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Part: HM62W16258BLTT
Category:
Description:
Company: Hitachi Semiconductor (acquired by Renesas)
Datasheet: Download HM62W16258BLTT datasheet File size : 307 kB
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Datasheet text preview:
HM62W16258B Series
4 M SRAM (256-kword × 16-bit)
ADE-203-976B (Z) Rev. 2.0 Oct. 14, 1999
Description
The Hitachi HM62W16258B Series is 4-Mbit static RAM organized 262,144-word × 16-bit. HM62W16258B Series has realized higher density, higher performance and low power consumption by employing Hi-CMOS process technology. It offers low power standby power dissipation; therefore, it is suitable for battery backup systems. It is packaged in standard 44-pin plastic TSOPII.
Features
· · · Single 3.3 V supply: 3.3 V ± 0.3 V Fast access time: 55 ns/70 ns (max) Power dissipation: Active: 9.9 mW (typ) Standby: 3.3 µW (typ) Completely static memory. No clock or timing strobe required Equal access and cycle times Common data input and output. Three state output Battery backup operation.
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HM62W16258B Series
Ordering Information
Type No. HM62W16258BLTT-5 HM62W16258BLTT-7 HM62W16258BLTT-5SL HM62W16258BLTT-7SL Access time 55 ns 70 ns 55 ns 70 ns Package 400-mil 44-pin plastic TSOPII (normal-bend type) (TTP-44DB)
2
HM62W16258B Series
Pin Arrangement
44-pin TSOP A4 A3 A2 A1 A0 CS I/O0 /O1 I/O2 I/O3 VCC VSS I/O4 I/O5 I/O6 I/O7 WE A17 A16 A15 A14 A13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 (Top view) 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 A5 A6 A7 OE UB LB I/O15 I/O14 /O13 V I/O12
SS
VCC I/O11 I/O10 I/O9 I/O8 NC A8 A9 A10 A11 A12
Pin Description
Pin name A0 to A17 I/O0 to I/O15 CS WE OE LB UB VCC VSS NC Function Address input Data input/output Chip select Write enable Output enable Lower byte select Upper byte select Power supply Ground No connection
3
Others parts begin by hm
HM-1 HM-2 HM-3 HM-4 HM-5 HM-6 HM-7 HM-8 HM-9 HM-10 HM-11 HM-12 HM-13
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