KM48V8004B, KM48V8104B CMOS DRAM
This is a family of 8,388,608 x 8 bit Extended Data Out Mode CMOS DRAMs. Extended Data Out 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. Furthermore, Self-refresh operation is available in L-version. This 8Mx8 EDO Mode DRAM family is fabricated using Samsung′s advanced CMOS process to realize high band-width, low power consumption and high reliability.
• Part Identification
- KM48V8004B/B-L(3.3V, 8K Ref.)
- KM48V8104B/B-L(3.3V, 4K Ref.)
• Extended Data Out 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 Extended Data Out
DESCRIPTION
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Note) *1 : 4K Refresh
• Refresh Cycles
Part
NO.
Refresh
cycle
Refresh time
Normal L-ver
KM48V8004B* 8K
64ms 128ms
KM48V8104B 4K
Unit : mW
Sense Amps & I/O
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.)
• Active Power Dissipation
Speed 8K 4K
-45 360 468
-5 324 432
-6 288 396
¡Ü
Performance Range:
Speed
tRAC tCAC tRC tHPC
-45 45ns 12ns 74ns 17ns
-5 50ns 13ns 84ns 20ns
-6 60ns 15ns 104ns 25ns
Row Decoder
Column Decoder
VBB Generator
Refresh Timer
Refresh Control
Refresh Counter
Row Address Buffer
Col. Address Buffer
OE