HB56G236 Series, HB56G136 Series
2,097,152-word
×
36-bit High Density Dynamic RAM Module
1,048,576-word
×
36-bit High Density Dynamic RAM Module
ADE-203-702A (Z)
Rev.1.0
Dec. 27, 1996
Description
The HB56G236 is a 2M
×
36 dynamic RAM module, mounted 4 pieces of 16-Mbit DRAM (HM5118160)
sealed in SOJ package and 4 pieces of 2-Mbit DRAM (HM512200) sealed in SOJ package. The
HB56G136 is a 1M
×
36 dynamic RAM module, mounted 2 pieces of 16-Mbit DRAM (HM5118160)
sealed in SOJ package and 2 pieces of 2-Mbit DRAM (HM512200) sealed in SOJ package. An outline of
the HB56G236, HB56G136 is 72-pin single in-line package. Therefore, the HB56G236, HB56G136 make
high density mounting possible without surface mount technology. The HB56G236, HB56G136 provide
common data inputs and outputs. Decoupling capacitors are mounted on the module board.
Features
•
72-pin single in-line package
Outline: 107.95 mm (Length)
×
25.40 mm (Height)
×
9.14/5.28 mm (Thickness)
Lead pitch: 1.27 mm
Single 5 V (±5%) supply
High speed
Access time: t
RAC
= 60 /70ns (max)
Low power dissipation
Active mode: 2.73/2.42 W (max) (HB56G236 Series)
2.63/2.31 W (max) (HB56G136 Series)
Standby mode (TTL): 84 mW (max) (HB56G236 Series)
(TTL): 42 mW (max) (HB56G136 Series)
(CMOS): 5.25 mW (max) (L-version) (HB56G236 Series)
(CMOS): 2.63 mW (max) (L-version) (HB56G136 Series)
Fast page mode capability
Refresh period
1024 refresh cycles: 16 ms
128 ms (L-version)
•
•
•
•
•
HB56G236 Series, HB56G136 Series
Pin Description
Pin name
A0 to A9
Function
Address inputs:
Row address:
Column address:
Refresh address:
DQ0 to DQ35
CAS0
to
CAS3
RAS0
to
RAS3
WE
V
CC
V
SS
PD1 to PD4
NC
Data-in/Data-out
Column address strobe
Row address strobe
Read/Write enable
Power supply
Ground
Presence detect pin
No connection
A0 to A9
A0 to A9
A0 to A9
Presence Detect Pin Arrangement
(HB56G236)
Function
Pin No.
67
68
69
70
Pin name
PD1
PD2
PD3
PD4
60 ns
NC
NC
NC
NC
70 ns
NC
NC
V
SS
NC
Presence Detect Pin Arrangement
(HB56G136)
Function
Pin No.
67
68
69
70
Pin name
PD1
PD2
PD3
PD4
60 ns
V
SS
V
SS
NC
NC
70 ns
V
SS
V
SS
V
SS
NC
4
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