EO
Description
Features
HM51W16405 Series
HM51W17405 Series
16 M EDO DRAM (4-Mword
×
4-bit)
4 k Refresh/2 k Refresh
The HM51W16405 Series, HM51W17405 Series are CMOS dynamic RAMs organized 4,194,304-word
×
4-bit. They employ the most advanced CMOS technology for high performance and low power. The
HM51W16405 Series, HM51W17405 Series offer Extended Data Out (EDO) Page Mode as a high speed
access mode.They have package variations of standard 300-mil 26-pin plastic SOJ and 300-mil 26-pin
plastic TSOP.
•
Single 3.3 V (±0.3 V)
•
Access time: 50 ns/60 ns/70 ns (max)
•
Power dissipation
Active mode : 324 mW /288 mW /252 mW (max) (HM51W16405 Series)
: 360mW/324 mW/288 mW (max) (HM51W17405 Series)
Standby mode : 7.2 mW (max)
: 0.36 mW (max) (L-version)
•
EDO page mode capability
•
Long refresh period
4096 refresh cycles : 64 ms (HM51W16405 Series)
: 128 ms (L-version)
2048 refresh cycles : 32 ms (HM51W17405 Series)
: 128 ms (L-version)
•
4 variations of refresh
RAS-only
refresh
CAS-before-RAS
refresh
Hidden refresh
Self refresh (L-version)
Elpida Memory, Inc. is a joint venture DRAM company of NEC Corporation and Hitachi, Ltd.
LP
E0152H10 (Ver. 1.0)
(Previous ADE-203-647D (Z))
Jul. 6, 2001 (K)
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HM51W16405 Series, HM51W17405 Series
•
Battery backup operation (L-version)
•
Test function
16-bit parallel test mode
EO
Type No.
HM51W16405S-5
HM51W16405S-6
HM51W16405S-7
HM51W16405LS-5
HM51W16405LS-6
HM51W16405LS-7
HM51W17405S-5
HM51W17405S-6
HM51W17405S-7
HM51W17405LS-5
HM51W17405LS-6
HM51W17405LS-7
HM51W16405TS-5
HM51W16405TS-6
HM51W16405TS-7
HM51W17405TS-5
HM51W17405TS-6
HM51W17405TS-7
2
Ordering Information
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
50 ns
60 ns
70 ns
50 ns
60 ns
70 ns
50 ns
60 ns
70 ns
50 ns
60 ns
70 ns
300-mil 26-pin plastic TSOP II
(TTP-26/24DA)
Package
300-mil 26-pin plastic SOJ
(CP-26/24DB)
HM51W16405LTS-5
HM51W16405LTS-6
HM51W16405LTS-7
HM51W17405LTS-5
HM51W17405LTS-6
HM51W17405LTS-7
LP
Data Sheet E0152H10
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HM51W16405 Series, HM51W17405 Series
EO
V
CC
I/O1
I/O2
WE
RAS
A11
A10
A0
A1
A2
A3
V
CC
Pin Arrangement
HM51W16405S/LS Series
HM51W16405TS/LTS Series
1
2
3
4
5
6
26
25
24
23
22
21
V
SS
I/O4
I/O3
CAS
OE
A9
V
CC
I/O1
I/O2
WE
RAS
A11
1
2
3
4
5
6
26
25
24
23
22
21
V
SS
I/O4
I/O3
CAS
OE
A9
Pin Description
Pin name
A0 to A11
Function
Address input
— Row/Refresh address A0 to A11
— Column address
A0 to A9
Data input/Data output
Row address strobe
Column address strobe
Read/Write enable
Output enable
Power supply
Ground
LP
8
9
19
18
17
16
15
14
(Top view)
A8
A7
A6
A5
A4
10
11
12
13
V
SS
A10
A0
A1
A2
A3
V
CC
8
9
10
11
12
13
19
18
17
16
15
14
(Top view)
A8
A7
A6
A5
A4
V
SS
ro
du
ct
3
I/O1 to I/O4
RAS
CAS
WE
OE
V
CC
V
SS
Data Sheet E0152H10
HM51W16405 Series, HM51W17405 Series
Pin Arrangement
HM51W17405S/LS Series
HM51W17405TS/LTS Series
EO
V
CC
I/O1
I/O2
WE
RAS
NC
A10
A0
A1
A2
A3
V
CC
1
2
3
4
5
6
26
25
24
23
22
21
V
SS
I/O4
I/O3
CAS
OE
A9
V
CC
I/O1
I/O2
WE
RAS
NC
1
2
3
4
5
6
26
25
24
23
22
21
V
SS
I/O4
I/O3
CAS
OE
A9
Pin Description
Pin name
A0 to A10
Function
Address input
— Row/Refresh address A0 to A10
— Column address
A0 to A10
Data input/Data output
Row address strobe
Column address strobe
Read/Write enable
Output enable
Power supply
Ground
No connection
LP
8
9
19
18
17
16
15
14
A8
A7
A6
A5
A4
10
11
12
13
V
SS
(Top view)
A10
A0
A1
A2
A3
8
9
10
11
12
13
19
18
17
16
15
14
A8
A7
A6
A5
A4
V
SS
ro
V
CC
(Top view)
du
ct
I/O1 to I/O4
RAS
CAS
WE
OE
V
CC
V
SS
NC
Data Sheet E0152H10
4
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