HM51W16400 Series
HM51W17400 Series
4,194,304-word
×
4-bit Dynamic RAM
ADE-203-649C (Z)
Rev. 3.0
Feb. 27, 1997
Description
The Hitachi HM51W16400 Series, HM51W17400 Series are CMOS dynamic RAMs organized 4,194,304-
word
×
4-bit. They employ the most advanced 0.5
µm
CMOS technology for high performance and low
power. The HM51W16400 Series, HM51W17400 Series offer Fast Page Mode as a high speed access
mode. They have package variations of standard 300-mil 26-pin plastic SOJ and standard 300-mil 26-pin
plastic TSOP.
Features
•
•
•
Single 3.3 V (±0.3 V)
Access time: 50 ns/60 ns/70 ns (max)
Power dissipation
Active mode : 324 mW/288mW/252 mW (max) (HM51W16400 Series)
: 360 mW/324 mW/288 mW (max) (HM51W17400 Series)
Standby mode : 7.2 mW (max)
: 0.36 mW (max) (L-version)
Fast page mode capability
Long refresh period
4096 refresh cycles : 64 ms (HM51W16400 Series)
: 128 ms (L-version)
2048 refresh cycles : 32 ms (HM51W17400 Series)
: 128 ms (L-version)
•
•
HM51W16400 Series, HM51W17400 Series
•
4 variations of refresh
RAS-only
refresh
CAS-before-RAS
refresh
Hidden refresh
Self refresh (L-version)
•
•
Battery backup operation (L-version)
Test function
16-bit parallel test mode
Ordering Information
Type No.
HM51W16400S-5
HM51W16400S-6
HM51W16400S-7
HM51W16400LS-5
HM51W16400LS-6
HM51W16400LS-7
HM51W17400S-5
HM51W17400S-6
HM51W17400S-7
HM51W17400LS-5
HM51W17400LS-6
HM51W17400LS-7
HM51W16400TS-5
HM51W16400TS-6
HM51W16400TS-7
HM51W16400LTS-5
HM51W16400LTS-6
HM51W16400LTS-7
HM51W17400TS-5
HM51W17400TS-6
HM51W17400TS-7
HM51W17400LTS-5
HM51W17400LTS-6
HM51W17400LTS-7
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)
2
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