HY57V641620HGT
需积分: 16 3 浏览量
2009-06-05
16:46:16
上传
评论
收藏 86KB PDF 举报
HY57V641620HG
4 Banks x 1M x 16Bit Synchronous DRAM
This document is a general product description and is subject to change without notice. Hyundai Electronics does not assume any responsibility for use of
circuits described. No patent licenses are implied.
Rev. 0.5/Jun.01
DESCRIPTION
The Hynix HY57V641620HG is a 67,108,864-bit CMOS Synchronous DRAM, ideally suited for the main memory applications which
require large memory density and high bandwidth. HY57V641620HG is organized as 4banks of 1,048,576x16.
HY57V641620HG is offering fully synchronous operation referenced to a positive edge of the clock. All inputs and outputs are synchro-
nized with the rising edge of the clock input. The data paths are internally pipelined to achieve very high bandwidth. All input and output
voltage levels are compatible with LVTTL.
Programmable options include the length of pipeline (Read latency of 2 or 3), the number of consecutive read or write cycles initiated
by a single control command (Burst length of 1,2,4,8 or Full page), and the burst count sequence(sequential or interleave). A burst of
read or write cycles in progress can be terminated by a burst terminate command or can be interrupted and replaced by a new burst
read or write command on any cycle. (This pipelined design is not restricted by a `2N` rule.)
FEATURES
• Single 3.3±0.3V power supply
Note)
• All device pins are compatible with LVTTL interface
• JEDEC standard 400mil 54pin TSOP-II with 0.8mm
of pin pitch
• All inputs and outputs referenced to positive edge of
system clock
• Data mask function by UDQM or LDQM
• Internal four banks operation
• Auto refresh and self refresh
• 4096 refresh cycles / 64ms
• Programmable Burst Length and Burst Type
- 1, 2, 4, 8 or Full page for Sequential Burst
- 1, 2, 4 or 8 for Interleave Burst
• Programmable CAS Latency ; 2, 3 Clocks
ORDERING INFORMATION
Note : VDD(Min) of HY57V641620HG(L)T-5/55/6 is 3.135V
Part No. Clock Frequency Power Organization Interface Package
HY57V641620HGT-5/55/6/7 200/183/166/143MHz
Normal
4Banks x 1Mbits
x16
LVTTL 400mil 54pin TSOP II
HY57V641620HGT-K 133MHz
HY57V641620HGT-H 133MHz
HY57V641620HGT-8 125MHz
HY57V641620HGT-P 100MHz
HY57V641620HGT-S 100MHz
HY57V641620HGLT-5/55/6/7 200/183/166/143MHz
Low power
HY57V641620HGLT-K 133MHz
HY57V641620HGLT-H 133MHz
HY57V641620HGLT-8 125MHz
HY57V641620HGLT-P 100MHz
HY57V641620HGLT-S 100MHz
剩余11页未读，继续阅读
资源评论
