HB56UW3272 Series
33554432-word
×
72-bit High Density Dynamic RAM Module
ADE-203-638 (Z)
Preliminary
Rev. 0.0
Aug. 30, 1996
Description
The HB56UW3272 Series belongs to 8-byte DIMM (Dual in-line Memory Module) family , and has been
developed an optimized main memory solution for 4 and 8-byte processor applications. The
HB56UW3272E Series is a 32 M
×
72 Dynamic RAM Module, mounted 36 pieces of 64-Mbit DRAM
(HM5164405ATT) sealed in TSOP package and 2 pieces of 16-bit BiCMOS line driver (74LVT16244)
sealed in TSSOP package. The HB56UW3272EJ Series is a 32 M
×
72 Dynamic RAM Module, mounted
36 pieces of 64-Mbit DRAM (HM5164405AJ) sealed in SOJ package and 2 pieces of 16-bit BiCMOS line
driver (74LVT16244) sealed in TSSOP package. The HB56UW3272 Series offers Extended Data Out
(EDO) Page Mode as a high speed access mode. An outline of the HB56UW3272 Series is 168-pin socket
type package (dual lead out). Therefore, the HB56UW3272 Series makes high density mounting possible
without surface mount technology. The HB56UW3272 Series provides common data inputs and outputs.
Decoupling capacitors are mounted beside each TSOP or SOJ on the its module board.
Features
•
168-pin socket type package (Dual lead out)
Outline : 133.35 mm (Length)
×
60.96 mm (Height)
×
4.00 mm (Thickness) (HB56UW3272E
Series)
Outline : 176.53 (133.35) mm (Length)
×
41.91 mm (Height)
×
9.00 mm (Thickness)
(HB56UW3272EJ Series)
Lead pitch : 1.27 mm
•
Single 3.3 V supply (±0.3 V)
•
High speed
Access time: t
RAC
= 60 ns/70 ns (max)
Access time: t
CAC
= 20 ns/23 ns (max)
•
Low power dissipation
Active mode: 8.78 W/7.49W (max)
Standby mode (TTL): 295.2 mW (max)
•
JEDEC standard outline buffered 8-byte DIMM
Preliminary: This document contains information on a new product. Specifications and information
contained herein are subject to change without notice.
HB56UW3272 Series
Presence Detect Pin Assignment
(Controlled by
PDE
pin) (HB56UW3272E Series)
PDE
= Low
Pin name
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
Pin No.
79
163
80
164
81
165
82
166
60 ns
1
0
0
0
1
1
1
0
70ns
1
0
0
0
1
0
1
0
PDE
= High
All
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
Note: 1: High level (driver output). 0: Low level (driver output)
Presence Detect Pin Assignment
(Controlled by
PDE
pin) (HB56UW3272EJ Series)
PDE
= Low
Pin name
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
Pin No.
79
163
80
164
81
165
82
166
60 ns
NC
V
SS
V
SS
V
SS
NC
NC
NC
V
SS
70ns
NC
V
SS
V
SS
V
SS
NC
V
SS
NC
V
SS
PDE
= High
All
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
5