- 您現在的位置：買賣IC網 > PDF目錄363908 > W981208AH (WINBOND ELECTRONICS CORP) 4M x 8 bit x 4 Banks SDRAM PDF資料下載
參數資料
| 型號： | W981208AH |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 4M x 8 bit x 4 Banks SDRAM |
| 中文描述： | 4米× 8位× 4個銀行內存 |
| 文件頁數： | 1/44頁 |
| 文件大小： | 2177K |
| 代理商： | W981208AH |
當前第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
W981208AH
4M x 8 bit x 4 Banks SDRAM
Revision 1.0 Publication Release Date: March, 1999
- 1 -
Features
3.3V
±
0.3V power supply
Up to 133MHz clock frequency
4,194,304 words x 4 banks x 8 bits organization
Auto Refresh and Self Refresh
CAS latency: 2 and 3
Burst Length: 1, 2, 4, 8 , and full page
Burst read, Single Writes Mode
Byte data controlled by DQM
Power-Down Mode
Auto-Precharge and controlled precharge
4k refresh cycles / 64ms
Interface: LVTTL
Package: TSOP II 54 pin, 400 mil - 0.80
General Description
W981208AH is a high speed synchronous dynamic random access memory (SDRAM) , organized as 4M words x 4 banks x
8 bits. Using pipelined architecture and 0.20um process technology, W981208AH delivers a data bandwidth of up to 133M ( -
75) bytes per second. To fully comply to the personal computer industrial standard, W981208AH is sorted into two speed
grades: -75 and -8H. The -75 is compliant to the PC133 specitication, The -8H is compliant to the PC100/CL2 specification.
Accesses to the SDRAM are burst oriented. Consecutive memory location in one page can be accessed at a burst length of
1, 2, 4, 8 or full page when a bank and row is selected by an ACTIVE command. Column addresses are automatically generated
by the SDRAM internal counter in burst operation. Random column read is also possible by providing its address at each clock
cycle. The multiple bank nature enables interleaving among internal banks to hide the precharging time.
By having a programmable Mode Register, the system can change burst length, latency cycle, interleave or sequential burst
to maximize its performance. W981208AH is ideal for main memory in high performance applications.
Key Parameters
Symbol
t
CK
Clock Cycle Time
t
AC
Access Time from CLK
t
RP
Precharge to Active Command
t
RCD
Active to Read/Write Command
I
CC1
Operation Current ( Single bank )
I
CC4
Burst Operation Current
I
CC6
Self-Refresh Current
Description
min/max
min
max
min
min
max
max
max
-75 (PC133)
7.5ns
5.4ns
20ns
20ns
85mA
120mA
2mA
-8H (PC100)
8ns
6ns
20ns
20ns
80mA
110mA
2mA
相關PDF資料 |
PDF描述 |
|---|---|
| W981208BH | 4M x 4 BANKS x 8 BIT SDRAM |
| W981208AH-75 | x8 SDRAM |
| W981208AH-8H | x8 SDRAM |
| W981208BH-7 | x8 SDRAM |
| W981208BH-75 | x8 SDRAM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W981208AH-75 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:x8 SDRAM |
| W981208AH-8H | 制造商:WINBOND 制造商全稱:Winbond 功能描述:x8 SDRAM |
| W981208BH | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4M x 4 BANKS x 8 BIT SDRAM |
| W981208BH-7 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:x8 SDRAM |
| W981208BH-75 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:x8 SDRAM |
發布緊急采購，3分鐘左右您將得到回復。