UPD431008LE-15

********** C-MOS 128K-WORD x 8-BIT STATIC RAM - TOP VIEW - A3 1 A2 2 A1 3 A0 4 CS 5 I/O1 6 I/O2 7 8 VDD (+5V) 9 GND I/O3 10 I/O4 11 32 A4 31 A5 30 A6 29 A7 28 OE 27 I/O8 26 I/O7 GND 25 VDD (+5V) 24 23 I/O6 22 I/O5 UPD431008LE-15 (1/2) IL08 8 VDD 24 VDD 4 A0 3 A1 2 A2 1 A3 32 A4 31 A5 30 A6 29 A7 21 A8 20 A9 19 A10 18 A11 17 A12 16 A13 15 A14 14 A15 13 A16 5 CS 12 WE 6 I/O1 7 I/O2 10 I/O3 11 I/O4 22 I/O5 23 I/O6 26 I/O7 27 I/O8 28 OE 9 GND 25 GND WE 12 A16 13 A15 14 A14 15 A13 16 21 A8 20 A9 19 A10 18 A11 17 A12 INPUT A0-A16 CS WE ; ADDRESS ; CHIP SELECT ; WRITE ENABLE OUTPUT OE ; OUTPUT ENABLE INPUT/OUTPUT I/O 1-I/O 8 ; DATA INPUT/OUTPUT MODE CS OE WE I / O STAND BY 1 X X HI-Z READ 0 0 1 DATA OUT OUTPUT DISABLE 0 1 1 HI-Z WRITE 0 X 0 DATA IN 0 ; LOW LEVEL 1 ; HIGH LEVEL X ; DON'T CARE HI-Z ; HIGH IMPEDANCE UPD431008LE-15 (2/2) 29 A7 1 13-20 A9-A16 8 ADDRESS LOW 9 BUFFER DECODER MEMORY 1048576 BITS (512X256X8) 5 CS INPUT DATA CONTROL SENS/SWITCH COLUMN DECODER 8 ADDRESS BUFFER OUTPUT DATA CONTROL 6,7,10 11,22,23 26,27 I/O1-I/O8 12 WE 28 OE 71 1-4, 29-32 21 A0-A6 A8 ...