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IC41C16256 Datasheet(PDF) 2 Page - Integrated Circuit Solution Inc |
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IC41C16256 Datasheet(HTML) 2 Page - Integrated Circuit Solution Inc |
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2 / 21 page  FEATURES • Extended Data-Out (EDO) Page Mode access cycle • TTL compatible inputs and outputs; tristate I/O • Refresh Interval: 512 cycles /8 ms • Refresh Mode: RAS-Only, CAS-before-RAS (CBR), Hidden • Single power supply: 5V ± 10% (IC41C16256) 3.3V ± 10% (IC41LV16256) • Byte Write and Byte Read operation via two CAS • Industrail Temperature Range -40oC to 85oC • Pb-free package is available DESCRIPTION The ICSI IC41C16256 and IC41LV16256 is a 262,144 x 16- bit high-performance CMOS Dynamic Random Access Memo- ries. The IC41C16256 offer an accelerated cycle access called EDO Page Mode. EDO Page Mode allows 512 random accesses within a single row with access cycle time as short as 10 ns per 16-bit word. The Byte Write control, of upper and lower byte, makes the IC41C16256 ideal for use in 16-, 32-bit wide data bus systems. These features make the IC41C16256and IC41LV16256 ideally suited for high-bandwidth graphics, digital signal processing, high-performance computing systems, and peripheral applications. The IC41C16256 is packaged in a 40-pin 400mil SOJ and 400mil TSOP-2. IC41C16256 IC41LV16256 256K x 16 (4-MBIT) DYNAMIC RAM WITH EDO PAGE MODE KEY TIMING PARAMETERS Parameter -25(5V) -35 -50 -60 Unit Max. RAS Access Time (tRAC) 25355060 ns Max. CAS Access Time (tCAC) 8 10 14 15 ns Max. Column Address Access Time (tAA) 12182530 ns Min. EDO Page Mode Cycle Time (tPC) 10122025 ns Min. Read/Write Cycle Time (tRC) 456090 110 ns 40-Pin SOJ PIN CONFIGURATIONS 40-Pin TSOP-2 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/O0-15 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 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 |
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