SDRAM 128Mb F-die (x4, x8, x16)
Preliminary
CMOS SDRAM
128Mb F-die SDRAM Specification
Revision 0.2
November. 2003
* Samsung Electronics reserves the right to change products or specification without notice.
Rev. 0.2 November. 2003
SDRAM 128Mb F-die (x4, x8, x16)
Revision History
Revision 0.0 (Agust, 2003)
- First release.
Revision 0.1 (November, 2003)
- completed DC characteristics.
Revision 0.2 (November, 2003)
- Preliminary spec release.
Preliminary
CMOS SDRAM
Rev. 0.2 November. 2003
SDRAM 128Mb F-die (x4, x8, x16)
Preliminary
CMOS SDRAM
8M x 4Bit x 4 Banks / 4M x 8Bit x 4 Banks / 2M x 16Bit x 4 Banks SDRAM
FEATURES
• JEDEC standard 3.3V power supply
• LVTTL compatible with multiplexed address
• Four banks operation
• MRS cycle with address key programs
-. CAS latency (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 (x4,x8) & L(U)DQM (x16) for masking
• Auto & self refresh
• 64ms refresh period (4K Cycle)
GENERAL DESCRIPTION
The K4S280432F / K4S280832F / K4S281632F is 134,217,728 bits synchronous high data rate Dynamic RAM organized as 4 x
8,388,608 words by 4 bits / 4 x 4,194,304 words by 8 bits / 4 x 2,097,152 words by 16 bits, fabricated with SAMSUNG′s high perfor-
mance 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 length and programmable latencies allow the same device to
be useful for a variety of high bandwidth, high performance memory system applications.
Ordering Information
Part No.
K4S280432F-TC(L)75
K4S280832F-TC(L)75
K4S281632F-TC(L)60/75
Orgainization
32M x 4
16M x 8
8M x 16
Max Freq.
133MHz
133MHz
166MHz
Interface
LVTTL
LVTTL
LVTTL
Package
54pin TSOP
54pin TSOP
54pin TSOP
Organization
32Mx4
16Mx8
8Mx16
Row Address
A0~A11
A0~A11
A0~A11
Column Address
A0-A9, A11
A0-A9
A0-A8
Row & Column address configuration
Rev. 0.2 November. 2003
SDRAM 128Mb F-die (x4, x8, x16)
Package Physical Dimension
Preliminary
CMOS SDRAM
0~8°C
0.25
TYP
0.010
#54
#28
0.45~0.75
0.018~0.030
0.05
MIN
0.002
( 0.50 )
0.020
11.76±
0.20
0.463±
0.008
#1
22.62
MAX
0.891
22.22
0.875
0.10
MAX
0.004
(
0.71
)
0.028
±
0.10
±
0.004
#27
0.21
0.008
±
0.05
±
0.002
1.00
0.039
±
0.10
±
0.004
0.30
-0.05
0.012
+0.004
-0.002
+0.10
0.80
0.0315
54Pin TSOP Package Dimension
Rev. 0.2 November. 2003
10.16
0.400
0.125
+0.075
-0.035
0.005
+0.003
-0.001
1.20
MAX
0.047
SDRAM 128Mb F-die (x4, x8, x16)
FUNCTIONAL BLOCK DIAGRAM
Preliminary
CMOS SDRAM
I/O Control
LWE
LDQM
Data Input Register
Bank Select
8M x 4 / 4M x 8 / 2M x 16
Sense AMP
8M x 4 / 4M x 8 / 2M x 16
8M x 4 / 4M x 8 / 2M x 16
8M x 4 / 4M x 8 / 2M x 16
Refresh Counter
Output Buffer
Row Decoder
Row Buffer
DQi
Address Register
CLK
ADD
Column Decoder
Col. Buffer
Latency & Burst Length
LRAS
LCBR
LCKE
LRAS
LCBR
LWE
LCAS
Timing Register
Programming Register
LWCBR
LDQM
CLK
CKE
CS
RAS
CAS
WE
L(U)DQM
* Samsung Electronics reserves the right to change products or specification without notice.
Rev. 0.2 November. 2003
Embedded System
京公网安备 11010802033920号
EEWORLD
