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Part: HM62W16255HTTI
Category:
Description:
Company: Hitachi Semiconductor (acquired by Renesas)
Datasheet: Download HM62W16255HTTI datasheet File size : 307 kB
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Datasheet text preview:
HM62W16255HC Series
4M High Speed SRAM (256-kword × 16-bit)
ADE-203-1200C (Z) Rev. 2.0 Nov. 1, 2001 Description
The HM62W16255HC is a 4-Mbit high speed static RAM organized 256-kword × 16-bit. It has realized high speed access time by employing CMOS process (6-transistor memory cell) and high speed circuit designing technology. It is most appropriate for the application which requires high speed, high density memory and wide bit width configuration, such as cache and buffer memory in system. The HM62W16255HC is packaged in 400-mil 44-pin SOJ and 400-mil 44-pin plastic TSOPII for high density surface mounting.
Features
· · · · · · · · · · · Single 3.3 V supply: 3.3 V ± 0.3 V Access time: 10/12 ns (max) Completely static memory No clock or timing strobe required Equal access and cycle times Directly TTL compatible All inputs and outputs Operating current: 145/130 mA (max) TTL standby current: 40 mA (max) CMOS standby current : 5 mA (max) : 1 mA (max) (L-version) Data retention current: 0.6 mA (max) (L-version) Data retention voltage: 2.0 V (min) (L-version) Center VCC and VSS type pin out
HM62W16255HC Series
Ordering Information
Type No. Access time Device marking HM62W16255CJP10 HM62W16255CJP12 HM62W16255CLJP10 HM62W16255CLJP12 HM62W16255CTT10 HM62W16255CTT12 HM62W16255CLTT10 HM62W16255CLTT12 400-mil 44-pin plastic TSOPII (TTP-44DE) Package 400-mil 44-pin plastic SOJ (CP-44D) HM62W16255HCJP-10 10 ns HM62W16255HCJP-12 12 ns HM62W16255HCLJP-10 10 ns HM62W16255HCLJP-12 12 ns HM62W16255HCTT-10 10 ns HM62W16255HCTT-12 12 ns HM62W16255HCLTT-10 10 ns HM62W16255HCLTT-12 12 ns
Rev.2, Nov. 2001, page 2 of 18
HM62W16255HC Series
Pin Arrangement
Pin Description
Pin name A0 to A17 I/O1 to I/O16 Function Address input Data input/output Chip select Output enable Write enable Upper byte select Lower byte select Power supply Ground No connection
CS OE WE UB LB
VCC VSS NC
Rev.2, Nov. 2001, page 3 of 18
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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