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IS43R16320AのメーカーはIntegrated Silicon Solutionです、この部品の機能は「32Meg x 16 512-MBIT DDR SDRAM」です。 |
部品番号 | IS43R16320A |
| |
部品説明 | 32Meg x 16 512-MBIT DDR SDRAM | ||
メーカ | Integrated Silicon Solution | ||
ロゴ | |||
このページの下部にプレビューとIS43R16320Aダウンロード(pdfファイル)リンクがあります。 Total 18 pages
IS43R16320A
ISSI®
32Meg x 16
512-MBIT DDR SDRAM
FEATURES
• Clock Frequency: 166 MHz
• Power supply (VDD and VDDQ)
DDR 333: 2.5V + 0.2V
• SSTL 2 interface
• Four internal banks to hide row Pre-charge
and Active operations
• Commands and addresses register on positive
clock edges (CK)
• Bi-directional Data Strobe signal for data cap-
ture
• Differential clock inputs (CK and CK) for
two data accesses per clock cycle
• Data Mask feature for Writes supported
• DLL aligns data I/O and Data Strobe transitions
with clock inputs
• Programmable burst length for Read and Write
operations
• Programmable CAS Latency (2 or 2.5 clocks)
• Programmable burst sequence: sequential or
interleaved
www.Da•taSBheuerts4Ut .ccoomncatenation and truncation supported
for maximum data throughput
• Auto Pre-charge option for each Read or Write
burst
• 8192 refresh cycles every 64ms
• Auto Refresh and Self Refresh Modes
• Pre-charge Power Down and Active Power
Down Modes
• Lead-free package
MARCH 2006
DEVICE OVERVIEW
ISSI’s 512-Mbit DDR SDRAM achieves high-speed data
transfer using pipeline architecture and two data word
accesses per clock cycle. The 536,870,912-bit memory
array is internally organized as four banks of 128M-bit to
allow concurrent operations. The pipeline allows Read
and Write burst accesses to be virtually continuous, with
the option to concatenate or truncate the bursts. The
programmable features of burst length, burst sequence
and CAS latency enable further advantages. The device
is available in 16-bit data word size. Input data is regis-
tered on the I/O pins on both edges of Data Strobe
signal(s), while output data is referenced to both edges of
Data Strobe and both edges of CK. Commands are
registered on the positive edges of CK. Auto Refresh,
Active Power Down, and Pre-charge Power Down modes
are enabled by using clock enable (CKE) and other
inputs in an industry-standard sequence. All input and
output voltage levels are compatible with SSTL 2.
KEY TIMING PARAMETERS
Parameter
Clock Cycle Time
CAS Latency = 3
CAS Latency = 2.5
CAS Latency = 2
Clock Frequency
CAS Latency = 3
CAS Latency = 2.5
CAS Latency = 2
-6
DDR333
—
6
7.5
—
166
133
Unit
ns
ns
ns
MHz
MHz
MHz
Copyright © 2006 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. A
03/22/06
1
1 Page IS43R16320A
ISSI®
Mode Register Operation
BA1 BA0 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 Address Bus
0* 0*
Operating Mode
CAS Latency BT Burst Length
Mode Register
A12 - A9 A8 A7
0 00
0 10
A6 - A0
Valid
Valid
Operating Mode
Normal operation
Do not reset DLL
Normal operation
in DLL Reset
Reserved
A3
Burst
Type
0 Sequential
1 Interleave
CAS Latency
A6 A5 A4
000
001
010
011
100
101
110
111
Latency
Reserved
Reserved
2
Reserved
Reserved
Reserved
2.5
Reserved
* BA0 and BA1 must be 0, 0 to select the Mode Register
(vs. the Extended Mode Register).
www.DataSheet4U.com
Burst Length
A2 A1 A0 Burst Length
000
Reserved
001
2
010
4
011
8
100
Reserved
101
Reserved
110
Reserved
111
Reserved
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. A
03/22/06
3
3Pages IS43R16320A
Write Command
CK
CK
CKE
CS
RAS
CAS
WE
HIGH
A0-A9
A10
BA0, BA1
CA
EN AP
DIS AP
BA
ISSI®
CA = column address
BA = bank address
EN AP = enable Auto Precharge
DIS AP = disable Auto Precharge
Don’t Care
www.DataSheet4U.com
6 Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. A
03/22/06
6 Page | |||
ページ | 合計 : 18 ページ | ||
|
PDF ダウンロード | [ IS43R16320A データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
IS43R16320A | 32Meg x 16 512-MBIT DDR SDRAM | Integrated Silicon Solution |
IS43R16320D | 16Mx32 32Mx16 64Mx8 512Mb DDR SDRAM | Integrated Silicon Solution |
IS43R16320E | 512Mb DDR SDRAM | Integrated Silicon Solution |