HB56UW272EJN Series,
HB56UW264EJN Series
2,097,152-word
×
72-bit High Density Dynamic RAM Module
2,097,152-word
×
64-bit High Density Dynamic RAM Module
ADE-203-717A (Z)
Rev.1.0
Jan. 27, 1997
Description
The HB56UW272EJN, HB56UW264EJN 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 HB56UW272EJN is a 2M
×
72 dynamic RAM module, mounted 9 pieces of 16-Mbit DRAM
(HM51W17805) sealed in SOJ package and 1 pieces of serial EEPROM (24C02) for Presence Detect (PD).
The HB56UW264EJN is a 2M
×
64 dynamic RAM module, mounted 8 pieces of 16-Mbit DRAM
(HM51W17805) sealed in SOJ package and 1 pieces of serial EEPROM (24C02) for Presence Detect (PD).
The HB56UW272EJN, HB56UW264EJN offer Extended Data Out (EDO) Page Mode as a high speed
access mode. An outline of the HB56UW272EJN, HB56UW264EJN is 168-pin socket type package (dual
lead out). Therefore, the HB56UW272EJN, HB56UW264EJN make high density mounting possible
without surface mount technology. The HB56UW272EJN, HB56UW264EJN provide common data inputs
and outputs. Decoupling capacitors are mounted on the module board.
Features
•
168-pin socket type package (Dual lead out)
Outline: 133.35 mm (Length)
×
25.40 mm (Height)
×
5.28 mm (Thickness)
Lead pitch: 1.27 mm
•
Single 3.3 V (±0.3 V) supply
•
High speed
Access time: t
RAC
= 50/60/70ns (max)
t
CAC
= 13/15/18ns (max)
•
Low power dissipation
Active mode: 3.56/3.24/2.92 W (max) (HB56UW272EJN Series)
3.17/2.88/2.59 W (max) (HB56UW264EJN Series)
Standby mode (TTL): 64.8 mW (max) (HB56UW272EJN Series)
(TTL): 57.6 mW (max) (HB56UW264EJN Series)
(CMOS): 4.86 mW (max) (L-version) (HB56UW272EJN Series)
(CMOS): 4.32 mW (max) (L-version) (HB56UW264EJN Series)
HB56UW272EJN Series, HB56UW264EJN Series
•
JEDEC standard outline unbuffered 8-byte DIMM
•
EDO page mode capability
•
Refresh period
2048 refresh cycles: 32 ms
128 ms (L-version)
•
4 variations of refresh
RAS-only
refresh
CAS-before-RAS
refresh
Hidden refresh
Self refresh (L-version)
Ordering Information
Type No.
HB56UW272EJN-5
HB56UW272EJN-6
HB56UW272EJN-7
HB56UW272EJN-5L
HB56UW272EJN-6L
HB56UW272EJN-7L
HB56UW264EJN-5
HB56UW264EJN-6
HB56UW264EJN-7
HB56UW264EJN-5L
HB56UW264EJN-6L
HB56UW264EJN-7L
Access time
50 ns
60 ns
70 ns
50 ns
60 ns
70 ns
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
Front side
Back side
1 pin 10 pin 11 pin
85 pin 94 pin 95 pin
40 pin 41 pin
124 pin 125 pin
84 pin
168 pin
2
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