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參數資料
型號: K4F660812D
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 8M x 8bit CMOS Dynamic RAM with Fast Page Mode
中文描述: 8米× 8位的CMOS動態隨機存儲器的快速頁面模式
文件頁數: 1/20頁
文件大小: 368K
代理商: K4F660812D
CMOS DRAM
K4F660812D,K4F640812D
This is a family of 8,388,608 x 8 bit Fast Page Mode CMOS DRAMs. Fast Page Mode offers high speed random access of memory cells
within the same row. Refresh cycle(4K Ref. or 8K Ref.), access time (-45, -50 or -60), power consumption(Normal or Low power) are
optional features of this family. All of this family have CAS-before-RAS refresh, RAS-only refresh and Hidden refresh capabilities. Fur-
thermore, Self-refresh operation is available in L-version. This 8Mx8 Fast Page Mode DRAM family is fabricated using Samsung
s
advanced CMOS process to realize high band-width, low power consumption and high reliability.
Fast Page Mode operation
CAS-before-RAS refresh capability
RAS-only and Hidden refresh capability
Self-refresh capability (L-ver only)
Fast parallel test mode capability
LVTTL(3.3V) compatible inputs and outputs
Early Write or output enable controlled write
JEDEC Standard pinout
Available in Plastic SOJ and TSOP(II) packages
+3.3V
±
0.3V power supply
Control
Clocks
RAS
CAS
W
Vcc
Vss
A0~A12
(A0~A11)*1
A0~A9
(A0~A10)*1
Memory Array
8,388,608 x 8
Cells
SAMSUNG ELECTRONICS CO., LTD.
reserves the right to
change products and specifications without notice.
8M x 8bit CMOS Dynamic RAM with Fast Page Mode
DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
Note) *1 : 4K Refresh
Refresh Cycles
Part
NO.
Refresh
cycle
Refresh time
Normal
L-ver
K4F660812D*
K4F640812D
8K
4K
64ms
128ms
Performance Range
Speed
-45
-50
-60
t
RAC
45ns
50ns
60ns
t
CAC
12ns
13ns
15ns
t
RC
80ns
90ns
110ns
t
PC
31ns
35ns
40ns
Active Power Dissipation
Speed
-45
-50
-60
8K
324
288
252
4K
432
396
360
Unit : mW
S
DQ0
to
DQ7
Data out
Buffer
Data in
Buffer
* Access mode & RAS only refresh mode
: 8K cycle/64ms(Normal), 8K cycle/128ms(L-ver.)
CAS-before-RAS & Hidden refresh mode
: 4K cycle/64ms(Normal), 4K cycle/128ms(L-ver.)
Row Decoder
Column Decoder
VBB Generator
Refresh Timer
Refresh Control
Refresh Counter
Row Address Buffer
Col. Address Buffer
OE
Part Identification
- K4F660812D-JC/L(3.3V, 8K Ref., SOJ)
- K4F640812D-JC/L(3.3V, 4K Ref., SOJ)
- K4F660812D-TC/L(3.3V, 8K Ref., TSOP)
- K4F640812D-TC/L(3.3V, 4K Ref., TSOP)
FEATURES
相關PDF資料
PDF描述
K4F641612C-TL50 4M x 16bit CMOS Dynamic RAM with Fast Page Mode
K4F641612C-L 4M x 16bit CMOS Dynamic RAM with Fast Page Mode
K4F641612C-TC 4M x 16bit CMOS Dynamic RAM with Fast Page Mode
K4F661612C-L 4M x 16bit CMOS Dynamic RAM with Fast Page Mode
K4F661612C-TC 4M x 16bit CMOS Dynamic RAM with Fast Page Mode
相關代理商/技術參數
參數描述
K4F661612B 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:4M x 16bit CMOS Dynamic RAM with Fast Page Mode
K4F661612B-L 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:4M x 16bit CMOS Dynamic RAM with Fast Page Mode
K4F661612B-TC 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:4M x 16bit CMOS Dynamic RAM with Fast Page Mode
K4F661612C 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:4M x 16bit CMOS Dynamic RAM with Fast Page Mode
K4F661612C-L 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:4M x 16bit CMOS Dynamic RAM with Fast Page Mode
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