMN DECODER & DRIVER I/O 5 BUFFER I/O 4 BUFFER 25 I/O 5 26 I/O 6 PERIPHERAL CIRCUIT 24 I/O 4 ROW DECODER & DRIVER 5 I/O 3 ROW DECODER & DRIVER I/O 3 BUFFER I/O 2 BUFFER 256K MEMORY CELL ARRAY x 16 SENSE AMP.& I/O BUS x 17 256K MEMORY CELL ARRAY x 16 SENSE AMP.& I/O BUS x 17 COLUMN ADDRESS BUFFER 256K MEMORY CELL ARRAY x 16 SENSE AMP.& I/O BUS x 17 256K MEMORY CELL ARRAY x 16 SENSE AMP.& I/O BUS x 17 ROW ADDRE...