Transcend JetRam 512MB DDR SO-DIMM CL2.5 JM467D643A-60 User Manual
Product codes
JM467D643A-60
J
J
J
M
M
M
4
4
4
6
6
6
7
7
7
D
D
D
6
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6
4
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4
3
3
3
A
A
A
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6
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6
0
0
0
200PIN DDR333 Unbuffered SO-DIMM
512MB With 64Mx8 CL2.5
Transcend Information Inc.
1
Description
The JM467D643A-60 is a 64M x 64bits Double Data Rate
SDRAM high-density for DDR333. The JM467D643A-60
consists of 8pcs CMOS 64Mx8 bits Double Data Rate
SDRAMs in 66 pin TSOP-II 400mil packages, and a 2048
bits serial EEPROM on a 200-pin printed circuit board.
The JM467D643A-60 is a Dual In-Line Memory Module
and is intended for mounting into 200-pin edge connector
sockets.
Synchronous design allows precise cycle control with the
use of system clock. Data I/O transactions are possible
on both edges of DQS. Range of operation frequencies,
programmable latencies allow the same device to be
useful for a variety of high bandwidth, high performance
memory system applications.
Features
• Power supply: VDD: 2.5V ± 0.2V, VDDQ: 2.5V ± 0.2V
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Max clock Freq: 166MHZ.
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Double-data-rate architecture; two data transfers per
clock cycle
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Differential clock inputs (CK and /CK)
• DLL aligns DQ and DQS transition with CK transition
• Auto and Self Refresh 7.8us refresh interval.
• Data I/O transactions on both edge of data strobe.
• Edge aligned data output, center aligned data input.
• Serial Presence Detect (SPD) with serial EEPROM
• SSTL-2 compatible inputs and outputs.
• MRS cycle with address key programs.
• Auto and Self Refresh 7.8us refresh interval.
• Data I/O transactions on both edge of data strobe.
• Edge aligned data output, center aligned data input.
• Serial Presence Detect (SPD) with serial EEPROM
• SSTL-2 compatible inputs and outputs.
• MRS cycle with address key programs.
CAS Latency (Access from column address) : 2.5
Burst Length (2,4,8 )
Data Sequence (Sequential & Interleave)
Placement
A
B
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E
I
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K
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PCB: 09-1220