(HM51W16400 / HM51W17400) Dynamic RAM
Description
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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 4,194,304word × 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
HM51W16400 Series, HM51W17400 Series
Pin Arrangement
HM51W16400S/LS Series HM51W16400TS/LTS Series
VCC I/O1 I/O2 WE RAS A1...
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