KM44C4000C, KM44C4100C
KM44V4000C, KM44V4100C
CMOS DRAM
4M x 4Bit CMOS Dynamic RAM with Fast Page Mode
DESCRIPTION
This is a family of 4,194,304 x 4 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 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-beforeRAS refresh, RAS-only refresh and Hidden refresh capabilities. Furthermore, Self-refresh operation is available in L-version.
This 4Mx4 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 main memory for high level computer, microcomputer and personal computer.
FEATURES
• Fast Page Mode operation
• Part Identification
• CAS-before-RAS refresh capability
• RAS-only and Hidden refresh capability
- KM44C4000C/C-L (5V, 4K Ref.)
- KM44C4100C/C-L (5V, 2K Ref.)
- KM44V4000C/C-L (3.3V, 4K Ref.)
- KM44V4100C/C-L (3.3V, 2K Ref.)
• Self-refresh capability (L-ver only)
• Fast parallel test mode capability
• TTL(5V)/LVTTL(3.3V) compatible inputs and outputs
• Early Write or output enable controlled write
• Active Power Dissipation
• JEDEC Standard pinout
Unit : mW
3.3V
Speed
4K
• Available in Plastic SOJ and TSOP(II) packages
5V
2K
4K
• Single +5V±10% power supply (5V product)
2K
-5
324
396
495
605
-6
288
360
440
• Single +3.3V±0.3V power supply (3.3V product)
550
FUNCTIONAL BLOCK DIAGRAM
• Refresh Cycles
VCC
C4000C
5V
V4000C
5V
V4100C
Refresh period
Normal
3.3V
C4100C
Refresh
cycle
L-ver
RAS
CAS
W
3.3V
4K
Control
Clocks
Vcc
Vss
VBB Generator
64ms
Data in
128ms
2K
Refresh Timer
32ms
Refresh Control
Refresh Counter
• Performance Range
Speed
tRAC
tCAC
tRC
tPC
Remark
-5
50ns
13ns
90ns
35ns
5V/3.3V
-6
60ns
15ns
110ns
40ns
A0-A11
(A0 - A10) *1
A0 - A9
(A0 - A10) *1
Memory Array
4,194,304 x 4
Cells
Row Address Buffer
5V/3.3V
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
