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IS41C16257-60K Datasheet(PDF) 2 Page - Integrated Silicon Solution, Inc |
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IS41C16257-60K Datasheet(HTML) 2 Page - Integrated Silicon Solution, Inc |
2 / 17 page IS41C16257 IS41LV16257 2 Integrated Silicon Solution, Inc. — 1-800-379-4774 DR004-1B 05/24/99 ISSI® FUNCTIONAL BLOCK DIAGRAM OE WE LCAS UCAS CAS WE DATA I/O BUS COLUMN DECODERS SENSE AMPLIFIERS MEMORY ARRAY 262,144 x 16 CAS CLOCK GENERATOR WE CONTROL LOGICS OE CONTROL LOGIC I/O0-I/O15 RAS A0-A8 RAS CLOCK GENERATOR REFRESH COUNTER ADDRESS BUFFERS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VCC I/O0 I/O1 I/O2 I/O3 VCC I/O4 I/O5 I/O6 I/O7 NC NC WE RAS NC A0 A1 A2 A3 VCC GND I/O15 I/O14 I/O13 I/O12 GND I/O11 I/O10 I/O9 I/O8 NC LCAS UCAS OE A8 A7 A6 A5 A4 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VCC I/O0 I/O1 I/O2 I/O3 VCC I/O4 I/O5 I/O6 I/O7 NC NC WE RAS NC A0 A1 A2 A3 VCC GND I/O15 I/O14 I/O13 I/O12 GND I/O11 I/O10 I/O9 I/O8 NC LCAS UCAS OE A8 A7 A6 A5 A4 GND PIN DESCRIPTIONS A0-A8 Address Inputs I/O0-I/O15 Data Inputs/Outputs WE Write Enable OE Output Enable RAS Row Address Strobe UCAS Upper Column Address Strobe LCAS Lower Column Address Strobe Vcc Power GND Ground NC No Connection 40-Pin SOJ PIN CONFIGURATIONS 40-Pin TSOP (Type II) |
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