K4S643233F Datasheet, PDF (2/8 Pages) Samsung semiconductor – 2Mx32 Mobile SDRAM 90FBGA CMOS SDRAM

K4S643233F-S(D)E/N/I/P
CMOS SDRAM
512K x 32Bit x 4 Banks SDRAM
FEATURES
• 3.0V & 3.3 power supply.
• 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).
FUNCTIONAL BLOCK DIAGRAM
GENERAL DESCRIPTION
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.
ORDERING INFORMATION
Part No.
Max Freq. Interface Package
K4S643233F-SE/N/I/P75
K4S643233FSE/N/I/P1H
K4S643233F-SE/N/I/P1L
K4S643233F-DE/N/I/P75
K4S643233F-DE/N/I/P1H
K4S643233F-DE/N/I/P1L
133MHz(CL=3)
105MHz(CL=2)
105MHz(CL=2)
105MHz(CL=3)^*1
133MHz(CL=3)
105MHz(CL=2)
105MHz(CL=2)
105MHz(CL=3)^*1
LVCMOS
90FBGA
Pb
90FBGA
Pb Free
-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.
Data Input Register
CLK
ADD
Bank Select
512K x 32
512K x 32
512K x 32
512K x 32
Column Decoder
LCKE
LRAS
LCBR
LWE
LCAS
Latency & Burst Length
Programming Register
LWCBR
Timing Register
LWE
LDQM
DQi
LDQM
CLK
CKE
CS
RAS
CAS
WE
DQM
*Samsung Electronics reserves the right to change products or specification without notice.
Rev. 1.5 Dec. 2002