HB56UW1672EJN Series
HB56UW1664EJN Series
16777216-word
×
72-bit High Density Dynamic RAM Module
16777216-word
×
64-bit High Density Dynamic RAM Module
ADE-203-643 (Z)
Preliminary
Rev. 0.0
Aug. 31, 1996
Description
The HB56UW1672EJN Series, HB56UW1664EJN Series belong to 8-byte DIMM (Dual in-line Memory
Module) family , and have been developed an optimized main memory solution for 4 and 8-byte processor
applications. The HB56UW1672EJN Series is a 16 M
×
72 Dynamic RAM Module, mounted 18 pieces of
64-Mbit DRAM (HM5164405AJ) sealed in SOJ package and 1 piece of serial EEPROM (24C02) for
Presence Detect (PD). The HB56UW1664EJN Series is a 16 M
×
64 Dynamic RAM Module, mounted 16
pieces of 64-Mbit DRAM (HM5164405AJ) sealed in SOJ package and 1 piece of serial EEPROM (24C02)
for Presence Detect (PD). The HB56UW1672EJN Series, HB56UW1664EJN Series offer Extended Data
Out (EDO) Page Mode as a high speed access mode. An outline of the HB56UW1672EJN Series,
HB56UW1664EJN Series are 168-pin socket type package (dual lead out). Therefore, the
HB56UW1672EJN Series, HB56UW1664EJN Series make high density mounting possible without surface
mount technology. The HB56UW1672EJN Series, HB56UW1664EJN Series provide common data inputs
and outputs. Decoupling capacitors are mounted beside each SOJ on the its module board.
Features
•
168-pin socket type package (Dual lead out)
Outline: 133.35 mm (Length)
×
25.40 mm (Height)
×
9.00 mm (Thickness)
Lead pitch : 1.27 mm
•
Single 3.3 V (±0.3 V)
•
High speed
Access time: t
RAC
= 60 ns/70 ns (max)
Access time: t
CAC
= 15 ns/18 ns (max)
Preliminary: This document contains information on a new product. Specifications and information
contained herein are subject to change without notice.
HB56UW1672EJN Series, HB56UW1664EJN Series
•
Low power dissipation
Active mode: 8.42 W/7.13W (max) (HB56UW1672EJN Series)
Active mode: 7.45 W/6.34W (max) (HB56UW1664EJN Series)
Standby mode (TTL): 129.6 mW (max) (HB56UW1672EJN Series)
Standby mode (TTL): 115.2 mW (max) (HB56UW1664EJN Series)
Standby mode (CMOS): 64.8 mW (max) (HB56UW1672EJN Series)
Standby mode (CMOS): 57.6 mW (max) (HB56UW1664EJN Series)
•
JEDEC standard outline unbuffered 8-byte DIMM
•
EDO page mode capability
•
8192 refresh cycles: 64 ms
•
3 variations of refresh
RAS-only
refresh
CAS-before-RAS
refresh
Hidden refresh
•
TTL compatible
Ordering Information
Type No.
HB56UW1672EJN-6A
HB56UW1672EJN-7A
HB56UW1664EJN-6A
HB56UW1664EJN-7A
Access time
60 ns
70 ns
60 ns
70 ns
Package
168-pin dual lead out
socket type
Contact pad
Gold
2
HB56UW1672EJN Series, HB56UW1664EJN Series
Pin Description
Pin name
A0 to A12
Function
Address input
Row address
Column address
Refresh address
DQ0 to DQ63
RAS0, RAS2
CAS0
to
CAS7
WE0, WE2
OE0, OE2
SDA
SCL
SA0 to SA2
CB0 to CB7*
1
V
CC
V
SS
NC
Note:
Data input/output
Row address strobe
Column address strobe
Read/Write enable
Output enable
Serial data out (bit0 to bit7)
Clock for presence detect
Serial address input
Check bit
Power supply
Ground
No connection
1. This function is supported only HB56UW1672EJN Series.
A0 to A12
A0 to A10
A0 to A12
5