KM44C4003C, KM44C4103C
CMOS DRAM
4M x 4Bit CMOS Quad CAS DRAM with Fast Page Mode
DESCRIPTION
This is a family of 4,194,304 x 4 bit Quad CAS with Fast Page Mode CMOS DRAMs. Fast Page Mode offers high speed random access
of memory cells within the same row. Refresh cycle (2K Ref. or 4K Ref.), access time (-5 or -6), power consumption(Normal or Low
power) and package type(SOJ or TSOP-II) 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. Four separate CAS pins provide for
seperate I/O operation allowing this device to operate in parity mode.
This 4Mx4 Fast Page Mode Quad CAS DRAM family is fabricated using Samsung′s advanced CMOS process to realize high bandwidth, low power consumption and high reliability.
FEATURES
• Fast Page Mode operation
• Part Identification
• Four seperate CAS pins provide for separate I/O operation
• CAS-before-RAS refresh capability
- KM44C4003C/C-L (5V, 4K Ref.)
- KM44C4103C/C-L (5V, 2K Ref.)
• RAS-only and Hidden refresh capability
• Self-refresh capability (L-ver only)
• Fast paralleltest mode capability
• TTL compatible inputs and outputs
• Active Power Dissipation
Unit : mW
• Early Write or output enable controlled write
• JEDEC Standard pinout
Refresh Cycle
Speed
2K
4K
• Available in Plastic SOJ and TSOP(II) packages
• Single +5V±10% power supply
-5
495
605
-6
440
550
FUNCTIONAL BLOCK DIAGRAM
• Refresh Cycles
Refresh
cycle
Normal
Refresh period
C4003C
4K
64ms
C4103C
2K
32ms
L-ver
RAS
CAS0 - 3
W
Control
Clocks
Vcc
Vss
VBB Generator
128ms
Data in
Refresh Timer
Refresh Control
• Performance Range
Refresh Counter
Speed
tRAC
tCAC
tRC
tPC
Remark
-5
50ns
13ns
90ns
35ns
5V/3.3V
-6
60ns
15ns
110ns
40ns
5V/3.3V
A0-A11
(A0 - A10) *1
A0 - A9
(A0 - A10) *1
Memory Array
4,194,304 x 4
Cells
Row Address Buffer
Col. Address Buffer
Buffer
Row Decoder
Column Decoder
Note) *1 : 2K Refresh
SAMSUNG ELECTRONICS CO., LTD. reserves the right to
change products and specifications without notice.
Sense Amps & I/O
Part
NO.
DQ0
to
DQ3
Data out
Buffer
OE
