K4S643233F-S(D)E/N/I/P

Rev. 1.5 Dec. 2002

CMOS SDRAM

The K4S643233F is 67,108,864 bits synchronous high data rate

Dynamic RAM organized as 4 x 524,288 words by 32 bits, fabri-

cated with SAMSUNG

′s high performance CMOS technology.

Synchronous design allows precise cycle control with the use of

system clock. I/O transactions are possible on every clock cycle.

Range of operating frequencies, programmable burst lengths and

programmable latencies allow the same device to be useful for a

variety of high bandwidth and high performance memory system

applications.

• LVCMOS compatible with multiplexed address.

• Four banks operation.

• MRS cycle with address key programs.

-. CAS latency (1, 2 & 3).

-. Burst length (1, 2, 4, 8 & Full page).

-. Burst type (Sequential & Interleave).

• All inputs are sampled at the positive going edge of the system

clock .

• Burst read single-bit write operation.

• DQM for masking.

• Auto & self refresh.

• 64ms refresh period (4K cycle).

• Extended temperature operation (-25

°C to 85°C).

Industrial temperature operation ( -40

°C to 85°C).

• 90balls FBGA(-SXXX -Pb, -DXXX -Pb Free).

GENERAL DESCRIPTION

FEATURES

512K x 32Bit x 4 Banks SDRAM

FUNCTIONAL BLOCK DIAGRAM

*Samsung Electronics reserves the right to change products or specification without notice.

Bank Select

Data Input Register

512K x 32

512K x 32

Column Decoder

Latency & Burst Length

Programming Register

LCKE

LRAS

LCBR

LWE

LDQM

CLK

CKE

CS

RAS

CAS

WE

DQM

LWE

LDQM

DQi

CLK

ADD

LCAS

LWCBR

512K x 32

512K x 32

Timing Register

ORDERING INFORMATION

-S(D)E/N ; Normal/Low Power, Temp : -25

°C ~ 85°C.

-S(D)I/P ; Normal/Low Power, Temp : -40

°C ~ 85°C.

Note :

1. In case of 40MHz Frequency, CL1 can be supported.

Part No.

Max Freq.

Interface Package

K4S643233F-SE/N/I/P75

133MHz(CL=3)

105MHz(CL=2)

LVCMOS

90FBGA

Pb

K4S643233FSE/N/I/P1H

105MHz(CL=2)

K4S643233F-SE/N/I/P1L

105MHz(CL=3)

*1

K4S643233F-DE/N/I/P75

133MHz(CL=3)

105MHz(CL=2)

90FBGA

Pb Free

K4S643233F-DE/N/I/P1H

105MHz(CL=2)

K4S643233F-DE/N/I/P1L