KM48C2000B, KM48C2100B
CMOS DRAM
KM48V2000B, KM48V2100B
This is a family of 2,097,152 x 8 bit Fast Page Mode CMOS DRAMs. Fast Page Mode offers high speed random access of memory cells
within the same row. Power supply voltage (+5.0V or +3.3V), refresh cycle (2K Ref. or 4K Ref.), access time (-5,-6 or -7), power consumption(Normal or Low power) and package type(SOJ or TSOP-II) are optional features of this family. All of this family have CASbefore-RAS refresh, RAS-only refresh and Hidden refresh capabilities. Furthermore, Self-refresh operation is available in L-version.
This 2Mx8 Fast Page Mode DRAM family is fabricated using Samsung's advanced CMOS process to realize high band-width, low power
consumption and high reliability.
It may be used as graphic memory unit for microcomputer, personal computer and portable machines.
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Part Identification
- KM48C2000B/B-L (5V, 4K Ref.)
- KM48C2100B/B-L (5V, 2K Ref.)
- KM48V2000B/B-L (3.3V, 4K Ref.)
- KM48V2100B/B-L (3.3V, 2K Ref.)
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Fast Page Mode operation
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Byte/Word Read/Write operation
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CAS-before-RAS refresh capability
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RAS-only and Hidden refresh capability
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Self-refresh capability (L-ver only)
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Fast parallel test mode capability
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TTL(5V)/LVTTL(3.3V) compatible inputs and outputs
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Early Write or output enable controlled write
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JEDEC Standard pinout
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Available in Plastic SOJ and TSOP(II) packages
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Single +5V
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10% power supply (5V product)
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Single +3.3V
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0.3V power supply (3.3V product)
Control
Clocks
VBB Generator
Refresh Timer
Refresh Control
Refresh Counter
Row Address Buffer
Col. Address Buffer
Row Decoder
Column Decoder
RAS
CAS
W
Vcc
Vss
DQ0
to
DQ7
A0-A11
(A0 - A10)*1
A0 - A8
(A0 - A9)*1
Memory Array
2,097,152 x 8
Cells
SAMSUNG ELECTRONICS CO., LTD. reserves the right to
change products and specifications without notice.
2M x 8Bit CMOS Dynamic RAM with Fast Page Mode
DESCRIPTION
FEATURES
FUNCTIONAL BLOCK DIAGRAM
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Refresh Cycles
Part
NO.
VCC
Refresh
cycle
Refresh period
Normal L-ver
C2000B 5V
4K 64ms
128ms
V2000B 3.3V
C2100B 5V
2K 32ms
V2100B 3.3V
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Performance Range
Speed
tRAC tCAC tRC tPC
Remark
-5 50ns 13ns 90ns 35ns 5V/3.3V
-6 60ns 15ns 110ns 40ns 5V/3.3V
-7 70ns 20ns 130ns 45ns 5V/3.3V
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Active Power Dissipation
Speed
3.3V 5V
4K 2K 4K 2K
-5 324 396 495 605
-6 288 360 440 550
-7 252 324 385 495
Unit : mW
Sense Amps & I/O
Data out
Buffer
Data in
Buffer
OE
Note) *1 : 2K Refresh