KM48V8000B,KM48V8100B
CMOS DRAM
8M x 8bit CMOS Dynamic RAM with Fast Page Mode
DESCRIPTION
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, -5 or -6), 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
FEATURES
• CAS-before-RAS refresh capability
•
Part Identification
• 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
- KM48V8000B/B-L(3.3V, 8K Ref.)
- KM48V8100B/B-L(3.3V, 4K Ref.)
•
Active Power Dissipation
Unit : mW
• Available in Plastic SOJ and TSOP(II) packages
• +3.3V±0.3V power supply
Speed
-45
-5
8K
4K
360
324
288
468
432
396
-6
• Refresh Cycles
Part
NO.
Refresh
cycle
Refresh time
FUNCTIONAL BLOCK DIAGRAM
Normal
L-ver
KM48V8000B*
KM48V8100B
8K
4K
RAS
CAS
W
64ms
128ms
Vcc
Vss
Control
Clocks
VBB Generator
Row Decoder
* Access mode & RAS only refresh mode
: 8K cycle/64ms(Normal), 8K cycle/128ms(L-ver.)
CAS-before-RAS & Hidden refresh mode
Refresh Timer
Data in
Buffer
: 4K cycle/64ms(Normal), 4K cycle/128ms(L-ver.)
Refresh Control
Refresh Counter
Memory Array
8,388,608 x 8
Cells
DQ0
to
DQ7
•
Performance Range
Speed
Data out
Buffer
Row Address Buffer
Col. Address Buffer
tRAC
45ns
50ns
60ns
tCAC
12ns
13ns
15ns
tRC
tPC
A0~A12
(A0~A11)*1
OE
-45
-5
80ns
90ns
110ns
31ns
35ns
40ns
A0~A9
(A0~A10)*1
Column Decoder
-6
Note) *1 : 4K Refresh
SAMSUNG ELECTRONICS CO., LTD. reserves the right to
change products and specifications without notice.