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AD484M1644VTA-15

ETC
Part Number AD484M1644VTA-15
Manufacturer ETC
Description Ascend Semiconductor Corporation(64Mb SDRAM)
Published Mar 23, 2005
Detailed Description Ascend Semiconductor Corporation 64Mb SDRAM ASCEND ASCEND Semiconductor Semiconductor 64M 64M SDRAM SDRAM Data Data sh...
Datasheet PDF File AD484M1644VTA-15 PDF File

AD484M1644VTA-15
AD484M1644VTA-15

Overview
Ascend Semiconductor Corporation 64Mb SDRAM ASCEND ASCEND Semiconductor Semiconductor 64M 64M SDRAM SDRAM Data Data sheet sheet Tel: (03)5635888 / Fax: (03)5635188/ http://www.
ascendsemi.
com.
tw Preliminary 1 Ascend Semiconductor Corporation Ordering Information 64Mb SDRAM AD 48 4M 16 4 4 V T A – 7 L I Ascend Semiconductor Operating Range I : Industrial -40¢J ~ 85¢J Non : Commercial 0¢J ~ 70¢J S : Special 0¢J ~ 85¢J EDO FPM DDRSDRAM DDRSGRAM SGRAM SDRAM : : : : : : 40 41 42 43 46 48 Density 16M : 16 Mega Bits 8M : 8 Mega Bits 4M : 4 Mega Bits 2M : 2 Mega Bits 1M : 1 Mega Bit Organization 8 : x8 9 : x9 16 : x16 18 : x18 32 : x32 Refresh 1 : 1K, 8 : 8K 2 : 2K, 6 :16K 4 : 4K Bank 2 : 2Bank 6 : 16Bank 4 : 4Bank 3 : 32Bank 8 : 8Bank Power Non : Standard L : Low power Min Cycle Time ( Max Freq.
) -55 : 5.
5ns ( 183MHz ) -6 : 6ns ( 167MHz ) -7 : 7ns ( 143MHz ) -8 : 8ns ( 125MHz ) -10 : 10ns ( 100MHz ) -15 : 15ns (66MHz,CL1 applicable) Revision A : 1st B : 2nd C : 3rd D :4th Interface V: 3.
3V R: 2.
5V Package C: CSP B: uBGA T: TSOP Q: TQFP P: PQFP ( QFP ) Preliminary 2 Ascend Semiconductor Corporation 64Mb( 4Banks ) Synchronous DRAM AD484M1644VTA ( 4Mx16 ) Description 64Mb SDRAM The AD484M1644VTA is Synchronous Dynamic Random Access Memory ( SDRAM ) organized as 1,048,756 words x 4 banks x 16 bits.
All inputs and outputs are synchronized with the positive edge of the clock .
The 64Mb SDRAM uses synchronized pipelined architecture to achieve high speed data transfer rates and is designed to operate in 3.
3V low power memory system.
It also provides auto refresh with power saving / down mode.
All inputs and outputs voltage levels are compatible with LVTTL .
Features • Fully synchronous to positive clock edge • Single 3.
3V +/- 0.
3V power supply • LVTTL compatible with multiplexed address • Industrial temperature available • Programmable Burst Length ( BL ) - 1,2,4,8 or full page • Programmable CAS Latency ( CL ) -1, 2 or 3 • Data Mask ( DQM ) for Read/Write ma...


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