HB56EW472ETC-A Series,
HB56EW872ETK-A Series
32/64MB Buffered EDO DRAM DIMM
4-Mword
×
72-bit, 4k Refresh, 1 Bank Module
(4 pcs of 4M
×
16 & 2 pcs of 4M
×
4 components)
8-Mword
×
72-bit, 4k Refresh, 2 Bank Module
(8 pcs of 4M
×
16 & 4 pcs of 4M
×
4 components)
ADE-203-844 (Z)
Preliminary, Rev. 0.0
Nov. 14, 1997
Description
The HB56EW472ETC-A, HB56EW872ETK-A belong to 8 Byte DIMM (Dual In-line Memory Module)
family, and have been developed as an optimized main memory solution for 4 and 8 Byte processor
applications. The HB56EW472ETC-A is a 4M
×
72 dynamic RAM module, mounted 4 pieces of 64-Mbit
DRAM (HM5165165A) sealed in TSOP package and 2 pieces of 16-Mbit DRAM (HM51W16405) sealed
in TSOP package, 2 pieces of 16-bit BiCMOS line driver sealed in TSSOP package. The
HB56EW872ETK-A is a 8M
×
72 dynamic RAM module, mounted 8 pieces of 64-Mbit DRAM
(HM5165165A) sealed in TSOP package and 4 pieces of 16-Mbit DRAM (HM51W16405) sealed in TSOP
package, 2 pieces of 16-bit BiCMOS line driver sealed in TSSOP package. They offer Extended Data Out
(EDO) Page Mode as a high speed access mode. An outline of the HB56EW472ETC-A,
HB56EW872ETK-A is 168-pin socket type package (dual lead out). Therefore, the HB56EW472ETC-A,
HB56EW872ETK-A make high density mounting possible without surface mount technology. They
provide common data inputs and outputs. Decoupling capacitors are mounted TSOP on its module board.
Features
•
168-pin socket type package (Dual lead out)
Lead pitch: 1.27 mm
•
Single 3.3 V supply: 3.3 V +0.3 V/–0.15 V (HB56EW472ETC-5AR, HB56EW872ETK-5AR)
3.3 V
±
0.3 V (HB56EW472ETC-6A/7A, HB56EW872ETK-6A/7A)
•
High speed
Access time: t
RAC
= 50 ns/60 ns /70 ns (max)
Access time: t
CAC
= 18 ns /20 ns /23 ns (max)
•
Low power dissipation
Active mode:
3.92 W/3.20 W/2.77 W (max) (HB56EW472ETC-A Series)
3.96 W/3.31 mW/2.88 mW (max) (HB56EW872ETK-A Series)
HB56EW472ETC-A Series, HB56EW872ETK-A Series
79.2 mW (max) (HB56EW472ETC-A Series)
122.4 mW (max) (HB56EW872ETK-A Series)
•
Buffered input except
RAS
and DQ
•
4 byte interleave enabled, dual address input (A0/B0)
•
EDO page mode capability
•
4,096 refresh cycle: 64 ms
•
2 variations of refresh
RAS-only
refresh
CAS-before-RAS
refresh
Standby mode (TTL):
Ordering Information
Type No.
HB56EW472ETC-5AR
HB56EW472ETC-6A
HB56EW472ETC -7A
HB56EW872ETK-5AR
HB56EW872ETK-6A
HB56EW872ETK -7A
Access time
50 ns
60 ns
70 ns
50 ns
60 ns
70 ns
Package
168-pin dual lead out socket type
Contact pad
Gold
Pin Arrangement
1 pin 10 pin 11 pin
40 pin 41 pin
84 pin
85 pin 94 pin 95 pin 124 pin 125 pin
168 pin
2
HB56EW472ETC-A Series, HB56EW872ETK-A Series
Presence Detect Pin Assignment
(HB56EW472ETC-A Series)
PDE
= Low
Pin name
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
Pin No.
79
163
80
164
81
165
82
166
50 ns
1
1
0
1
1
0
0
0
60 ns
1
1
0
1
1
1
1
0
70 ns
1
1
0
1
1
0
1
0
PDE
= High
All
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
1 : High level (driver output)
0 : Low level (driver output)
Presence Detect Pin Assignment
(HB56EW872ETK-A Series)
PDE
= Low
Pin name
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
Pin No.
79
163
80
164
81
165
82
166
50 ns
0
0
1
1
1
0
0
0
60 ns
0
0
1
1
1
1
1
0
70 ns
0
0
1
1
1
0
1
0
PDE
= High
All
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
1 : High level (driver output)
0 : Low level (driver output)
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