Samsung K4S643232F-TL70, K4S643232F-TL50, K4S643232F-TL45, K4S643232F-TC55, K4S643232F-TC50 Datasheet

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K4S643232F CMOS SDRAM
2M x 32 SDRAM
512K x 32bit x 4 Banks
Synchronous DRAM
Revision 1.0
January 2002
Samsung Electronics reserves the right to change products or specification without notice.
- 1 -
Rev. 1.0 (Jan. 2002)
K4S643232F CMOS SDRAM
Revision History
Revision 1.0 (January 16, 2002)
• Defined DC spec.
Revision 0.1 (September 03, 2001) - Preliminary
• Added K4S643232F-TC/L55
Revision 0.0 (September 03, 2001) - Target Spec
• Initial draft
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Rev. 1.0 (Jan. 2002)
K4S643232F CMOS SDRAM
512K x 32Bit x 4 Banks Synchronous DRAM
GENERAL DESCRIPTIONFEATURES
• 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 for masking
• Auto & self refresh
15.6us refresh duty cycle
The K4S643232F is 67,108,864 bits synchronous high data rate Dynamic RAM organized as 4 x 524,288 words by 32 bits, fabricated with SAMSUNGs 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 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. Max Freq. Interface Package
K4S643232F-TC/L45 222MHz K4S643232F-TC/L50 200MHz K4S643232F-TC/L55 183MHz K4S643232F-TC/L60 166MHz K4S643232F-TC/L70 143MHz
LVTTL
86
TSOP(II)
FUNCTIONAL BLOCK DIAGRAM
Bank Select
Refresh Counter
Row Buffer
Address Register
CLK
ADD
LRAS
LCBR
LCKE
LRAS LCBR LWE LDQM
Data Input Register
Row Decoder Col. Buffer
LCAS LWCBR
512K x 32 512K x 32 512K x 32 512K x 32
Column Decoder
Latency & Burst Length
Programming Register
LWE
LDQM
Sense AMP
Output BufferI/O Control
DQi
Timing Register
CLK CKE CS RAS CAS WE DQM
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Samsung Electronics reserves the right to
*
change products or specification without notice.
Rev. 1.0 (Jan. 2002)
K4S643232F CMOS SDRAM
PIN CONFIGURATION (Top view)
VDD
DQ0
VDDQ
DQ1 DQ2
VSSQ
DQ3 DQ4
VDDQ
DQ5 DQ6
VSSQ
DQ7
N.C VDD
DQM0
WE CAS RAS
CS
N.C BA0 BA1
A10/AP
A0 A1 A2
DQM2
VDD
N.C
DQ16
VSSQ DQ17 DQ18
VDDQ DQ19 DQ20
VSSQ DQ21 DQ22
VDDQ
DQ23
VDD
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44
VSS DQ15 VSSQ DQ14 DQ13 VDDQ DQ12 DQ11 VSSQ DQ10 DQ9 VDDQ DQ8 N.C VSS DQM1 N.C N.C CLK CKE A9 A8 A7 A6 A5 A4 A3 DQM3 VSS N.C DQ31 VDDQ DQ30 DQ29 VSSQ DQ28 DQ27 VDDQ DQ26 DQ25 VSSQ DQ24 VSS
86Pin TSOP (II)
(400mil x 875mil)
(0.5 mm Pin pitch)
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Rev. 1.0 (Jan. 2002)
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