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HM514400CZ-7

1,048,576-word × 4-bit Dynamic Random Access Memory

Hitachi -> Renesas Electronics 

ADE-203-269A (Z)

HM514400B/BL Series

HM514400C/CL Series

1,048,576-word × 4-bit Dynamic Random Access Memory

Rev. 1.0

Nov. 29, 1994

The Hitachi HM514400B/BL, HM514400C/CL

are CMOS dynamic RAM organized 1,048,576-

word × 4-bit. HM514400B/BL, HM514400C/CL

have realized higher density, higher performance

and various functions by employing 0.8 µm CMOS

process technology and some new CMOS circuit

design technologies. The HM514400B/BL,

HM514400C/CL offer Fast Page Mode as a high

speed access mode. Multiplexed address input

permits the HM514400B/BL, HM514400C/CL to

be packaged in standard 300-mil 26-pin plastic

SOJ, standard 400-mil 20-pin plastic ZIP and 26-

pin plastic TSOP II.

Features

• Single 5 V (±10%)

• High speed

— Access time

60 ns/70 ns/80 ns (max)

• Low power dissipation

— Active mode

605 mW/550 mW/495 mW (max)

— Standby mode 11 mW (max)

0.55 mW (max) (L-version)

• Fast page mode capability

• 1024 refresh cycles : 16 ms

1024 refresh cycles : 128 ms (L-version)

• 3 variations of refresh

— RAS-only refresh

— CAS-before-RAS refresh

— Hidden refresh

• Test function

• Battery back up operation

— HM514400BL Series (L-version)

— HM514400CL Series (L-version)

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