Semiconductor Group
1
3.3V 2M
64-Bit EDO-DRAM Module
3.3V 2M x 72-Bit EDO-DRAM Module
168pin unbuffered DIMM Module
with serial presence detect
HYM64V2005GU-50/-60
HYM72V2005GU-50/-60
168 Pin JEDEC Standard, Unbuffered 8 Byte Dual In-Line Memory Module
for PC main memory applications
1 bank 2M x 64, 2M x 72 organisation
Optimized for byte-write non-parity or ECC applications
Extended Data Out (EDO)
Performance:
Single +3.3 V
0.3 V Power Supply
CAS-before-RAS refresh, RAS-only-refresh
Decoupling capacitors mounted on substrate
All inputs, outputs and clocks are fully LV-TTL compatible
Serial presence detects (optional)
Utilizes 2M
8 -DRAMs in SOJ packages
2048 refresh cycles / 32 ms with 11 / 10 addressing (Row / Column)
Gold contact pad
Card Size: 133,35mm x 25,40 mm x 5,30 mm
This DRAM product module family is intended to be fully pin and architecture compatible
with the 168pin unbuffered SDRAM DIMM module family
-50 -60
tRAC
RAS Access Time
50 ns
60 ns
tCAC
CAS Access Time
13 ns
15 ns
tAA
Access Time from Address
25 ns
30 ns
tRC
Cycle Time
84 ns
104 ns
tHPC
EDO Mode Cycle Time
20 ns
25 ns
1
2.97
HYM 64(72)V2005GU-50/-60
2M x 64/72 DRAM Module
Semiconductor Group
2
The HYM64(72)V2005GU-50/-60 are industry standard 168-pin 8-byte Dual In-Line Memory
Modules (DIMMs) which are organized as 2M x 64 and 2M x 72 high speed memory arrays
designed with EDO DRAMs for non-parity and ECC applications. The DIMMs use eight 2M x 8 EDO
DRAMs for the 2M x 64 organisation and nine 2M x 8 DRAMs for the 2M x 72 organisation, both in
SOJ packages. Decoupling capacitors are mounted on the PC board.
The DIMMs use optional serial presence detects implemented via a serial E
2
PROM using the two
pin I
2
C protocol. The first 128 bytes are utilized by the DIMM manufacturer and the second 128
bytes of serial PD data are available to the customer.
All 168-pin DIMMs provide a high performance, flexible 8-byte interface in a 133,35 mm long space-
saving footprint.
Ordering Information
Pin Names
Type
Ordering
Code
Package
Descriptions
HYM 64V2005GU-50
Q67100-Q2180
L-DIM-168-11
2M x 64 DRAM module (access time 50 ns)
HYM 64V2005GU-60
Q67100-Q2181
L-DIM-168-11
2M x 64 DRAM module (access time 60 ns)
HYM 72V2005GU-50
Q67100-Q2182
L-DIM-168-11
2M x 72 DRAM module (access time 50 ns)
HYM 72V2005GU-60
Q67100-Q2183
L-DIM-168-11
2M x 72 DRAM module (access time 60 ns)
A0-A10
Row Address Input
A0-A9
Column Address Input
DQ0 - DQ63
Data Input/Output
CB0-CB7
Check Bit Data Input/Output ( x72 only)
RAS0, RAS2
Row Address Strobe
CAS0 - CAS7
Column Address Strobe
WE0, WE2
Read / Write Input
OE0, OE2
Output Enable
Vcc
Power (+3.3 Volt)
Vss
Ground
SCL
Clock for Presence Detect
SDA
Serial Data Out for Presence Detect
SA0-SA2
Serial Presence Detect Addresses
N.C.
No Connection
DU
Don't use
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