ADE-203-269A (Z)
1,048,576-word
脳
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
脳
4-bit. HM514400B/BL, HM514400C/CL
have realized higher density, higher performance
and various functions by employing 0.8
碌m
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.
鈥?Test function
鈥?Battery back up operation
鈥?HM514400BL Series (L-version)
鈥?HM514400CL Series (L-version)
HM514400B/BL Series
HM514400C/CL Series
Features
鈥?Single 5 V (鹵10%)
鈥?High speed
鈥?Access time
鈥?/div>
60 ns/70 ns/80 ns (max)
Low power dissipation
鈥?Active mode
605 mW/550 mW/495 mW (max)
鈥?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
鈥?/div>
RAS
-only refresh
鈥?/div>
CAS
-before-
RAS
refresh
鈥?Hidden refresh
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