KM44C4000C, KM44C4100C

CMOS DRAM

KM44V4000C, KM44V4100C

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 consump-

tion(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.

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.

• Part Identification

- 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.)

• Fast Page Mode operation

• CAS-before-RAS refresh capability

• RAS-only and Hidden refresh capability

• 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

• JEDEC Standard pinout

• Available in Plastic SOJ and TSOP(II) packages

• Single +5V

±10% power supply (5V product)

• Single +3.3V

±0.3V power supply (3.3V product)

Control

Clocks

RAS

CAS

W

Vcc

Vss

DQ0

to

DQ3

A0-A11

A0 - A9

Memory Array

4,194,304 x 4

Cells

SAMSUNG ELECTRONICS CO., LTD. reserves the right to

change products and specifications without notice.

4M x 4Bit CMOS Dynamic RAM with Fast Page Mode

DESCRIPTION

FEATURES

FUNCTIONAL BLOCK DIAGRAM

• Refresh Cycles

Part

NO.

Refresh

cycle

Refresh period

Normal

L-ver

C4000C

5V

4K

64ms

128ms

V4000C

3.3V

C4100C

5V

2K

32ms

V4100C

3.3V

• Performance Range

Speed

Remark

-5

50ns

13ns

90ns

35ns

5V/3.3V

-6

60ns

15ns

110ns

40ns

5V/3.3V

• Active Power Dissipation

Speed

3.3V

5V

4K

2K

4K

2K

-5

324

396

495

605

-6

288

360

440

550

Unit : mW

Data out

Buffer

Data in

Buffer

OE

Col. Address Buffer

Row Address Buffer

Refresh Counter

Refresh Control

Refresh Timer

Column Decoder

Row Decoder

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