Document | DataSheet (235.11KB) |
Pin name A0 to A9 A0 to A9 I/O1 to I/O4 RAS CAS WE OE VCC VSS Function Address input Refresh address input Data-in/Data-out Row address strobe Column address strobe Read/Write enable Output enable Power (+5 V) Ground 4 Block Diagram RAS Row Driver Row Driver RAS Control Circuit 256 k Memory Ar.
• 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
HM514400B/BL, HM514400C/CL Series
Ordering Information
Type No. HM514400BS-6 HM514400BS-7 HM514400BS-8 HM514400BLS-6 HM514400BLS-7 HM514400BLS-8 HM514400CS-6 HM514400CS-7 HM514400CS-8 HM514400CLS-6 HM514400CLS-7 HM514400CLS-.
Distributor | Stock | Price | Buy |
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No. | Part # | Manufacture | Description | Datasheet |
---|---|---|---|---|
1 | HM514400A |
Hitachi Semiconductor |
1M-Bit x 4-BIT DYNAMIC RAM | |
2 | HM514400AL |
Hitachi Semiconductor |
1M-Bit x 4-BIT DYNAMIC RAM | |
3 | HM514400ASL |
Hitachi Semiconductor |
1M-Bit x 4-BIT DYNAMIC RAM | |
4 | HM514400BL |
Hitachi Semiconductor |
1/048/576-word X 4-bit Dynamic Random Access Memory | |
5 | HM514400C |
Hitachi Semiconductor |
1/048/576-word X 4-bit Dynamic Random Access Memory | |
6 | HM514400CL |
Hitachi Semiconductor |
1/048/576-word X 4-bit Dynamic Random Access Memory | |
7 | HM514170C |
Hitachi Semiconductor |
Dynamic Random Access Memory | |
8 | HM514170D |
Hitachi Semiconductor |
(HM514170D / HM514270D) Dynamic RAM | |
9 | HM514258A |
Hitachi |
CMOS DRAM | |
10 | HM514260A |
Hitachi Semiconductor |
16-Bit Dynamic Random Access Memory | |
11 | HM514260AL |
Hitachi Semiconductor |
16-Bit Dynamic Random Access Memory | |
12 | HM514260C |
Hitachi Semiconductor |
262144-word x 16-bit Dynamic Random Access Memory | |
13 | HM514270D |
Hitachi Semiconductor |
(HM514170D / HM514270D) Dynamic RAM | |
14 | HM514280A |
Renesas Technology |
18-bit Dynamic Random Access Memory | |
15 | HM514280AL |
Renesas Technology |
18-bit Dynamic Random Access Memory |